Balanced Valve Patents (Class 137/505.18)
  • Patent number: 10591066
    Abstract: A pressure regulator comprising a housing containing a channel arranged to communicate a fluid from a fluid inlet to a fluid outlet, said channel comprising a valve seat and closure member with said closure member operable with valve seat to control fluid flow through the channel and; wherein the housing comprises a resilient diaphragm in fluid communication with the fluid and in physical communication with the closure member such that the diaphragm is operable to deform in response to a change in pressure of the fluid and such that deformation of the diaphragm causes the closure member to change position and; wherein a hollow member is located in the channel and the stem of said hollow member defines a narrow path between the channel and outside of said stem in a region proximate to the fluid outlet such that fluid passing through the channel is communicated from the fluid inlet to the fluid outlet via said narrow path such that the pressure of the fluid emerging from said narrow path into the channel is com
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: March 17, 2020
    Assignee: THE WEST GROUP LIMITED
    Inventor: John Leslie Leng
  • Patent number: 10578186
    Abstract: Spring seat vibration damper apparatus for use with fluid pressure regulators are disclosed. A disclosed apparatus includes a first spring seat of a fluid pressure regulator defining a first protrusion and a second spring seat of the fluid pressure regulator defining a second protrusion. The second protrusion is configured to receive at least a portion of the first protrusion. The first spring seat moves relative to the second spring seat to provide a damping effect between the protrusions.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: March 3, 2020
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Ernesto Vasquez, Justin Wade Hart, Tony Alan Durant
  • Patent number: 10527182
    Abstract: A pressure regulator including a body having a body inlet, a body outlet and a fluid passageway defined therebetween for allowing a fluid to be dispensed therethrough, the body further including a pressure control chamber adapted to receive a control fluid at a control pressure; a valve disposed in the fluid passageway for restricting flow of the fluid through the fluid passageway; a regulating member operatively connected to the valve for adjusting the position of the valve so as to maintain the fluid in the fluid passageway at a nominal pressure; a pressure sensor disposed between the control chamber and the fluid passageway for sensing a difference between the nominal pressure and the control pressure; and a resilient shutoff member operatively connected to the valve and the pressure sensor for closing the valve when the difference between the nominal pressure and the control pressure is below a predetermined threshold value.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: January 7, 2020
    Assignee: Lorax Systems Inc.
    Inventors: Mark Bishoff, Guy Bishoff
  • Patent number: 10520957
    Abstract: A pressure regulating device including a valve body, an actuator assembly coupled to the valve body and including a diaphragm, a valve seat disposed in the valve body, a control assembly operatively connected to the diaphragm to move responsive to movement of the diaphragm, and a travel stop. The control assembly includes a control element that is movable, relative to the valve seat, between an open position, wherein the control element is spaced from the valve seat, and a closed position, wherein the control element sealingly engages the valve seat. The travel stop is configured to engage the control element to stop movement of the control element upon reaching the open position. The travel stop is adjustable to change the open position of the control element, such that a wide open flow capacity of the pressure regulating device can be adjusted.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: December 31, 2019
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Jeff Welch, II, Jake Buford, Matthew D. Reynolds, Christopher J. Hunt
  • Patent number: 10268213
    Abstract: A check valve's housing has a valve disposed therein to open or close a flow path from the housing's inlet to its outlet based on a difference between pressures at the inlet and outlet. The valve includes a bellows, a poppet, and a spring. The poppet includes a hollow structure extending through the poppet's plate and terminating in a first open end disposed within the bellows, an annular flange between the second face of the poppet's plate and the housing's outlet, and an open-ended tube extending from the annular flange into the housing's outlet. The spring, disposed within the hollow tubular structure, positions the annular flange to seal the outlet when the pressure difference is less than a predetermined amount and compresses when the difference exceeds the predetermined amount wherein the annular flange is unsealed from the housing's outlet to open the flow path.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: April 23, 2019
    Assignee: The United States of America as Represented by the Administrator of NASA
    Inventors: Brad M Addona, James A Richard, Richard J Joye
  • Patent number: 10196116
    Abstract: A connection system, in particular for a pressure reducer of a diving regulator, the system comprising a connector (1) having a first end (2) adapted to be fastened to a pressure reducer and a second end (2?) adapted to be fastened to a valve of a compressed air cylinder, said connector (1) having an internal passage (4) extending substantially axially between said first and second ends, said internal passage (4) including a filter (5), preferably made of sintered stainless steel, and a retaining member (6a; 6b; 6c; 6c?; 6d; 6e) fastened to said second end (2?) and supporting firstly said filter (5) and secondly a main O-ring (7; 9e), said retaining member (6a; 6b; 6c; 6c?; 6d; 6e) forming an inlet opening, said system including a shutter device comprising a shutter member (9a; 9b; 9c: 9c?; 9d; 9e) that is deformable and/or movable between a shut position in which it shuts said inlet opening, and an open position in which it does not shut said inlet opening, said shutter member (9a; 9b; 9c: 9c?; 9d; 9e) being
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: February 5, 2019
    Assignee: R.G. S.A.S. DI ROSARIA GALLI & CO
