With Seal Patents (Class 251/363)
  • Patent number: 10132272
    Abstract: A carburetor for a gas powered internal combustion engine having a plurality of pressure reducing stages for reducing the pressure of the gas phase in a liquified petroleum gas storage bottle prior to the mixing of the gas phase of the liquified petroleum gas with ambient air.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: November 20, 2018
    Inventor: Bernardo J. Herzer
  • Patent number: 9968962
    Abstract: Provided are methods and systems for applying materials at interface areas formed by fasteners and parts. Specifically, a material is delivered to an interface area such that at least a portion of a fastener remains free from this material. The interface area may be sealed such that the material is contained within that area. As such, a controlled amount of the material is dispensed in a precise location. An applicator used for this process may include a housing and inner guide slidably disposed within this housing. The material may be delivered through an annular flow channel between the housing and inner guide. The inner guide may be sealed against and, in some embodiments, centered with respect to the fastener. The housing may be sealed with respect to the part and, in some embodiments, may be rotated with respect to the part to redistribute the material at the interface area.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: May 15, 2018
    Assignee: The Boeing Company
    Inventors: Jake B. Weinmann, Raul Tomuta, John W. Pringle, IV, Angelica Davancens, Martin Hanna Guirguis, Frederick Brian Frontiera
  • Patent number: 9310811
    Abstract: A regulator comprises a regulator valve and an actuator. The actuator is coupled to the regulator valve and comprises a control element for controlling the flow of fluid through the regulator valve. The regulator valve is equipped with a self-aligning valve port that includes a retaining portion, a biased portion disposed within the retaining portion, and a biasing member disposed between the retaining portion and the biased portion. The self-aligning valve port advantageously automatically adjusts to achieve sealed engagement with the control element of the actuator, thereby improving regulator performance.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: April 12, 2016
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventor: Biao Zhou
  • Patent number: 9200718
    Abstract: An air valve includes a valve body having an inner surface and an outer surface, the inner surface and the outer surface defining an inlet and an outlet; a seat mounted within the valve body and having an upper surface and a lower surface, the upper surface facing the outlet of the valve body, the upper surface and the lower surface defining a bore extending between the upper surface and the lower surface, the upper surface further defining a first sealing ridge and a second sealing ridge; and a float moveable within the valve body and engageable with the bore of the seat.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: December 1, 2015
    Assignee: Mueller International, LLC
    Inventors: Sean A. Cardia, Timothy Q. Fallon
  • Patent number: 9133949
    Abstract: A valve device includes a valve body and a valve seat body. The valve seat body has a thick cylindrical shape extending in an axis line direction. The valve seat body includes a seal groove on an outer periphery thereof, the seal groove extending in a circumferential direction. The valve seat body includes a large-diameter portion and a small-diameter portion on an inner periphery thereof, the large-diameter and small-diameter portions connected to each other in the axis line direction. The valve seat body includes a valve seat portion between the large-diameter and small-diameter portions, the valve body being seated on the valve seat portion. The position of the seal groove in the axis line direction coincides with the position of the valve seat portion in the axis line direction or is located on a high-pressure side of the position of the valve seat portion in the axis line direction.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: September 15, 2015
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Yutaka Suzuki, Kaoru Nomichi, Makoto Ninomiya
  • Patent number: 8978695
    Abstract: A check valve assembly has a body having a central cavity intersected by upstream and downstream flow passages. A seat is secured by a threaded engagement in the upstream flow passage. An access bore intersects the cavity and has a support shoulder formed in it. A holder is supported on the support shoulder. A flapper is pivotally secured to the holder and located in the cavity for movement between an open position and a closed position blocking flow through the seat. A straight edge portion in the access bore engages a straight edge portion of the holder to prevent rotation of the holder. A fastener extends through a hole in the support shoulder into engagement with the seat to prevent rotation of the seat.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: March 17, 2015
    Assignee: S.P.M. Flow Control, Inc.
