Limit Stop Patents (Class 251/284)
  • Patent number: 11002372
    Abstract: A diaphragm valve includes a valve seat disposed in a valve chamber in a body, an annular groove provided on the outer periphery of the valve seat, a diaphragm provided so as to be able to make contact with and leave the valve seat via a pressurizing device, and a primary-side flow path communicating the valve chamber, in which an inner diameter of a secondary-side flow path contiguously provided to the annular groove is 2.0 to 4.5 times a groove width of the annular groove, and an intersection cross-sectional area between the annular groove and the secondary-side flow path is smaller than a cross-sectional area of the secondary-side flow path and the intersection cross-sectional area is configured to be equal to or larger than 35% with respect to a sectional area of the secondary-side flow path to acquire a predetermined Cv value.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: May 11, 2021
    Assignee: KITZ SCT CORPORATION
    Inventor: Chokuto Kou
  • Patent number: 10670007
    Abstract: Compressor for generating compressed air for a commercial vehicle, having a housing with a piston chamber in a crankcase and a dead space which is configured at least in the cylinder head. The compressor has a valve device with a valve element which has an actuating section and a shut-off body for separating the dead space from the piston chamber, wherein the shut-off body can be lifted up from a valve seat in the direction of the piston chamber in order to open the valve device. The valve element is configured in one piece with the actuating section.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: June 2, 2020
    Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
    Inventors: Frederic Amiot, Jean-Baptiste Marescot, Joerg Mellar
  • Patent number: 10302019
    Abstract: Gas turbine engine compressor bleed assembly includes annular bleed plenum between annular outer and inner casings circumscribing compressor flowpath of compressor, upstream and downstream bleed ports disposed through inner casing and between compressor flowpath and plenum at upstream and downstream stages. Bleed path extends from downstream bleed port through bleed plenum and out bleed outlet disposed through outer casing. Autonomously actuated valve such as poppet valve disposed in bleed path or downstream bleed port. Autonomously actuated or poppet valve may be set to open at take-off and/or climb. Bleed outlet may be customer and domestic or engine bleed outlet disposed through outer casing and in fluid bleed air communication with bleed plenum. Another assembly may include annular forward and aft bleed outlets connected to plenums. Bleed path extends from downstream bleed port through plenums and out forward bleed outlet.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: May 28, 2019
    Assignee: General Electric Company
    Inventors: Michael Anthony Thomas, Jr., Curtis William Moeckel, David William Fasig, Carlos Ivan Flores
  • Patent number: 10221957
    Abstract: A solenoid valve has a valve member (43) which is operated between: a closed position in which the valve member abuts on a valve seat to block communication between ports (32 and 33); and an open position in which the valve member separates from the valve seat to enable communication between the ports (32 and 33). A fixed iron core (18) and a movable iron core (21), in which the movable iron core reciprocatively moves in axial directions, are disposed in a bobbin (13) of a solenoid (11). In a valve housing (12) provided with ports (31 to 33), a swing member (41) having a valve element is swingably attached, and a pivotal lever (51) is pivotally attached. The pivotal lever (51) is provided with: an actuating portion (53) abutting on one end of the swing member (41); and an effort portion (54) abutting on the tip end of the movable iron core (21), an opening/closing stroke of the valve member (43) is made larger than the moving stroke of the movable iron core (21).
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: March 5, 2019
    Assignee: Koganei Corporation
    Inventor: Masuo Ohta
  • Patent number: 9010728
    Abstract: A gate valve includes a valve body and a spindle drive. The spindle drive has, at its one end, a wedge for blocking a pipe. The spindle drive includes a motor-driven spindle, wherein, wherein the spindle is connected by way of a coupling to a shaft in an axially displaceable manner, and the shaft has the wedge at its end.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: April 21, 2015
    Assignee: Phönix Armaturen-Werke Bregel GmbH
    Inventors: Matthias Schubert, Gunter Wodara, Hannes Kellermann
  • Patent number: 8991785
    Abstract: Apparatus, methods and systems are provided for sealing the door of a slit valve. In one embodiment, the apparatus includes a seal, adapted to extend along a perimeter of a slit valve door; and a hard stop, disposed between the seal and an outer edge of the slit valve door, and adapted to extend along the length of the seal, wherein the hard stop and elastomer seal fill at least a portion of a gap between the slit valve door and an insert leading to a process chamber.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: March 31, 2015
    Assignee: Applied Materials, Inc.