    Inventor: Fabio Stradella
  • Patent number: 10024339
    Abstract: Ejector assemblies and engine systems have a pressure regulator in fluid communication with an ejector. The pressure regulator receives boost pressure and selectively allows the boost pressure to pass through a valve opening therein under selected engine conditions and into the ejector as regulated boost pressure. Both the pressure regulator and the ejector each have a conduit defining a passageway that includes a Venturi gap separating the passageway into a converging section and a first diverging section that both narrow toward the Venturi gap. The pressure regulator has a piston operatively connected to a valve mechanism positioned for movement therewith to control the passage of the boost pressure through the valve opening, and the valve mechanism defines a passage therethrough that includes a gradually narrowing portion that is narrower than the valve opening.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: July 17, 2018
    Assignee: Dayco IP Holdings, LLC
    Inventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Matthew C. Gilmer, Keith Hampton, Andrew D. Niedert
  • Patent number: 9989192
    Abstract: A device for regulating the pressure and/or flow of pressurized gas, comprising a body with a gas inlet, a gas outlet and a gas passage connecting the outlet with the inlet, a pressure reducer and a flow selector arranged downstream of the pressure reducer, a hand-wheel rotatably mounted on the body and cooperating with the flow selector for adjusting the flow, and a pressure indicator located at the center of the hand-wheel. The device comprises also a shaft rigidly fixed to the body and rotatably bearing the hand-wheel, the shaft supporting the pressure reducer and comprising a gas channel fluidly connected to the gas passage in the body.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: June 5, 2018
    Assignee: Luxembourg Patent Company S.A.
    Inventors: Morgan Lamiable, Sylvain Heinrich, Jean-Claude Schmitz
  • Patent number: 9920857
    Abstract: A vacuum valve is provided with opening pressure setting means that sets a set value of a fluid pressure in a primary side passage beyond which communication is opened and forcible opening means that forcibly opens communication regardless of the fluid pressure in the primary side passage. The opening pressure setting means includes a spring receiver fixed to a stem, a compression coil spring having a lower end supported by the spring receiver, and an adjustment screw, movable in the axial direction, that presses the upper end of the compression coil spring. The forcible opening means includes a piston inserted onto the stem 5 under the spring receiver so as to be movable upward and downward and piston driving means that moves the piston and the spring receiver upward integrally by moving the piston upward using compressed air.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: March 20, 2018
    Assignee: FUJIKIN INCORPORATED
    Inventors: Tsuyoshi Tanikawa, Michio Yamaji, Tadayuki Yakushijin, Keisuke Ishibashi, Yasumasa Yanagida
  • Patent number: 9891635
    Abstract: A pressure-reducing flow regulator for use between a pressurized source and a pump inlet uses dual pistons to reduce the pressure at the pump inlet. Pressure reduction is achieved due to the ratio between the sum of the areas of the two pistons and the area of the inlet. When used in a compressed air foam system, this pressure reducer serves to increase the volume of air available at the desired pump pressure. In one embodiment, a flow of liquid is allowed through a central tube between the two pistons. In another embodiment, the central tube is sealed and a low-pressure bypass allows for flow between the outlet chamber and pressure chamber.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: February 13, 2018
    Inventor: Carroll G. Rowe
  • Patent number: 9664299
    Abstract: A device for regulating pressure and/or mass flow of a gaseous or liquid fluid conveyed through a line in a space propulsion system includes a first, piezoelectrically actuatable regulating valve and at least two second, magnetically actuatable regulating valves. The regulating valves are connected to each other and to a line input in such a way that in a nominal mode the pressure and the mass flow of the fluid can be set by the first regulating valve, and a connection or isolation of the first regulating valve with or from the line input can be produced by the second regulating valves. In an emergency mode the pressure and the mass flow of the fluid can be set by the second regulating valves.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: May 30, 2017
    Assignee: Astrium GmbH
    Inventor: Thomas Maier
  • Patent number: 9464731
    Abstract: A pressure reducing valve comprises an open-close valve and a piston. The open-close valve makes switching between connecting and isolating a primary port and a secondary port. The piston makes sliding motion inside the cylinder according to a difference between force applied from the pressure regulating chamber and force applied from the pressure reducing chamber, thereby opening and closing the open-close valve. The open-close valve includes a valve stem and a valve seat fixing member. The valve seat fixing member restrains displacement of the piston toward a side upstream of the open-close valve by abutting on an end surface of the piston. The valve seat fixing member includes a channel hole communicatively connecting a housing part for the valve stem and the pressure reducing chamber.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: October 11, 2016
    Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuo Haneda, Toshikatsu Kubo, Eiji Okawachi, Akira Yamashita
  • Patent number: 9377118
    Abstract: In a pressure reducing valve, a linking mechanism for linking a valve shaft of a pressure reducing valve body and a diaphragm rod is formed from a bottomed linking hole provided in the diaphragm rod, a decreased diameter shaft portion provided on the valve shaft, first and second increased diameter shaft portions disposed on the decreased diameter shaft portion, a retaining plate fitted into the linking hole and has a latching recess portion, and a latching ring that engages with a first latching groove provided on the retaining plate and a second latching groove provided on the linking hole, the latching ring being capable of increasing in diameter along a radial direction of the valve shaft, and a set spring is provided in a compressed state in the linking hole, the set spring urging the retaining plate toward the side on which the pressure reducing valve body is opened.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: June 28, 2016