    Inventors: Brian Witkowski, Nuder Said
  • Patent number: 8894036
    Abstract: A hydraulic control valve actuated by a diaphragm's integral spring whose thicker part acts with greater force to close the diaphragm and plug unit of the valve and whose thinner part may complete the closing motion so that the integral spring may weaken faster than linearly in relation to displacement of the diaphragm and plug unit. A snap seat supporting the plug may include a seat portion and a grip skirt portion integrally joined at an acute angle. A bracket and sliding guide may guide a helical rotor touching an indicator. Movement of the diaphragm and plug unit may rotate the helical rotor and the indicator without the indicator rising out of the valve. The cover may have an internal control passage in communication with a base of the valve to allow the cover to be installed horizontally and vertically conveniently and without disconnecting the control tubing above the valve.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: November 25, 2014
    Assignee: Bermad CS Ltd.
    Inventor: Zvi Weingarten
  • Publication number: 20140332707
    Abstract: A valve has a housing defining an inlet and an outlet and a cavity therebetween which receives a valve seat. The valve seat defines a slot which receives a gate. The valve seat is sealingly engaged with the housing, the gate sealingly engages the valve seat and is movable within the slot between an open and a closed position using an actuator. An opening in the housing provides access to the cavity. The valve seat may be removed from the housing through the opening by attaching the valve seat to the gate, thereby attaching the valve seat to the actuator, and withdrawing the gate from the housing using the actuator.
    Type: Application
    Filed: May 6, 2014
    Publication date: November 13, 2014
    Inventors: William J. Reilly, Lawrence W. Thau, JR., Michael Davis, Michael Prince
  • Patent number: 8875650
    Abstract: A valve seat assembly includes a gasket retainer comprising an outer wall, an inner wall, an upper face extending between the outer and inner walls, and a lower face extending between the outer and inner walls. The inner wall defines an insert receiving bore extending from the upper face inwardly toward the lower face to a recess that receives a gasket. A gasket is located in the recess. A retainer insert is located in the insert receiving bore that applies a compressive force to the gasket.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: November 4, 2014
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: William Leonard Huddleston, Mark E. Neufelder
  • Patent number: 8814138
    Abstract: A seal used in a valve includes a ring-shaped cartridge. The cartridge has a first portion and a second portion. The first and second portions hold a sealing portion, and the first and second portions have respective first and second curved surfaces adjacent to a sealing surface of the sealing portion. Radii of curvature of the curved surfaces enable an initial point of contact between a flow control member and the cartridge to be on the sealing surface when the flow control member moves to a closed position.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: August 26, 2014
    Assignee: Fisher Controls International LLC
    Inventor: Wade Jonathon Helfer
  • Patent number: 8813771
    Abstract: A gate valve for controlling the flow of pressurized fluid having a dynamically-energized seal between a seat ring and a valve body. The dynamically-energized seal may be located in an annular groove defined in a flange sealing face of the seat ring to seal against an annular shoulder sealing face of the valve body. A plurality of fasteners may bring the flange sealing face of the seat ring to a mechanical stop against the shoulder sealing face of the valve body and dynamically energize the dynamically-energized seal. An obturator may engage and disengage the seat ring to control flow through the gate valve.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: August 26, 2014
    Assignee: Quantum Supply Ltd.
    Inventors: Stephen E. Rayment, Simon A. R. Copeland
  • Patent number: 8800961
    Abstract: A fluid control electromagnetic valve includes a fixed core, a movable valving element, a resin body, a valve seat member, a first sealing member, and a second sealing member. The valve seat member is formed from a material having a smaller linear expansion coefficient than the resin body. The first sealing member is accommodated in the resin body in an elastic compression state to seal a fluid passage and is positioned around the fixed core. The second sealing member is accommodated in the resin body in an elastic compression state to seal the fluid passage. The valve seat member is clamped between the second sealing member and the first sealing member in an axial direction. Elastic restoring force applied by the second sealing member to the valve seat member is larger than elastic restoring force applied by the first sealing member to the valve seat member.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: August 12, 2014
    Assignee: Denso Corporation
    Inventor: Yuichiro Miura
  • Patent number: 8770442
    Abstract: An O-ring retainer is disclosed that is integral with a valve stem of a valve. The valve is intended to move in a valve chamber, which valve chamber has a fluid inlet and a fluid outlet. When manually actuated, the valve moves between a first position, where it is seated against walls of the valve chamber and prevents flow through the chamber, and a second unseated position where it allows flow of the fluid through the chamber between the inlet and the outlet. An O-ring, used in conjunction with the valve and the valve chamber, is maintained in place by an outward projection from the valve stem, which projection is located just below the normally seated O-ring. Thus, if the O-ring becomes unseated, the projection, upon movement of the valve towards the seated position, bumps the O-ring back into its normal position.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: July 8, 2014
    Assignee: Schroeder Industries, Inc.