    Inventors: Angela Rose Sico, Michael R. Rice, James D. Strassner
  • Patent number: 8979065
    Abstract: A piezoelectric valve has a body with an input passage and an output passage each configured to connect to a fluid flow system, a flow control member movable with respect to the valve seat between a fully open position and a closed position and a piezoelectric motor directly connected to the flow control member. The piezoelectric motor has a piezoelectric resonator in which two orthogonal vibrational modes across a length and a width of the piezoelectric resonator are excited, a working element and one or more contact sites providing frictional contact between the working element and the piezoelectric resonator. One of the working element and the piezoelectric resonator is connected to the flow control member and configured to move relative to the other of the working element and the piezoelectric resonator due to the frictional contact, thereby moving the flow control member.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: March 17, 2015
    Inventors: Valentin Zhelyaskov, Mark Oudshoorn, Serhiy Petrenko
  • Patent number: 8950729
    Abstract: Valve (1), in particular vacuum valve, having a passage opening (2) and a closure member (3), it being possible for the closure member (3) to be moved by a valve drive (4) of the valve (1) in a closing direction (5) from an open position, in which it releases the passage opening (2), into a closed position, in which it closes the passage opening (2), and in the reverse direction. The closure member (3) is arranged in the closed position between two valve seats (6, 7) which lie opposite one another and surround the passage opening (2), and a first closure member part (8) of the closure member (3) bears against a first of the valve seats (6) in the closed position and a second closure member part (9) bears against the second valve seat (7) in the closed position. The closure member parts (8, 9) are mounted such that they can be displaced relative to one another in the closing direction (5).
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: February 10, 2015
    Assignee: VAT Holding AG
    Inventors: Friedrich Geiser, Thomas Blecha
  • Patent number: 8939432
    Abstract: An expanding dual disc gate valve that can be used in applications requiring double block and bleed type systems. A stem is positioned in the center of a valve body with a first and second gate arranged on opposite side of the stem with respect to each other. The first and second gates are slidingly engaged with the stem so that the stem controls their movement between an open and a closed position with respect to an inlet and an outlet of the valve body. As the gates approach the closed position they encounter a shoulder of the valve body preventing further downward movement, whereby further force from the stem wedges the first and second gates outward to create a sealing arrangement with a seat ring of the valve body.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: January 27, 2015
    Inventor: Alfred Eng Leng Tan
  • Patent number: 8939431
    Abstract: An electromagnetic positioning device has a long stretched out anchor plunger section as well as an anchor having an anchor body section axially continuing the latter, which in order to magnetically interact with a core unit and by energizing a stationary provided coil device is movably designed relative to the latter. The core unit is designed in such a way that it at least sectionally encompasses the anchor plunger section as well as the anchor body section with an expanded diameter relative to the anchor plunger section. The core unit is a multi-part design in the axial direction with a stationary core section, an axially movable core section and a variable core gap between the stationary and movable core section, and the movable core section and anchor are designed and joined together via a driver in such a way that, in response to energization, the movable core section moves, causing the core gap to close, and the driver drives the anchor in the axial direction.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: January 27, 2015
    Assignee: ETO Magnetic GmbH
    Inventors: Thomas Schiepp, Jorg Burssner
  • Patent number: 8925576
    Abstract: The invention relates to a device (100) for actuating a process valve that has a first cylinder and a second cylinder, comprising at least one first control valve arrangement (102) that has at least a connector for a line to the first cylinder of the double-seat valve, an intake-air connector and an exhaust-air connector, and comprising a second control valve arrangement (103) that has at least a connector for a line to the second cylinder of the double-seat valve, a connector for an intake-air line and a connector for an exhaust-air line, wherein separate exhaust-air lines (104, 105) are provided for the first and the second control valve arrangement (102, 103).