    Assignee: Keihin Corporation
    Inventor: Kei Ishihara
  • Patent number: 9334978
    Abstract: A valve device for a hydraulic circuit includes an actuator unit, a valve unit and an opening. The actuator unit comprises an electromagnetic circuit comprising a movable armature, a core, a coil configured to be supplied with a current and a flux guiding means, and a space arranged in a valve interior between the armature and the core. The valve unit comprises an outlet, an inlet arranged between the outlet and the space in the valve interior, a valve seat arranged between the inlet and the outlet, and a valve closing body connected with the armature. The valve closing body is spring-loaded towards the valve seat. The opening is arranged at an end of the valve unit opposite to the space. The opening comprises a valve tappet arranged therein. The valve tappet is pressure-loaded and displaceable counter to the valve closing body in an opening direction.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: May 10, 2016
    Assignee: PIERBURG GMBH
    Inventors: Rolf Lappan, Werner Buse, Christoph Sadowski, Lukas Romanowski
  • Patent number: 9312550
    Abstract: The present invention is directed to devices for controlling the fluid flow and pressure, including adjustable pressure regulators, pressure regulators with an inlet restrictor, semi-automatic valve and pressure regulator with a by-pass valve. The adjustable pressure regulators have a movable shuttle, shuttle housing, a high pressure diaphragm, a low pressure diaphragm and a fluidic conduit connecting the inlet to the outlet. One or more of these components are adjusted to modify the outlet pressure of the regulator. The inlet restrictor allows incoming fluid to enter the pressure regulators when the pressure of the incoming fluid is higher than a threshold level. The positioning the inlet restrictor can be used to prevent a partial vacuum from forming inside a pressure regulator. The semi-automatic valve is opened manually but closes automatically when fluid flowing through the valve is insufficient to keep the valve open. The semi-automatic valve can also be a semi-automatic electrical switch.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 12, 2016
    Assignee: Intelligent Energy Limited
    Inventors: Andrew J. Curello, Paul Spahr, Kurt Rath
  • Publication number: 20150075649
    Abstract: A device (1; 101) for controlling the flow of a fluid through a conduit (2; 102; 402; 602; 702) from an upstream side (3; 103; 703) to a downstream side (5; 105; 405; 605; 705), the device (1; 101) comprising: a valve having a valve member (14; 114; 414; 514; 614) arranged to move reciprocally selectively to open and close one or more valve apertures (10; 110; 412; 512; 611, 612), thereby controlling flow of the fluid from the upstream side (3; 103; 703) to the downstream side (5; 105; 405; 605; 705); and means for introducing a reference pressure (24; 124; 324; 424; 524; 624); wherein said valve member (14; 114; 414; 514; 614) is acted on by the pressure of the downstream side (5; 105; 405; 605; 705) and the reference pressure so as to be moved by the difference between said pressures.
    Type: Application
    Filed: November 8, 2012
    Publication date: March 19, 2015
    Inventor: Thomas Povey
  • Patent number: 8960221
    Abstract: An electromagnetic pressure regulating valve includes a valve body and causes a valve body to move by an electromagnetic proportional solenoid to adjust an opening degree of a valve passage, thereby regulating secondary pressure to target pressure. A pressure return chamber is formed in the housing, and a diaphragm seal is provided at the valve body. The diaphragm seal receives the secondary pressure of the pressure return chamber to cause the valve body to move toward a closed position. A bearing member is provided between the valve body and the housing. In a gap between the valve body and the housing, a high-pressure sealing member is provided closer to the valve passage than the bearing member, and a low-pressure sealing member is provided closer to the bearing member than the high-pressure sealing member. A buffer chamber connected to a secondary port is formed between the sealing members.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: February 24, 2015
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Kaoru Nomichi, Yutaka Suzuki, Makoto Ninomiya, Shoji Murakami
  • Patent number: 8944097
    Abstract: In a decompression valve, a valve mechanism housed in a body has a valve body that can be seated on a valve seat facing a valve chamber into which high pressure fluid is introduced, and a valve shaft that has one end linked to a pressure receiving member operable in association with pressure of a decompression chamber communicating with a valve hole surrounded by the valve seat and that extends through the valve hole while having the other end facing a back pressure chamber communicating with the decompression chamber, and the valve body is fitted around the outer periphery of the valve shaft.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: February 3, 2015
    Assignee: Keihin Corporation
    Inventor: Hiroaki Yamamoto
  • Patent number: 8944089
    Abstract: A balanced port control assembly includes a control element with a valve plug coupled to a valve stem and a pressure sensing labyrinth defined at least partly by the valve plug. The pressure sensing labyrinth provides for fluid communication between a sealing surface of the valve plug and a balancing diaphragm carried internally of the control element. The pressure sensing labyrinth includes at least one pressure sensing passage extending from the sealing surface and into the valve plug along a central longitudinal axis of the control element. So configured, fluid pressure resident on the sealing surface of the valve plug is also resident on the balancing diaphragm such that equal and opposite forces are applied to the control element.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: February 3, 2015
    Assignee: Emerson Process Management Regulator Technologies, Inc.