    Inventors: David Santy, A. A. Jud Schroeder
  • Patent number: 8746654
    Abstract: Tunable fluid end embodiments comprise a family, each family member comprising a pump housing with at least one installed tunable component chosen from: tunable valve assemblies, tunable valve seats, tunable radial arrays and/or tunable plunger seals. For example, a tunable valve assembly or tunable radial array selectively attenuates valve-generated vibration at its source, thus reducing the likelihood of fluid end failures associated with fatigue cracking and/or corrosion fatigue. Adding tunable valve seats and/or tunable plunger seals to a fluid end facilitates optimal damping and/or selective attenuation of vibration at one or more predetermined (and frequently localized) fluid end resonant frequencies. Thus, the likelihood of exciting destructive resonances in a pump's fluid end housing is further reduced.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: June 10, 2014
    Inventors: Dennis W. Gilstad, Barbara C. Gilstad
  • Patent number: 8720857
    Abstract: Tunable fluid end embodiments comprise a family, each family member comprising a pump housing with at least one installed tunable component chosen from: tunable valve assemblies, tunable valve seats, tunable radial arrays and/or tunable plunger seals. For example, a tunable valve assembly or tunable radial array selectively attenuates valve-generated vibration at its source, thus reducing the likelihood of fluid end failures associated with fatigue cracking and/or corrosion fatigue. Adding tunable valve seats and/or tunable plunger seals to a fluid end facilitates optimal damping and/or selective attenuation of vibration at one or more predetermined (and frequently localized) fluid end resonant frequencies. Thus, the likelihood of exciting destructive resonances in a pump's fluid end housing is further reduced.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: May 13, 2014
    Inventors: Dennis W. Gilstad, Barbara C. Gilstad
  • Patent number: 8708306
    Abstract: A tunable valve assembly reduces valve-generated vibration. One embodiment comprises a valve body and valve seat having substantially collinear longitudinal axes. A rebound characteristic frequency is associated with rebound of the elastic valve body base plate from forceful contact with the valve seat. A central cavity in the valve body encloses a spring-mass damper optionally immersed in a dilatant liquid and having a damper resonant frequency approximating a pump housing resonance. A lateral support assembly adjustably secured to the valve seat has a support resonant frequency designed in conjunction with the rebound characteristic frequency and the damper resonant frequency. Combined hysteresis heat loss associated with the above three vibration frequencies is reflected in lower closing energy impulse amplitude and damping of associated vibrations.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: April 29, 2014
    Inventors: Barbara C. Gilstad, Dennis W. Gilstad
  • Patent number: 8662475
    Abstract: A ball valve gasket structure includes a housing base having an accommodating area and a position limit area; a leakproof washer installed in the position limit area; a ring-shaped slide unit having a ring-shaped steel plate and a ring-shaped graphite plate installed in the accommodating area, and both top and bottom sides are ring-shaped steel plates of the slide unit, and the ring-shaped steel plate at the bottom side abuts the bottom of the accommodating area, and the other ring-shaped slide unit has an arc surface portion disposed at the internal periphery; and a cover coupled to the housing base for sealing the slide unit. The ball valve gasket structure can be used together with a ball valve to achieve the slide assisting effect, improving service life, and facilitating installation and disassembly.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: March 4, 2014
    Assignee: Lan Shiuon PTFE Industry Co., Ltd.