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: January 6, 2015
    Assignee: APV Rosista GmbH
    Inventors: Norbert Spliethoff, Torsten Reich
  • Patent number: 8800596
    Abstract: A check valve housing is provided and includes a base having opposite sides which are configured to form linear contact surfaces with check valve flappers pivotably disposed on either side of the base, respectively, and an additional structural member having opposite sides which are configured to form additional contact surfaces with each of the check valve flappers, respectively.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: August 12, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Joshua A. Kamp, George L. Kan
  • Publication number: 20140209826
    Abstract: Provided is a configuration in which: a spool driven by an electromagnetic proportional solenoid is urged by a spool-returning spring configured to exert urging force in an opposite direction to a driving direction of the electromagnetic proportional solenoid; a mechanical stopper is disposed at the stroke end of the spool; current dither causes a control current to micro-vibrate, the control current driving the electromagnetic proportional solenoid; and the mechanical stopper includes a stopper-urging spring configured to allow the spool to vibrate owing to the current dither even when the spool is in contact with the mechanical stopper. A proportional solenoid control valve with this configuration is capable of reducing hysteresis at the stroke end of the spool by means of the current dither, and controlling the spool in a stable manner over the entire control range including the stroke end of the spool.
    Type: Application
    Filed: June 11, 2012
    Publication date: July 31, 2014
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yuko Funakubo, Noboru Ito, Masahiro Matsuo
  • Patent number: 8770545
    Abstract: A slide gate comprising: a frame assembly which defines an opening through which fluid flows; a slide plate movably mounted to the frame assembly for vertical movement relative thereto so as to selectively open and close the opening in the frame assembly; an operating mechanism for vertically moving the slide plate between its open and closed positions so as to regulate fluid flow through the opening in the frame assembly, wherein the operating mechanism comprises a threaded operating stem which is secured to the top of the slide plate and which extends through a threaded operating nut which is rotatably mounted to the frame assembly, and means for rotating the threaded operating nut so as to cause longitudinal movement of the threaded operating stem relative to the threaded operating nut, so as to raise or lower the slide plate, whereby to open or close the opening in the slide gate; and a threaded fall-protection nut disposed on the threaded operating stem in spaced relation to the threaded operating nut
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: July 8, 2014
    Assignee: Whipps, Inc.
    Inventors: George E. Whipps, Michael R. Toomey
  • Publication number: 20140084200
    Abstract: Fluid control valves having adjustable valve stem and piston assembly are described herein. An example fluid control valve includes a piston to control a flow of fluid through a valve body, a bonnet with a threaded bore coupled to a bonnet yoke to be coupled to the valve body and a housing having a first portion to pivotally mount a roller assembly to move the piston and a second elongated portion with a threaded outer surface to couple to the threaded bore of the bonnet. A valve stem moves through the housing to control the movement of the piston.
    Type: Application
    Filed: September 26, 2012
    Publication date: March 27, 2014
    Applicant: Fisher Controls International LLC
    Inventors: Richard James Anagnos, Paul A. Day, Ernest Souliere
  • Patent number: 8662468
    Abstract: A microvalve device includes a body, a valve element supported for movement relative to the body, and an actuator operatively coupled to the valve element for moving the valve element in a normal range of travel. A travel limiting structure operatively cooperates with at least one of the valve element and the actuator to effectively limit the magnitude of movement of the valve element or the actuator outside the normal range of travel to prevent failure of the body, the valve element, or the actuator due to exceeding failure stress limits. A method of forming a microvalve with such a travel limiting structure is also disclosed.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: March 4, 2014
    Assignee: DunAn Microstaq, Inc.
    Inventor: Harry Hunnicutt
  • Patent number: 8578966
    Abstract: The present invention relates generally to fluid control valves and, more particularly, to a mixing valve for use within a faucet.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: November 12, 2013
    Assignee: Masco Corporation of Indiana
    Inventors: Kurt Judson Thomas, Michael Scot Rosko
  • Patent number: 8544820
    Abstract: Biasing apparatus for use with actuators are described. A biasing apparatus for use with a piston actuator includes a first sleeve at least partially surrounded by and movably coupled to a second sleeve. Additionally, the biasing apparatus includes a stop to limit an amount of movement of the first sleeve relative to the second sleeve and a biasing element positioned between first and second ends of the respective first and second sleeves to urge the first sleeve away from the second sleeve.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: October 1, 2013
    Assignee: Fisher Controls International LLC
    Inventors: Douglas P. Gethmann, David George Halm, David Anthony Arnold
  • Patent number: 8539977
    Abstract: In order to simplify work of applying and releasing a surface pressure in a slide valve device constructed of a fixed plate, a slide plate, a seal plate, and the like, provided is a slide valve device for automatic surface pressure application and a surface pressure application method therefor, the slide valve device including: a base frame (2) including a positioning member (51) for determining an arrangement location (X) of a seal case (21) and a stopper (52) for fixing the seal case (21) at the arrangement location (X); and a slide case (4) including a pusher (53) for sliding the seal case (21) together with the slide case (4) when sliding the slide case (4) in a surface pressure application direction.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: September 24, 2013
    Assignee: Shinagawa Refractories Co., Ltd.