    Inventors: Tung K. Nguyen, Jason Scott Mevius, Biao Zhou
  • Patent number: 8910657
    Abstract: The apparatus uses an electrical signal controlled valve, for instance, a proportional solenoid controlled valve, controlled by a controller, to control a pilot operated valve for regulating pressure of fluid in a port thereof in connection with a fluid operated system. A pressure sensor in connection with the port is used to monitor the regulated pressure. The regulated pressurized fluid in the port is also used, as required, as a component of the pilot signal. The valves are configured such that when the electrical control signal is absent or the electrically controlled valve is unresponsive thereto, the presence of pressurized fluid at a predetermined supply pressure, will automatically operate the pilot operated valve in cooperation with a biasing element thereof, for delivering pressurized fluid at a minimum or reduced regulated pressure.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: December 16, 2014
    Assignee: CNH Industrial America LLC
    Inventor: Guy T. Stoever
  • Patent number: 8899258
    Abstract: A drain valve includes an inlet plenum, a first orifice downstream from the inlet plenum, a second orifice downstream from the first orifice, and a fluid passage between the first and second orifices. A piston having a first position and a second position has a first surface area exposed to the fluid passage when the piston is in the first and second positions and a second surface area exposed to the inlet plenum when the piston is in the second position.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: December 2, 2014
    Assignee: Graham-White Manufacturing Company
    Inventor: William F. Ginder
  • Patent number: 8869827
    Abstract: A communication hole 17, which communicates with a primary-side port 15 and a secondary-side port 16, is opened and closed by a valve element 21 contacting with a valve seat 18, and a spring force in a direction of contacting with the valve seat 18 is applied to the valve element 21 by a valve spring 25. A pressure-regulating diaphragm 27 is mounted in a housing 11 opposite the valve element 21, and a spring force in a direction of opening the valve element 21 is biased to the pressure-regulating diaphragm 27 by a pressure-regulating spring 43. A tip face 49 that opens and closes a relief hole 47 is provided, and a stem 47 that converts, to the valve element 21, a movement of the pressure-regulating diaphragm 27 toward the valve element 21 is provided in the valve element 21.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: October 28, 2014
    Assignee: Koganei Corporation
    Inventor: Takeshi Yamauchi
  • Publication number: 20140090717
    Abstract: A fluid regulating device includes a regulator valve having a valve body defining an inlet and an outlet and a valve port disposed between the inlet and the outlet. A housing assembly is disposed adjacent the valve port, and the housing assembly includes a first aperture adapted to receive a valve disc. A balancing diaphragm is secured to a portion of the valve disc and a portion of the housing assembly, and a portion of a balancing cavity is defined by a top surface of the balancing diaphragm and an interior surface of the housing assembly. A sensing passage extends from the inlet of the regulator valve to the balancing cavity such that the inlet of the regulator valve is in fluid communication with the balancing cavity.
    Type: Application
    Filed: March 11, 2013
    Publication date: April 3, 2014
    Applicant: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventor: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
  • Publication number: 20140090719
    Abstract: A balanced pressure regulator includes a valve body having a fluid inlet and a fluid outlet connected by a fluid passageway. A valve seat is disposed within the fluid passageway. A self-aligning valve plug is at least partially disposed within the fluid passageway, the self-aligning valve plug interacting with the valve seat to selectively open or close the fluid passageway. A retainer is partially disposed within a bore of the self-aligning valve plug and operatively connects the self-aligning valve plug to a valve stem having a ball portion. More specifically, the retainer includes a recess adapted to receive the ball portion of the valve stem, such that the self-aligning valve plug automatically rotates around the ball portion of the valve stem to achieve alignment and sealing engagement between a valve disc of the self-aligning valve plug and the valve seat.
    Type: Application
    Filed: September 26, 2013
    Publication date: April 3, 2014
    Applicant: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Jason S. Mevius, Guolei Fan, Biao Zhou
  • Publication number: 20140090727
    Abstract: A balanced port control assembly includes a control element with a valve plug coupled to a valve stem and a pressure sensing labyrinth defined at least partly by the valve plug. The pressure sensing labyrinth provides for fluid communication between a sealing surface of the valve plug and a balancing diaphragm carried internally of the control element. The pressure sensing labyrinth includes at least one pressure sensing passage extending from the sealing surface and into the valve plug along a central longitudinal axis of the control element. So configured, fluid pressure resident on the sealing surface of the valve plug is also resident on the balancing diaphragm such that equal and opposite forces are applied to the control element.