    Inventor: Kuo-Yu Hung
  • Patent number: 8596610
    Abstract: A universal control valve may use two different seat ring types including a threaded seat ring or a clamped seat ring. The valve includes a valve body, a cage mounting space enclosed by a bonnet and sized to receive two different valve cage types, and a seat ring mounting location including, an annular shoulder, a radiused projection, and a threaded portion. The threaded portion receives a threaded seat ring and the radiused projection forms a seal, while the shoulder supports a mounting flange of a clamped seat ring and forms a seal. Accordingly, the seat ring mounting location can receive a selected one of the two different seat ring types.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: December 3, 2013
    Assignee: Fisher Controls International LLC
    Inventor: William Everett Wears
  • Patent number: 8480057
    Abstract: In a microvalve, a valve seat includes a cylinder portion that includes a through hole in a central portion thereof, and a flange portion that is provided around an axial end of the cylinder portion and that has a thick seal portion on a periphery of the flange portion. The cylinder portion is disposed in an opening of a valve housing with a gap ? therebetween, and the seal portion is able to move away from the seal surface provided around the opening and away from the displacement member. In an open state, at least one of a flow path through the through hole and a flow path through the gap between the cylinder portion and the opening is open, and in a closed state, the seal portion is sandwiched between the displacement member and the seal surface.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: July 9, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yuki Takahashi, Kenichi Kontani
  • Patent number: 8348236
    Abstract: A valve is disclosed and can include a valve body having a central bore for passage of fluid there through and a longitudinal axis. The valve can also include a seal installed within the valve body along the central bore. The seal can include a first seal member having an annular ring portion and a hub portion extending from the annular ring portion. The seal can also include a second seal member including an annular ring configured to engage a distal end of the hub portion and create a sealing engagement between the hub portion and the annular ring when a compressive force is applied to the first and the second seal members.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: January 8, 2013
    Assignees: Saint-Gobain Performance Plastics Corporation, Saint-Gobain Performance Plastics France
    Inventors: Yves Stefani, Roland Lucotte
  • Patent number: 8342202
    Abstract: A pipe coupling member for high-pressure fluid such as liquefied hydrogen includes a seal ring having a highly effective sealing function to prevent leakage of the fluid. The seal ring (72) is set in a seal ring setting space (39) defined by a second radial surface (36) and a seal ring setting surface (38) of a first tubular member (20), a forward end surface of a second tubular member (22), and the outer peripheral surface of a valve seat member (24). A forward end portion of the second tubular member (22) is provided with a communication hole (84) radially penetrating the forward end portion. The pressure of the high-pressure fluid on the downstream side of a valve seat surface (52) causes a fluid path in the second tubular member to be communicated with the sealing ring setting space (39) via the communication hole (84) and via a gap between the seal ring setting surface (38) and the outer peripheral surface of the forward end portion of the second tubular member.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: January 1, 2013
    Assignees: Nitto Kohki Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Takuya Nishio, Kunihiko Goto, Kazunori Aoki, Osamu Yamamoto, Kazuyoshi Tashiro, Goro Suzuki, Shinichi Nomura, Kosei Yoshida
  • Patent number: 8328163
    Abstract: A vacuum valve with a seating ring having a generally rectangular cross section. With respect to rectangular edges lying diametrically opposite one another, radii of curvature are arranged in these edges, which radii of curvature come into sealing engagement with sealing seats arranged lying opposite one another on the housing side and the disk side. The sealing surfaces on the sealing seats have approximately the same cone angle. The sealing ring is easy to produce, has a small rolling path and there is no danger of damage to the valve seats by the sealing ring.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: December 11, 2012
    Assignee: VSE Vacuum Technology
    Inventors: Hubert Boesch, Stefan Boesch
  • Patent number: 8312897
    Abstract: A diverter valve is disclosed for use in a shower mixer valve or the like. It is constructed to reduce the force needed to be applied by the bather to actuate the diversion. There is a diverter stem that is moveable between a non-diverted and diverted position. The diverter stem includes an upstream portion and a reduced cross sectional waist portion downstream of the upstream portion. The reduced portion interacts with the diverted fluid to reduce the force required to move the diverter stem from the non-diverted to the diverted position.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: November 20, 2012
    Assignee: Kohler Co.
    Inventor: Michael A. Niver
  • Patent number: 8261771
    Abstract: A check valve assembly has a body having a central cavity intersected by upstream and downstream flow passages. A seat is secured by a threaded engagement in the upstream flow passage. An access bore intersects the cavity and has a support shoulder formed in it. A holder is supported on the support shoulder. A flapper is pivotally secured to the holder and located in the cavity for movement between an open position and a closed position blocking flow through the seat. A straight edge portion in the access bore engages a straight edge portion of the holder to prevent rotation of the holder. A fastener extends through a hole in the support shoulder into engagement with the seat to prevent rotation of the seat.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: September 11, 2012
    Assignee: S.P.M. Flow Control, Inc.