    Inventors: Kenji Yamamoto, Mototsugu Osada, Atsushi Takata
  • Patent number: 8469337
    Abstract: A faucet, which includes a seat defining a bore, and a one-piece construction metallic valve stem movable toward and away from the seat, the improvement comprising retainer structure associated with a lower end portion of the structure defining a head to locate in axial alignment with the bore, and a shank, and a non-metallic elastomeric O-ring installed on the shank, the O-ring sized to fit the bore between the head and stem structure above the shank, the O-ring received in the bore and captivated to directly seal off between the shank and the bore, seating with the bore, and a second O-ring carried by the stem and sealing off between the stem and a second bore defined by a bonnet as the first defined O-ring is moved by the stem toward and away from the first defined bore.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: June 25, 2013
    Inventor: Herbert W. Hoeptner, III
  • 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
  • Patent number: 8418723
    Abstract: An electromagnetic proportional flow rate control valve capable of performing precise flow rate control in a low flow rate side of an operating region is provided. In an electromagnetic proportional flow rate control valve 32, in which a valve member 2 is driven in a valve closing direction in accordance with the increase in a driving current I of a solenoid coil 15, a solenoid driving force F is set such that it decreases accompanying the displacement of the valve member 2 in the valve closing direction with respect to an identical driving current in the solenoid coil 15. Thus, an amount of change in an area of a valve opening with respect to unit changes in the driving current I becomes smaller in a region at which the stroke is small compared to a case of having flat characteristics, whereby the flow rate control precision in the low flow rate region can be improved.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: April 16, 2013
    Assignee: Kayaba Industry Co., Ltd.
    Inventors: Hideki Tsuchiya, Yoshiharu Miya
  • Patent number: 8382066
    Abstract: Between a driving base operated by an air cylinder and a lever member fixed to a valve shaft integral with a valve plate, a connecting mechanism for connecting the driving base and a lever member, capable of displacement, and a cam mechanism for tilting the lever member are interposed, and a stopper mechanism for stopping the lever member at an opposing position of the valve plate or a full-open position, and after the lever member is stopped by the stopper mechanism at the opposing position or the full-open position, the lever member is tilted by the cam mechanism so as to incline the valve plate and to press a valve seal to a valve seat portion or a wall face in the periphery of an opening.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: February 26, 2013
    Assignee: SMC Corporation
    Inventors: Takashi Nagao, Hiroshi Ogawa, Hiromi Shimoda
  • Patent number: 8347917
    Abstract: In a four-way valve having a simple structure, even if a high-temperature refrigerant and a low-temperature refrigerant flow close to each other, heat loss between both refrigerants is suppressed. The valve comprises a housing member including a valve chamber, a valve seat including a bearing surface portion located in the valve chamber, a first channel through which a high-temperature fluid flows and a second channel through which a low-temperature fluid flows at a predetermined time, including openings adjacent to each other at a bearing surface portion of the valve seat, passing through the valve seat and extending outside of the valve chamber, and a valve element moving to the bearing surface portion of the valve seat. A thermal resistor portion suppressing heat transfer between these channels is located near the openings, between the first and second channels.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: January 8, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Susumu Yoshimura, Shinichi Wakamoto, Shinji Nakashima, Takashi Sekiya
  • Patent number: 8282390
    Abstract: A cooking appliance equipped with at least one regulating valve having a rotary regulator organ. The rotary regulator organ has an actuating shaft a plurality of peripheral openings adapted for regulating a flow of gas through the regulating valve. In a first angular position the rotary regulator organ is adapted to supply a constant flow Qmin of a first type of fuel through a first peripheral opening. In a second angular position, successive to the first angular position, the rotary regulator organ is adapted to supply a constant flow Qmin of a second type of fuel through a second peripheral opening. In one implementation a feature that rotates with the actuating shaft is adapted to engage a feature on the cooking appliance to limit the rotation of the rotary regulator organ to the first angular position.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: October 9, 2012
    Assignee: Coprecitec, S.L.