    Type: Application
    Filed: October 24, 2012
    Publication date: April 3, 2014
    Applicant: Emerson Process Management Regulator Technologies, Inc
    Inventors: Tung K. Nguyen, Jason Scott Mevius, Biao Zhou
  • Publication number: 20140083530
    Abstract: A balanced pressure regulator includes a valve body having a fluid inlet and a fluid outlet connected by a fluid passageway. A valve seat is disposed within the fluid passageway. A valve plug is at least partially disposed within the fluid passageway, the valve plug interacting with the valve seat to selectively open or close the fluid passageway. A retainer operatively connects the valve plug to a valve stem. A diaphragm separates a chamber from the fluid passageway and a balancing passage fluidly connects the fluid passageway with the chamber. A balancing tube extends outward, away from the retainer, fluidly connecting the fluid passageway with the balancing passage.
    Type: Application
    Filed: March 12, 2013
    Publication date: March 27, 2014
    Applicant: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventor: Emerson Process Management Regulator Technologies, Inc.
  • Publication number: 20140076428
    Abstract: A pressure regulator includes a body having a gas inlet for a gas having an inlet pressure and a gas outlet for the gas having an outlet pressure lower than the inlet pressure and a passage connecting the outlet to the inlet. A regulator piston is arranged to control the outlet pressure of the gas by moving closer to and further away from a pressure regulator seat, and a regulating elastic element is arranged to bias the regulating piston in a direction away from the pressure regulator seat, against the force of gas at outlet pressure acting on the regulator piston in a direction towards the pressure regulator seat. The passage is fluidly connected to a floating piston, arranged to move in response to increased inlet pressure by compressing a stabilizing elastic element. The stabilizing elastic element is connected to the regulating elastic element via a connection element.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 20, 2014
    Applicant: GCE HOLDING AB
    Inventor: Petr JEHLICKA
  • Patent number: 8584699
    Abstract: A compensating pressure regulator comprising a single stage regulating device for controlling the flow of compressed gas therethrough; and a compensating device for automatically adjusting transient pressure conditions to provide a substantially uniform gas pressure output by use of a pin like-piston having dual sources of pressure thereon. The compensating pressure regulator for use with bottled gas on portable tools.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: November 19, 2013
    Inventor: Jared Carver
  • Patent number: 8550113
    Abstract: A single stage vacuum breaker flow regulator includes a diaphragm retained in an elevated position in between atmosphere and an outlet chamber for a gaseous medium. A valve in communication with an inlet chamber is yieldingly urged to a closed position by a spring. Cam levers are movable by the diaphragm upon a reduction in pressure to sub-atmospheric in the outlet chamber. The movement of said cam levers in response to a reduction in pressure is transmitted to a yieldingly movable valve to open said valve to the flow of gas from said inlet chamber to said outlet chamber.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: October 8, 2013
    Assignee: Hamernik-Harrod, Inc.
    Inventors: Edward L. Hamernik, David B. Larson
  • Patent number: 8469052
    Abstract: A control valve comprises a valve housing (1) having an inlet side (17) and an outlet side (18). The control valve also has a pressure maintaining arrangement for maintaining a constant differential pressure between the inlet and outlet sides, as well as an amount control arrangement for setting the maximum flow through the valve. A pair of cylinder shells located in the flow path have cooperating recesses which provide an uncovered area forming an opening (25). One cylinder shell is rotatable relative to the other cylinder shell by a rotatable handle (13), whereby a larger or smaller opening (25) between the cooperating cylinder shells may be provided. Both cylinder shells are axially displaceable within a seat hole (8), resulting in an increase or a decrease of the opening (25).