    Inventors: Brian C. Witkowski, Nuder M. Said
  • Patent number: 8221100
    Abstract: A valve seat for use in a high pressure pump comprises an inner portion force fit within an outer portion. The outer portion has a fluid plenum at an outer peripheral surface. Fluid passages extend radially inwardly to communicate with a valve recess in the inner portion. A seal housing for a high pressure pump comprises an outer portion and an inner portion. The inner portion is force fit within the outer portion. The inner portion has an inner bore having a first location to receive seal packings, and a second location to receive valve spring structure. The inner portion has a curved surface that bottoms out against a curved surface within the outer portion.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: July 17, 2012
    Assignee: NLB Corp.
    Inventors: Jamie A. Forrest, Matthew O. Herhold
  • Patent number: 8220485
    Abstract: A pneumatic pilot valve comprises a valve body having an inlet, an outlet, a flow passage, and first and second valves arranged to control flow through the valve. The second valve includes a tapered valve seat opening into a cylindrical bore, and a thrust pin includes a tapered second part and an annular recess having a seal. The thrust pin is movable between a first position, a second position, and an intermediate position. The tapered second part of the thrust pin is arranged to engage the tapered valve seat to close the second valve when the thrust pin moves to the second position, and the resilient seal is sized to engage the cylindrical bore when the thrust pin is in the intermediate position.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: July 17, 2012
    Assignee: Fisher Controls International LLC
    Inventor: Michel K. Lovell
  • Patent number: 8079384
    Abstract: The present invention provides a spool seat with a positioning structure, which resolves the shortcomings of the assembly of a typical spool ceramic disc and spool seat. The spool seat of the present invention is provided with a chamber space for locating the fixed ceramic disc. The chamber space is provided with an internal locating portion which comprises an internal locating flange and external locating flange. An external locating portion is protruded from the chamber space. The chamber space is divided into inlet space and outlet space via the arrangement of internal locating portion. It is possible to eliminate the space restrictions for the fixed ceramic disc, and also prevent the rotation and slide or displacement when the fixed ceramic disc is assembled into the chamber space of the spool seat.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: December 20, 2011
    Assignee: Kuching International Co., Ltd.
    Inventor: Mei-Li Chen
  • Patent number: 7987868
    Abstract: An exhaust gas valve assembly includes a housing defining a cavity therein and having an intake port and an exhaust port. A valve seat has a first axial end secured to the housing and a second axial end that is disposed within but decoupled a distance from the housing. The second axial end defines one or more apertures that provide fluid communication between the intake and exhaust ports. A seal is disposed between the second axial end of the valve seat and the housing so as to close the decoupled distance therebetween. A piston is received within and is axially movable relative to the valve seat so as to open and close the one or more apertures and thereby regulate exhaust gas flow between the intake and exhaust ports.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: August 2, 2011
    Assignee: Honeywell International Inc.
    Inventors: Jean-Luc Perrin, Yannick Prebost
  • Patent number: 7950410
    Abstract: A gate valve includes a valve body having a cylindrical passage defining a flow path through the valve, a gate for controlling fluid flow through the valve and a replaceable wear-resistant flow-path liner for in the flow path. The flow-path liner includes a plurality of replaceable wear-resistant inserts, including wear sleeves lining ports of the valve body, valve seats and a gate insert for a flow path bore through the gate. Each replaceable valve seat has a wiper ring for cleaning the gate when it opens and closes. By regularly inspecting and replacing worn-out inserts, the service life of the gate valve can be prolonged and the expense associated with replacing or rebuilding the valve body is avoided.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: May 31, 2011
    Assignee: Stinger Wellhead Protection, Inc.
    Inventors: Bob McGuire, L. Murray Dallas
  • Patent number: 7896312
    Abstract: A ball valve comprising: a valve body with a seat for housing a ball provided with a coaxial through-opening and able to be rotationally operated from a closed valve position into an open valve position and vice versa; two opposite end flanges which are constrained to the valve body on opposite sides of the ball and provided with a respective, coaxial, internal hole and are suitable for connection to respective pipe sections; sealing means arranged between the valve body and the ball and comprising an annular member which is coaxial with the longitudinal axis (X-X) and carries an axial seal housed inside an associated axial seat inside which it is partially inserted in order to interfere with the outer surface of the ball, comprising a coaxial ring axially constrained to the annular seal-carrying member and interfering in the transverse direction (Y-Y) with a front surface portion of the seal in order to retain the latter in the axial direction.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: March 1, 2011
    Assignee: Cesare Bonetti S.p.A.