    Inventor: Iñigo Albizuri
  • Patent number: 8281810
    Abstract: A dry valve is provided for a sprinkler system, including a housing including a valve body having an inlet end and a valve cover having an outlet end. A prime chamber housing is disposed within the housing and defines a prime chamber. A prime piston is disposed within the prime chamber and is movable between a closed position seated against a valve seat and an open position received within the prime chamber. A check valve diaphragm assembly is disposed within the housing and disposed against the prime chamber housing in a closed position and spaced from the prime chamber housing in an open position.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: October 9, 2012
    Assignee: The Viking Corporation
    Inventors: Shawn J. Feenstra, Vinh B. Hoa
  • Patent number: 8261625
    Abstract: A stepper actuator including a brake drum and a central gear mechanically connected thereto. The brake drum and the central gear are selectively rotatable in opposing first and second rotational directions. First and second actuation members are moveable through first and second actuation cycles to incrementally rotate the central gear. The actuation members engage and subsequently disengage the central gear as they move through their actuation cycles. The actuation members are configured to rotate the central gear during engagement therewith. A braking assembly is operatively connected to the first and second actuation members and is frictionally engaged to the brake drum to prevent rotation of the brake drum when the first and second actuation members are each in a retracted position as occurs when neither is moving through a corresponding actuation cycle.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: September 11, 2012
    Assignee: STI srl
    Inventors: Michele Picerno, Flavio Tondolo
  • Publication number: 20120011858
    Abstract: The present invention discloses a displacer valve for a cryogenic refrigerator, which is mounted on one circular surface of a displacer cover by a bolt to open and close a hole formed in the surface of the displacer cover. The displacer valve includes a rotation preventing guide fastened to an eccentric portion of the displacer cover by the bolt to prevent the displacer valve from rotating around the bolt. Therefore, the displacer valve does not rotate around the bolt but is fixed in a proper position, so that its operational reliability can be ensured.
    Type: Application
    Filed: December 2, 2010
    Publication date: January 19, 2012
    Inventors: Song Oun Park, Won Hyun Jung
  • Publication number: 20110297867
    Abstract: A flow valve includes a control valve having a movable body, a stop valve having a movable body; and a valve seat having a facing surface that contacts at least a portion of one of the control valve body or the stop valve body when the flow valve is in a closed position, the facing surface of the valve seat being configured to merge with a rear portion of the valve seat at a tip portion, the facing surface of the valve seat having an aerodynamic profile that provides for a guided flow in a flow direction through the flow valve.
    Type: Application
    Filed: June 7, 2010
    Publication date: December 8, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Abhishek Chowdhury, Vamshidhar Done, Vishal Girishchandra Shah, Hayagreeva Rao Karra Venkata
  • Patent number: 8033525
    Abstract: A control valve having an external valve trim adjustor is provided. The control valve comprises a valve shaft comprising a contact member extending in a direction transverse to the valve shaft, a stationary valve cap adapted to receive the valve shaft, an adjustment member coupled to the valve cap, and a stop plate coupled to the contact member and threadedly coupled to the adjustment member, the stop plate positioned at least partially between the adjustment member and the contact member and adapted to position the contact member away from the valve cap in response to manipulation of the adjustment member.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: October 11, 2011
    Assignee: Honeywell International Inc.
    Inventors: Paul Wingett, Steve Abel, Eric J. Ekstrom
  • Publication number: 20110127455
    Abstract: A microvalve device includes a body, a valve element supported for movement relative to the body, and an actuator operatively coupled to the valve element for moving the valve element in a normal range of travel. A travel limiting structure operatively cooperates with at least one of the valve element and the actuator to effectively limit the magnitude of movement of the valve element or the actuator outside the normal range of travel to prevent failure of the body, the valve element, or the actuator due to exceeding failure stress limits. A method of forming a microvalve with such a travel limiting structure is also disclosed.
    Type: Application
    Filed: July 9, 2009
    Publication date: June 2, 2011
    Applicant: MICROSTAQ, INC.
    Inventor: Harry Hunnicutt
  • Patent number: 7828265
    Abstract: A valve is provided that includes a housing having an inlet, an outlet, and a valve seat therebetween. The valve includes a valve member movable towards the valve seat towards engagement with a stop, and away from the valve seat when the solenoid is energized. The valve member has an opening in which a valve element is received. A spring urges the valve member and valve element towards the valve seat, and a solenoid moves the valve member away from the valve seat. The spring biases the valve member to a closed position, in which the valve element engages the valve seat, and the valve member engages a stop that prevents the valve member from impacting against the valve element that is seated against the valve seat. The solenoid when energized causes the valve member to move upward and pull the valve element away from the valve seat.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: November 9, 2010
    Assignee: Emerson Electric Co.