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: June 25, 2013
    Assignee: Frese A/S
    Inventor: Agnes Jørgensen
  • Patent number: 8459297
    Abstract: A pressure reducing valve including a balanced valve cartridge. The balanced valve cartridge has a retainer including a central bore. A valve seat and a valve plug are disposed within the central bore and cooperate to open and close the valve. A cap closes one end of the central bore, the cap including a blind bore for receiving a portion of the valve plug. Downstream fluid pressure is transmitted into the blind bore through a hollow portion of the valve plug, thus balancing the valve plug within the retainer.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: June 11, 2013
    Assignee: Tescom Corporation
    Inventor: Jason David Clifford
  • Patent number: 8459288
    Abstract: A regulator for gas having a diaphragm rod held at the center of a diaphragm of which rim is sandwiched between a body and a cover via diaphragm retainers, and a valve element capable of seating itself at a valve seat fixedly placed in the body with a valve hole opening at the center provided in an intermediate portion of a valve shaft having its one end detachably coupled to the diaphragm rod and its other end slidably fitted in a guide opening provided on the body side, wherein the body (34) is equipped with a valve action unit (120) formed by assembling in advance a valve seat member (100) having a valve hole (111) and the valve seat (112) provided thereon, a guide member (106) having a guide opening (105) and pressed into the valve seat member (100), and a valve shaft (114) having a valve element (113) provided thereon in a state of having one end of the valve shaft (114) projected from the valve hole (111) and the other end of the valve shaft (114) slidably fitted into the guide opening (105) It is there
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: June 11, 2013
    Assignee: Keihin Corporation
    Inventor: Kazuki Ishikawa
  • Publication number: 20130081715
    Abstract: A fluid circulation valve assembly comprises a valve body and first and second pressure relief valves. The valve body comprises two inlets to receive output of fluid pumps, two outlets to direct fluid from the two inlets out of the valve body, respectively, and two overpressure outlets to direct fluid from the twos out of the valve body, respectively. The first and second pressure relief valves intersect the two inlets, the two outlets and the two overpressure outlets, respectively. Each pressure relief valve comprises a spring operated overpressure valve configured to open an inlet to an overpressure outlet at an overpressure condition; and a manually operated valve having a first position configured to fluidly connect an inlet to an outlet while not affecting operation of the overpressure valve, and a second position configured to fluidly connect an inlet to an overpressure outlet while opening the overpressure valve.
    Type: Application
    Filed: June 24, 2011
    Publication date: April 4, 2013
    Applicant: Graco Minnesota Inc.
    Inventors: Martin P. McCormick, Gregory A. Regenscheid
  • Publication number: 20130056666
    Abstract: Internal valve apparatus are described. An example internal valve includes a body having a valve seat disposed in a fluid flow passageway between an inlet and an outlet. A flow control member is operatively coupled to the body and movable between a first position to engage the valve seat to restrict fluid flow through the valve and a second position to move away from the valve seat to allow fluid flow through the valve. A removable actuator is coupled to the body and operatively coupled to the flow control member to cause the flow control member to move between the first and second positions. A portion of the removable actuator is cantilevered in the fluid flow passageway between the inlet and the outlet when the removable actuator is coupled to the body.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 7, 2013
    Inventors: Chun Lin, Tung Kim Nguyen, Roy Ronald Pelfrey
  • Patent number: 8371329
    Abstract: A pilot device cooperates with a gas pressure regulator suitable for use in gas distribution systems and consists of: a head with two chambers separated by a first membrane, one chamber at the gas pressure regulator outlet pressure and the other at atmospheric pressure; a body with elastic means and an axial thrust unit acting on the first membrane and cooperating with a regulation unit having at the inlet a supply pressure and at the outlet the motorization gas which is transferred to the motorization chamber of the gas pressure regulator. The pilot device features a tank having a wall with a further membrane provided with the mechanical elastic setting means. Gas is conveyed into the tank with a load pressure to modify the thrust of the elastic setting means. The device has a closed compensation chamber at atmospheric pressure, having the further membrane in common with the tank.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: February 12, 2013
    Assignee: Pietro Fiorentini, S.p.A
    Inventor: Michele Bernardi
  • Patent number: 8297306
    Abstract: A fluid regulator that has excellent flow-rate-control response for not only pressure fluctuations at the primary side but also pressure fluctuations at the secondary side and that realizes highly accurate flow-rate control is provided.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: October 30, 2012
    Assignee: Surpass Industry Co., Ltd.
    Inventor: Hiroki Igarashi
  • Patent number: 8267168
    Abstract: A flow regulator includes a flow regulating part configured to receive at an inlet a working fluid at a first pressure and to release the working fluid at an outlet at a second pressure; a slide provided inside the flow regulating part and configured to move along an axis to reduce the pressure of the working fluid; a control part attached to the flow regulating part, the control part including a chamber; a spring housing provided in the chamber and connected to the slide though a shaft, the spring housing configured to move the slide along the axis; a cap provided in the chamber and facing the spring housing, the cap being configured to have plural blind holes; and plural pins extending along the axis and attached to the spring housing, the plural pins being configured to enter the plural blind holes.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: September 18, 2012
    Assignee: Hydril USA Manufacturing LLC
    Inventors: Ryan Gustafson, Salvador Reyes, Perrin Rodriguez
  • Patent number: 8151822
    Abstract: The present invention provides an integral cantilever monitoring device for a regulator having a positionable vent port that may be disposed proximate the lowest point of the monitoring device to allow drainage of liquids accumulating within the monitoring device due to humidity and precipitation. The monitoring device may also include a connection module allowing the monitoring device to be rotated independently of the actuator and valve body of the regulator to accommodate varying installation environments. The connection module may further include an inlet port for connection to a downstream pressure feedback line when the regulator valve body and connection module portions of a primary downstream pressure feedback passage are out of alignment due to rotation of the monitoring device.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: April 10, 2012
    Assignee: Fisher Controls International LLC
    Inventor: Seth Kranz
  • Patent number: 8141580
    Abstract: A pressure reducer for fluid lines, with a sealing piston (70, 110) as stop element, with an equalization piston (20a, 190) as a means for pressure equalization, with a single-part or multi-part connecting means (20b, 90, 200) by which the sealing piston (70, 110) and the equalization piston (20a, 190) are rigidly connected with one another, with a valve seat, in conjunction of which the sealing piston (70, 110) defines a flow-through opening, against which the sealing piston (17, 110) seals when the valve is closed and which the connecting means (20b, 90, 200) penetrates, and with guide means (20c, 210) which are directly or indirectly rigidly coupled with the connecting means and guide an arrangement composed of at least the equalization piston (20a, 190), connecting means (20b, 90, 200) and sealing piston (70, 110) in each operating position, wherein the guide means (20c, 210) are arranged in the region of the valve seat between the sealing piston (70, 110) and the equalization piston (20a, 190).