    Inventors: Giuseppe Dalmasso, Roberto Fant
  • Patent number: 7887025
    Abstract: A valve comprises a housing, an annular housing seat, and a gate. The housing comprises a fluid inlet and a fluid outlet. The housing seat is fixed in position relative to the housing via epoxy. The gate comprises a gate seat and a fluid passageway that extends through the gate. The gate is movable relative to the housing between an open position and a closed position. The gate is also configured to allow fluid to flow from the fluid inlet through the fluid passageway to the fluid outlet when the gate is in the open position, and configured such that the gate seat engages the housing seat in a manner preventing fluid from flowing from the fluid inlet to the fluid outlet when the gate is in the closed position.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: February 15, 2011
    Inventors: Thomas A. Hartman, Brian T. Hartman
  • Patent number: 7874314
    Abstract: An improved fuel line connector for connecting a fuel line connection valve to a fuel cylinder outlet valve includes an improved, replaceable tip seal mounted on the tip or nose of the connector valve. The tip seal provides an additional, effective face seal between the connector body and the cylinder outlet valve. The tip seal, being on the fuel line connector, can be maintained and replaced by the party using the vehicle or filling the fuel cylinder.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: January 25, 2011
    Assignee: Marshall Excelsior Company
    Inventor: James C. Zuck
  • Patent number: 7854239
    Abstract: A trim assembly for a control valve includes a seal for sealing a leak path, where the seal is provided to perform advantageously in high-temperature applications, e.g., applications including temperatures of at least 450° F. (232.22° C.). The control valve comprises a valve body and control element. The control element is disposed within the valve body for controlling the flow of fluid therethrough. The trim assembly comprises a valve seat and a retention ring. The valve seat is fixed to the valve body, and the retention ring is threadably connected to the valve seat. The seal can be effected by an annular graphite seal compressed between the trim assembly and the valve body, or by a metal-to-metal contact between the retention ring and the valve body.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: December 21, 2010
    Assignee: Fisher Controls International LLC
    Inventors: William E. Wears, Galen D. Wilke, John Christen
  • Patent number: 7770547
    Abstract: A water outlet chamber-type regulating device includes a chamber component having an inlet and an outlet for a fluid to be regulated, and including a member for regulating the flow, the member having a valve component translatingly movable and configured to close a passage cross-section between the inlet and the outlet, and is rigidly fixed to a control shaft. The chamber component includes at least one opening formed in its lateral wall, and the control shaft carries a second closing component, which is integral in translation with the shaft and is positioned on the shaft and has a shape that is configured to regulate the flow of water passing through the opening as a function of the regulation of the flow in the region of the passage cross-section.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: August 10, 2010
    Assignee: Mark IV Systemes Moteurs (Societe Anonyme)
    Inventors: Richard Komurian, Pascal Corduan
  • Patent number: 7758020
    Abstract: A valve in which durability of a sealing member made from an elastic material can be increased and sealing capability can be advantageously maintained over a wide range from a large differential pressure to a low differential pressure. A valve (100), in which a valve disc (1) and a valve seat (2) are brought into close contact via a sealing member (5) composed of an elastic material and provided at the valve disc (1) or valve seat (2), comprises a throttle section (30) defined by the shape of at least one of the valve disc (1) and valve seat (2). The throttle section (30) narrows a flow passage formed between the valve disc (1) and valve seat (2) and is provided near the sealing member (5). The flow passage narrowed by the throttle section (30) is so set that narrowing preferentially proceeds in the flow passage in close proximity to the sealing member (5) during the closing operation of the valve disc (1).
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: July 20, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomoyoshi Kobayashi, Norio Yamagishi
  • Patent number: 7686280
    Abstract: An apparatus and method for a diaphragm valve includes a valve body having a chamber in fluid communication with a first channel and a second channel. A diaphragm is disposed in the chamber, and a tapered seat member is at least partially disposed in the first channel. A sleeve is compressively disposed in the seat member between the seat member and the first channel to maintain a fluid tight seal between the seat member and the first channel. A valve member is movable to controllably urge the diaphragm into and out of engagement with the seat member to control flow of fluid between the first the first and second channel.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: March 30, 2010
    Assignee: Circor Instrumentation Technologies, Inc.