    Inventors: Gregory E. Sisk, Tom Farace
  • Publication number: 20100181514
    Abstract: To provide a motor-driven valve with a small number of parts, with excellent assemblage, capable of maintaining a large valve port diameter even downsized, and to prevent deterioration of housing environment due to sound caused by the impact and shortened life that are generated by collisions of closing limit stopper parts.
    Type: Application
    Filed: December 9, 2009
    Publication date: July 22, 2010
    Inventor: Tomoari Ohuchi
  • Publication number: 20100170476
    Abstract: The invention relates to an injection device for injecting high-pressure fuel into the combustion chamber of an internal combustion engine, said device comprising an injection valve assigned to a discrete reservoir chamber (68). A non-return valve (74) operates between said chamber and the high-pressure supply line (44) and the filter (72), which is preferably designed as an edge filter (72?), forms a stop (106) for limiting the opening motion of the valve member (100) that is preferably designed as a valve member plate (100?).
    Type: Application
    Filed: September 5, 2008
    Publication date: July 8, 2010
    Applicant: GANSER-HYDROMAG AG
    Inventors: Marco Ganser, Ulrich Moser
  • Patent number: 7744062
    Abstract: Apparatus to vary the effective spring rate of diaphragm actuators are described. An example spring assembly for use in a diaphragm actuator includes a first spring operatively coupled to a diaphragm plate and an actuator stem, and a second spring operatively coupled to the actuator stem and configured to be serially operative with the first spring. Additionally, a movable spring seat is disposed between the first and second springs.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: June 29, 2010
    Assignee: Fisher Controls International LLC
    Inventor: Paul Russell Dalluge
  • Patent number: 7637474
    Abstract: A hydraulic blowout preventer operator comprises a piston rod having one end coupled to a closure member. The operator further comprises an operator housing having one end coupled to a bonnet and a second end coupled to a head. The piston rod extends through the bonnet into the operator housing where it is coupled to a piston that is disposed within the operator housing. The piston comprises a body and a flange. A flange seal is disposed on the flange and is sealingly engaged with the operator housing. A body seal is disposed on the body and is sealingly engaged with the operator housing. The flange seal has a sealing diameter greater than a sealing diameter of the body seal.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: December 29, 2009
    Assignee: Cameron International Corporation
    Inventors: Melvyn F. Whitby, John T. Mangan, David J. McWhorter
  • Publication number: 20090194721
    Abstract: Provided is a needle valve in which a gap between a valve casing and a needle is reliably sealed and an origin of the needle can be readily obtained with high precision. A needle (6) is screwed into a cylindrical rotor (44) of a stepping motor (7) so as to be retractable, and a rotation regulating member (47) prevents the needle (6) from rotating together with the rotor (44). Accordingly, in a case of driving the motor (7) to rotate the rotor (44), the needle (6) vertically moves without rotating. A lower limit sensor (61) and an upper limit sensor (60) detects a detection target piece (49) provided to the rotation regulating member (47), so a lower limit position and an upper limit position of the needle (6) are obtained. The motor (7) is controlled such that, after the motor (7) is driven until the lower limit sensor (61) detects the detection target piece (49), an origin sensor (71) monitors an origin detection plate (62) so as to stop at a predetermined rotation stop position.
    Type: Application
    Filed: September 11, 2007
    Publication date: August 6, 2009
    Inventors: Shigehiro Watanabe, Tomohisa Takeda, Keiichi Fujita
  • Publication number: 20090108223
    Abstract: A temperature limit stop assembly for a mixing valve including a stop surface supported by a stem and a hot water stop shoulder supported by a stop member and engagable with the stop surface of the stem to limit rotational movement of a valve plate.