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: March 27, 2012
    Assignee: Honeywell Technologies SARL
    Inventor: Uwe Pfeiffer
  • Publication number: 20110162731
    Abstract: A regulator comprised of a housing having an ingress for connection to a source of gas at a first pressure and an egress adapted for supplying gas at a lower pressure than the first pressure. A fixed member, located within the housing, separates the ingress from the egress and has at least one opening extending therethrough. A throttling tube is located in the housing and extends through the opening in the fixed member to control the flow of gas from the ingress to the egress. The throttling tube has a first end juxtaposed with a compressible disk and a second end juxtaposed with a valve seat. An actuation lever responds to a pressure within the housing to move the throttling tube into and out of engagement with the valve seat. The throttling tube responds to a force provided by the disk when it is out of engagement with valve seat.
    Type: Application
    Filed: February 11, 2010
    Publication date: July 7, 2011
    Inventor: Paul Califano
  • Patent number: 7810517
    Abstract: A multiple-input gas adjuster includes a case having a chamber therein, an input channel, an output channel communicated with the chamber, a first input bore and a second input bore communicated with the input channel and the chamber. A pressure adjusting mechanism has a film assembly, a movable shaft to be reciprocated by the film assembly, a swing device pivoted in the case with an end thereof connected to the movable shaft and an opposite end for sealing the second input bore, and a driving device received in the first input bore and connected to the movable shaft for reciprocation to seal the first input bore. High pressure gas may flows into the first and second input bores through the input channel for pressure adjusting operation. With the action of the pressure adjusting mechanism, the present invention provides a well pressure reducing and stabilizing performance.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: October 12, 2010
    Assignee: Seven Universe Industrial Co., Ltd.
    Inventors: Pao-Chi Chang, Sen-Yu Wu, Shu-Mei Liu
  • Patent number: 7757703
    Abstract: A pressure regulator is provided. In one embodiment, the pressure regulator includes a body having an internal cavity for receiving a pressurized medium and inlet and outlet ports that enable a pressurized medium to enter the internal cavity at a first pressure and exit at a second pressure. The exemplary pressure regulator also includes a control piston disposed within the internal cavity that is configured to move in response to a change in pressure within the internal cavity. The pressure regulator of this embodiment also includes a damping feature within the internal cavity that is configured to oppose the movement of the control piston. Other embodiments of pressure regulators and systems are also provided.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: July 20, 2010
    Assignee: Cameron International Corporation
    Inventors: Thomas M. Bell, Scott D. Ward
  • Patent number: 7712482
    Abstract: A pressure-reducing valve includes a housing, a pressure-reducing piston, a driving piston, and a spring mechanism. The housing is provided with a primary port and a secondary port. The pressure-reducing piston is displaceably retained in an interior of the housing. The pressure-reducing piston is displaced to control an opening degree of the primary port and configured to separate the interior of the housing into a primary-pressure space connected to the primary port and a secondary-pressure space connected to the secondary port. The driving piston is displaceably retained in the interior of the housing. The driving piston is displaced to cause the pressure-reducing piston to be displaced in association therewith and has a secondary-pressure receiving surface that receives a secondary pressure from a fluid in the secondary-pressure space. The spring mechanism is configured to exert a spring force against the secondary pressure to at least one of the pistons.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: May 11, 2010
    Assignee: Kabushiki Kaisha Kawasaki Precision Machinery
    Inventors: Kaoru Nomichi, Seiji Ishii, Makoto Ninomiya
  • Patent number: 7681588
    Abstract: Pressure regulator with partial volumes for regulating the operating pressure of fluids, in particular adhesives, at the inlet of a consuming device, the first partial volume (14) being connectable to a fluid source and the second partial volume (24) being connectable to the fluid inlet of the consuming device, wherein the second partial volume (24) has a cylindrical section(24a) of variable size, a connecting channel (22) connecting the first (14) and the second (24) partial volumes, a valve disposed in the first partial volume for opening and closing the connecting channel, said valve having an insert (23) and a movable sealing piston (32), the front end of which forms a sealing body (34) for closing the connecting channel and the rear end of which is sealed against the first partial volume.