    Inventor: Patrick A. Lowery
  • Publication number: 20100000524
    Abstract: A seal for a valve for use in a pharmaceutical dispensing device, which seal is formed from a blend comprising: a thermoplastic elastomer including a propylene component with isotactic crystallinity; and a polymer selected from one or more of polypropylene, polyethylene and copolymers thereof.
    Type: Application
    Filed: September 4, 2007
    Publication date: January 7, 2010
    Applicant: CONSORT MEDICAL PLC
    Inventor: Daljit Ohbi
  • Publication number: 20090309059
    Abstract: A seal assembly for a fluid pressure control device includes a guide element having a sealing surface and a first guide surface. A throttling element assembly includes a throttling element positionable within a fluid flow path, the assembly defines a mating surface adapted to seal with the sealing surface, and a second guide surface sized to slidingly engage the first guide surface. A relief void is formed in at least one of the guide element and the throttling element assembly adjacent the first and second guide surfaces to receive loose solid material, to thereby prevent disruption of the seal formed between the sealing surface and the mating surface.
    Type: Application
    Filed: August 24, 2009
    Publication date: December 17, 2009
    Applicant: FISHER CONTROLS INTERNATIONAL LLC
    Inventors: Michael W. McCarty, Donald R. Bush, Daniel M. Adams, Frederick W. Catron, Michael D. Frohwein
  • Patent number: 7624755
    Abstract: A gas valve may include a valve body and a valve member disposed within the valve body. A resilient sealing ring may be disposed within the valve body such that the valve member achieves a closed position when the valve member contacts the resilient sealing ring. In some instances, a gas valve may include both an upper resilient sealing ring and a lower resilient sealing ring. The upper resilient sealing ring and the lower resilient sealing ring may both permit overtravel.
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: December 1, 2009
    Assignee: Honeywell International Inc.
    Inventors: Jiri Benda, Pavel Konecny
  • Patent number: 7624965
    Abstract: A valve in which durability of a sealing member made from an elastic material can be increased and sealing capability can be advantageously maintained over a wide range from a large differential pressure to a low differential pressure. A valve (100), in which a valve disc (1) and a valve seat (2) are brought into close contact via a sealing member (5) composed of an elastic material and provided at the valve disc (1) or valve seat (2), comprises a throttle section (30) defined by the shape of at least one of the valve disc (1) and valve seat (2). The throttle section (30) narrows a flow passage formed between the valve disc (1) and valve seat (2) and is provided near the sealing member (5). The flow passage narrowed by the throttle section (30) is so set that narrowing preferentially proceeds in the flow passage in close proximity to the sealing member (5) during the closing operation of the valve disc (1).
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: December 1, 2009
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomoyoshi Kobayashi, Norio Yamagishi
  • Publication number: 20090272924
    Abstract: A self-aligning poppet valve assembly is disclosed. The self-aligning poppet valve assembly is disposed within the inner wall of a conduit and comprises a movable sealing member having a poppet guide, a seat portion comprising an inner receptacle adapted to receive the moveable sealing member, a sealing flange adapted to contact the moveable sealing member, thereby selectively inhibiting fluid flow past the moveable sealing member, and a guide receiving portion coupled the poppet guide, and a sealing device surrounding the seat portion and adapted to maintain a seal between the seat portion and the inner wall of the conduit.
    Type: Application
    Filed: July 9, 2008
    Publication date: November 5, 2009
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Paul Wingett, Steve Abel, Eric J. Ekstrom
  • Patent number: 7506660
    Abstract: A gate valve includes a valve body having a cylindrical passage defining a flow path through the valve, a gate for controlling fluid flow through the valve and a replaceable wear-resistant flow-path liner for in the flow path. The flow-path liner includes a plurality of replaceable wear-resistant inserts, including wear sleeves lining ports of the valve body, valve seats and a gate insert for a flow path bore through the gate. Each replaceable valve seat has a wiper ring for cleaning the gate when it opens and closes. By regularly inspecting and replacing worn-out inserts, the service life of the gate valve can be prolonged and the expense associated with replacing or rebuilding the valve body is avoided.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: March 24, 2009
    Assignee: Stinger Wellhead Protection, Inc.