    Type: Application
    Filed: October 25, 2007
    Publication date: April 30, 2009
    Inventors: Mark Alan Deutsch, Cameron Dante Martin
  • Patent number: 7441746
    Abstract: An injection valve includes a housing that movably accommodates a needle. A movable core is axially movable together with the needle in the housing. A stationary core is fixed in the housing for forming a magnetic circuit together with the movable core. At least one of the movable core and the stationary core has an end that has an annular first protrusion protruding toward an end of an other of the movable core and the stationary core. At least one of the movable core and the stationary core has an end that has an annular second protrusion protruding toward an end of an other of the movable core and the stationary core. The first protrusion is substantially coaxial with respect to the second protrusion.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: October 28, 2008
    Assignee: Denso Corporation
    Inventor: Kouichi Sugiyama
  • Publication number: 20080203347
    Abstract: A control valve for a gas direct injection fuel delivery system is provided. The control valve comprises a valve body, a poppet movably received within the valve body, and an actuator disposed within the valve body. The valve body has a first fluid path, a second fluid path, and a valve seat providing fluid communication therebetween. The poppet is capable of movement between a first position and a second position. When disposed in the first position, the poppet seals the valve seat to block fluid communication between the first fluid path and the second fluid path. The poppet permits fluid communication between the first fluid path and the second fluid path as the poppet moves from the first position to the second position. The poppet is configured so that a pressure in the first fluid path produces a force that tends to move the poppet toward the second position and a pressure in the second fluid path produces a force that tends to move the poppet toward the first position.
    Type: Application
    Filed: February 28, 2007
    Publication date: August 28, 2008
    Inventors: Santos Burrola, Alejandro Moreno
  • Patent number: 7387095
    Abstract: Hydraulic valve actuation systems and methods to provide variable lift for one or more engine air valves by way of a variable position hard stop. Various embodiments are disclosed, including embodiments controlling lift by providing a choice of two different fixed stops, three different fixed stops, stops continuously variable throughout a range of lifts, and a fixed stop and stops continuously variable throughout a range of lifts. The valves controlled by a variable position hard stop may be a single engine intake or exhaust valve, or multiple valves of any number, and of either intake or exhaust valves or both, or of one intake or one exhaust valve for one or more cylinders in engines having more than one intake or exhaust valve per cylinder. Dashpot deceleration of engine valve velocity on opening to the hard stop and on engine valve closure is disclosed, as are other aspects and embodiments of the invention.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: June 17, 2008
    Assignee: Sturman Industries, Inc.
    Inventors: Guy Robert Babbitt, Miguel Angelo Raimao, Charles Conrad Klose, Jeffrey Allen Rogers, Oded Eddie Sturman
  • Patent number: 7367353
    Abstract: A combination check valve and pressure relief valve is provided for use in regulating the flow of fluid between a first fluid side and a second fluid side. The valve may include a valve body, a valve insert positioned within an aperture of the valve body, a check poppet attached to the valve insert, and a check spring positioned between the valve insert and the valve body. In addition, a relief spring and a relief poppet may be positioned within a cavity formed by the valve insert and secured in position by the check poppet. The combination of the valve insert and the check poppet is adapted to move relative to the valve body and against the force of the check spring to permit fluid to pass from the first fluid side to the second fluid side, and the relief poppet is adapted to move relative to the check poppet against the force of the relief spring to allow fluid to pass from the second fluid side to the first fluid side.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: May 6, 2008
    Assignee: Hydro-Gear Limited Partnership
    Inventors: Thomas J. Langenfeld, Matthew C. Roney, Robert E. Trimble
  • Patent number: 7367543
    Abstract: A solenoid valve is provided that comprises a valve body having an inlet and an outlet, and a movable member for moving a valve element away from a valve seat to open the valve. The moveable member engages and moves the valve element away from the seat to an open position when the solenoid is actuated. When the solenoid is not actuated, a biasing spring moves the moveable member to disengage from the valve element, which returns to a closed position. The moveable member does not transfer any impact force to the valve element on closure of the valve member, so that the valve may be operated a significant number of cycles without failure.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: May 6, 2008
    Assignee: Emerson Electric Co.
    Inventor: Gregory E. Sisk
  • Patent number: 7337802
    Abstract: A pressure reducing valve applied to products such as a water purifier, a bidet, a boiler, an instant water heater, and so on is provided. The pressure reducing valve has advantages of being capable of increasing productivity and reducing manufacturing cost of products by omitting a diaphragm, a metal poppet valve, and other parts which are essential in the conventional art. In addition, it is possible to prevent leakage of fluid from a peripheral connection part of the pressure reducing valve, and damage of the connection part due to high-pressure operation of the pressure reducing valve, thereby extending the lifespan of products.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: March 4, 2008
    Assignee: Novita Co., Ltd.