    Type: Grant
    Filed: July 6, 2004
    Date of Patent: March 23, 2010
    Assignee: Nordson Corporation
    Inventor: Victor De Leeuw
  • Publication number: 20100037964
    Abstract: A regulating valve for regulating the flow of fluids in refrigeration systems has a valve body that has an inlet and an outlet for fluid, connected by a connecting opening, a flow control device for the opening, which is inserted in the valve body and comprises a flow control piston for the connecting opening that is driven by an electric motor along a sliding axis between an open position and a blocking position of the connecting opening. The flow control piston has openings for connection between a front face, which is directed toward the connecting opening, and a rear face thereof for balancing pressures applied by the fluid to the front face, and a head dome facing the connecting opening and forming the front face, the connection openings comprising a plurality of holes passing through the dome.
    Type: Application
    Filed: August 10, 2009
    Publication date: February 18, 2010
    Inventors: Luigi Nalini, Andrea Dalan
  • Patent number: 7650904
    Abstract: A pressure-regulating valve with an integrated pressure gauge has a body, an inlet nipple, a pressure-control device and a knob assembly. The body is tubular and has an inlet opening, an outlet and an adjustment end. The inlet nipple is connected to the inlet opening of the body and connects to a compressor. The outlet is a tube formed on the body and connects to a pneumatic tool or the like. The pressure-control device is movably placed inside the body and controls pressure of a gas flowing from the compressor to the outlet of the body. The knob assembly is rotatably mounted on the adjustment end of the body, is connected to the pressure-control device and displays and controls the pressure of the gas flowing from the compressor.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: January 26, 2010
    Inventor: Yung-Chao Huang
  • Patent number: 7520297
    Abstract: A pressure regulator is provided. In one embodiment, the pressure regulator includes a housing having a supply port for receiving a pressurized medium within the housing and an outlet port for outputting the pressurized medium to a downstream device. The housing of this embodiment also includes a vent port for venting the pressurized medium from the housing. The pressure regulator of this embodiment further includes two pistons disposed within the housing, wherein one piston controls flow of the pressurized medium through the supply port, and the other piston controls flow of the pressurized medium through the vent port, based on the level of pressure within the housing. Other embodiments of pressure regulator devices and systems are also provided.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: April 21, 2009
    Assignee: Cameron International Corporation
    Inventors: Thomas M. Bell, Scott D. Ward
  • Publication number: 20080295899
    Abstract: A compressed gas regulator preferably includes a body having a piston chamber and an output port. A regulator piston can be arranged in the piston chamber with a first surface being acted upon by pressurized gas having the output pressure. A second surface of the piston can be acted upon by a biasing member, such as a spring or spring pack. The biasing member supplies a biasing force that urges the piston toward a first position. The output pressure of the pressurized gas acting on the first surface creates a force that urges the piston toward a second position. A piston seal is preferably arranged on an end of the piston stem to seat against and seal off an inlet port when the piston is in the second position. A pressure adjustment member can be configured to adjust the amount of biasing force applied by the biasing member on the second piston surface. A plug can provide the inlet port, with a stop ring retaining the plug in place to prevent over-pressurization.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 4, 2008
    Applicant: SMART PARTS, INC.
    Inventor: Danial Scott Jones
  • Publication number: 20080105308
    Abstract: In a scuba diving first stage pressure regulator soft silicone rubber is bonded to the first stage spring to prevent water from freezing between the coils of the spring thereby assuring unrestricted movement of the spring coils even during freezing conditions. By placing a soft molded material bonded directly to the spring surface through the method of chemical and/or mechanical bonding, a soft pliable silicone rubber encapsulates or cocoons the entire area between spring coils and works as a barrier to prevent water from filling the regions between the spring coils and freezing in cold diving conditions. The thickness and volume of the pliable material silicone is not critical as long as the area between the coils is occupied with enough material to prevent ice from forming and otherwise preventing the spring from deflecting. Further, a radial clearance hole is needed to allow the piston to fit inside the silicone bonded spring hollowed center.
    Type: Application
    Filed: November 6, 2006
    Publication date: May 8, 2008
    Inventor: Dean R. Garraffa
  • Patent number: 7341073
    Abstract: A valve member (1) for a balanced pressure reducer, said valve member (1) having a wide head (1?) designed to co-operate with a valve seat (6), said valve member (1) having a central body (2) made of a material that is hard and that withstands high pressures, said central body (2) being covered at least in part with a first layer (3) of a rigid plastics material, said first layer (3) of a rigid plastics material being covered at least in part with a second layer (5) of a less rigid plastics material, no contact between the less rigid second layer (5) and the central body (2) occurring in that zone of said valve member (1) which is subjected to the high pressures.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: March 11, 2008
    Assignee: R.G. S.A.S. Di Rosario Galli & Co.
    Inventors: Giuseppe Stradella, Fabio Stradella