    Inventors: Bob McGuire, L. Murray Dallas
  • Patent number: 7481239
    Abstract: A gate valve includes a valve body having a cylindrical passage defining a flow path through the valve, a gate for controlling fluid flow through the valve and a replaceable wear-resistant flow-path liner for in the flow path. The flow-path liner includes a plurality of replaceable wear-resistant inserts, including wear sleeves lining ports of the valve body, valve seats and a gate insert for a flow path bore through the gate. Each replaceable valve seat has a wiper ring for cleaning the gate when it opens and closes. By regularly inspecting and replacing worn-out inserts, the service life of the gate valve can be prolonged and the expense associated with replacing or rebuilding the valve body is avoided.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: January 27, 2009
    Assignee: Stinger Wellhead Protection, Inc.
    Inventors: Bob McGuire, L. Murray Dallas
  • Patent number: 7398955
    Abstract: The valve seat of the present invention is configured for attachment to the valve housing after the valve housing has been coated with a protective coating. The valve seat is configured to grip the valve housing, thereby providing a secure attachment. In its simplest form, the valve seat and the valve housing are both configured with corresponding locking-ring grooves, and a locking-ring element is positioned so as to be at least partially deployed in both the valve seat locking-ring groove and the valve housing locking-ring groove simultaneously. It will be appreciated that the features of the present invention may be used to benefit with substantially any type and style of valve known in the art.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: July 15, 2008
    Assignee: Bermad Limited Partnership
    Inventor: Zvi Weingarten
  • Patent number: 7325783
    Abstract: A valve seat has an outer surface, a rearward end, a face and a forward end. A passage extends from the rearward end to the face. A valve element slidingly contacts the face. Stress relief flanges are located on the face in areas of high bearing stress. Each flange has a thickness that allows it to deflect slightly to reduce bearing stresses.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: February 5, 2008
    Assignee: Vetco Gray Inc.
    Inventor: Rick C. Hunter
  • 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: 7198250
    Abstract: Thin chamber diaphragm-operated fluid handling devices, including thin chamber pumps and thin chamber valves, facilitate device compactness and, in some configurations, self-priming. Diaphragm actuators of the thin chamber devices either comprise or are driven by piezoelectric materials. The thinness of the chamber, in a direction parallel to diaphragm movement, is in some embodiments determined by the size of a perimeter seal member which sits on a floor of a device cavity, and upon which a perimeter (e.g. circumferential or peripheral portion) of the diaphragm actuator sits. The diaphragm actuator is typically retained in a device body between the floor seal member and another seal member between which the perimeter of the actuator is sandwiched. The devices have an input port and an output port.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: April 3, 2007
    Assignee: Par Technologies, LLC
    Inventor: W. Joe East
  • Patent number: 7077384
    Abstract: A control valve having a seat ring assembly constructed from a unitary piece of material is disclosed. The seat ring assembly may include a base which serves as a valve seat for the valve plug of the valve, and which includes a plurality of exterior threads adapted to rotatably attach to a plurality of interior threads provided within the valve body. The seat ring assembly may also include a post-guided bearing surface to maintain alignment of the valve plug to the valve seat. The seat ring assembly can be secured to the valve body simply by threadably attaching the elements. Moreover, by providing the valve seat and the guide surface as integral parts of the seat ring assembly, manufacturing costs and maintenance requirements are reduced and subsequent seal leak performance is increased.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: July 18, 2006
    Assignee: Fisher Controls International LLC.
    Inventor: David John Koester
  • Patent number: 7013877
    Abstract: A pressure control valve for a high-pressure diesel pump of an injection device of a motor vehicle has a valve body and a piezo drive with a tappet securing the valve body in a closed position. The valve body in the closed position closes off a bore, containing a medium under pressure, relative to a pressure-relief bore. The piezo drive has at least one piezo element connected to the tappet. The piezo drive is mounted in a pump housing of the high-pressure diesel pump. A screw element receives the piezo drive and is used to screw the piezo drive into the mounting chamber of the pump housing.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: March 21, 2006
    Assignee: Hydraulik-Ring GmbH
    Inventors: Alfred Trzmiel, Rolf Neuhaus, Friedrich Zapf
  • Patent number: 6991236
    Abstract: A device for securing a sealing member in a predetermined position. The device comprises a positioning element of a predetermined size and shape having a first surface and a second surface, and a retaining element of a predetermined size and shape disposed on at least one of the first surface and second surface of the positioning element.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: January 31, 2006
    Assignee: Westinghouse Air Brake Technologies Corporation
    Inventor: Lawrence J. Andrews