    Inventor: Sun-Dug Kwon
  • Patent number: 7331564
    Abstract: A solenoid-operated valve includes a valve body defining a valving bore for providing a path of communication between axially spaced inlet and outlet ports. A solenoid assembly is attached to the valve body and includes an inductor coil, a fixed flux guide and an armature, which is movable axially between a first position and a second position in response to electrical energization of the inductor coil. A valve member is disposed within the valving bore intermediate the inlet and outlet ports. An elongated control member interconnects the armature and the valve member for conjoined axial movement. A generally annular valve seat is disposed within the valving bore between the inlet port and valve member, the valve seat including a central through bore through which the control member extends.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: February 19, 2008
    Assignee: Delphi Technologies, Inc.
    Inventors: Alejandro Moreno, Viswanathan Subramanian, Santos Burrola
  • Patent number: 7322558
    Abstract: A non-refillable valve is provided that allows for an initial filling of a container, but prevents subsequent refilling of the container. In one embodiment, the valve includes a valve core having a retaining means for maintaining the valve core in an open or non-sealing position to allow flow through the valve and filling of the container. The valve core may then be advanced to seal the container, and subsequently selectively operated to discharge the container as desired. Further refilling of the container is prevented by the force of fluid reentering the valve which forces the valve core to its seated engagement with the valve seat.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: January 29, 2008
    Assignee: Discount Refrigerants, Inc.
    Inventor: Jing Jie Cong
  • Publication number: 20080001112
    Abstract: The faucet valve structure of two way automatic repositioning function includes a base ring, resilient spring, activating ring, and linking component. The base ring has a protruding block placed thereon. The resilient spring is placed on the base ring, which includes a first and second effector. The activating ring is placed on the resilient spring, which includes a first support that corresponds to the protruding block and a second support that corresponds to the second effector. The linking component is placed on the top end of the rotary base, and it has a crosswise protruding extension. When the user is using the faucet, whether it is on hot water mode or cold water mode, the brake valve shaft can be repositioned to the middle position, so that when the user is turning on the water regardless of warm or cold, it ensures safety from a burn injury.
    Type: Application
    Filed: June 19, 2006
    Publication date: January 3, 2008
    Applicant: KUCHING INTERNATIONAL, Ltd.
    Inventor: Mei-Li Chen
  • Patent number: 7275732
    Abstract: A valve housing has a bottomed hollow cylindrical main body and a boss projecting from and smaller in diameter than the main body. The main body has a tapered surface circumferentially along a joint where a side wall and a bottom wall of the main body are joined to each other. A plurality of inlet ports are defined in the tapered surface. The boss has an outlet port for discharging a fluid introduced into the main body. When a valve head coupled to the movable member is displaced and a seating ridge of a resilient member mounted on the valve head is seated on a valve seat surface, the inlet ports and the outlet port are brought out of fluid communication with each other.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: October 2, 2007
    Assignee: Keihin Corporation
    Inventors: Takahide Kato, Kouetsu Hikichi, Hiroto Ohmori, Masakazu Murai, Kuri Kasuya, Hiroyasu Ozaki
  • Patent number: 7258134
    Abstract: A combination check valve and pressure rise rate valve is provided for regulating the flow of fluid between a first fluid side and a second fluid side. The valve may include a valve body, a valve insert positioned within an aperture of the valve body, and a check poppet attached to the valve insert. In addition, the valve may include a cylinder positioned within the valve insert, a piston slidably positioned within the cylinder, a spring positioned between the cylinder and the valve insert, and an accumulator formed between the cylinder and the piston.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: August 21, 2007
    Assignee: Hydro-Gear Limited Partnership
    Inventors: Thomas J. Langenfeld, Matthew C. Roney
  • Patent number: 7219684
    Abstract: A saddle tee assembly for use with an irrigation line. The saddle tee assembly generally includes a collar portion having a bore therethrough; a strap portion for securing the collar to an irrigation line; and a tool having a passage therethrough with an opening in fluid communication with the passage. The tool may be receivable in the bore for puncturing the irrigation line. In a preferred form, the saddle tee assembly also includes an anti-rotation interface between the collar portion and the tool. The anti-rotation interface includes a first stop on the collar portion and corresponding second stops on the tool. The first and second stops being engageable to align a received tool in a predetermined orientation and restrict unintentional rotation of the tool.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: May 22, 2007
    Assignee: Rain Bird Corporation
    Inventors: Rajiv Dabir, Kevin Girard O'Brien