Reciprocating Valves Patents (Class 137/528)
  • Patent number: 10307562
    Abstract: A device for treating a patient suffering from obstructive sleep apnea or snoring can include an expiratory valve connected to a manifold. The expiratory valve can include a body portion including a feedback port configured to be connected to an air flow generator. The expiratory valve can include a plunger at least partially disposed in the body portion. The expiratory valve can include a pressurizing chamber positioned between an end of the plunger and an end of the expiratory valve. The pressurizing chamber can be configured to receive air from the air flow generator through the feedback port.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: June 4, 2019
    Assignee: FRESCA Medical, Inc.
    Inventors: Andrew H. Cragg, John Logan, Haim Nissimov, Richard Christian Ewers, Mark Alan Adler, Eugene G. Chen, John Edwin Trusheim, John Eugene Nolting, Stephen William Anderson, Kevin Nai Hong Chen
  • Patent number: 10041444
    Abstract: A fuel delivery system is provided for a turbine engine. This fuel delivery system includes a variable orifice jet configured to spray fuel received from a spray bar fuel conduit. The variable orifice jet includes a flexible body and a pintle that extends through a sidewall of the flexible body. An area of an orifice between the sidewall and the pintle is variable.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: August 7, 2018
    Assignee: United Technologies Corporation
    Inventor: Donald W. Peters
  • Patent number: 9987480
    Abstract: A urine control device to be placed intermediate a catheter and a collection bag is provided. The urine control device includes first and second bell shaped housings with a magnetic valve disposed between the first and the second housings. When the pressure from the urine which flows through the present catheter enters the first chamber and exceeds the magnetic attraction in the valve, the valve pivotally opens, permitting the urine to flow through the open valve and into the second chamber. Due to the shape of the chambers, secondary forces create a low pressure zone in the second chamber which helps empty the bladder fully. Once the flow ceases, the magnetic valve pivotally shuts, allowing the urine pressure to build once again. Various sample ports and air entry ports may be provided on the device.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: June 5, 2018
    Inventor: Michael R. McDaniel
  • Patent number: 9915457
    Abstract: A temperature-controlled beverage dispenser is disclosed, which provides a cold plate having disposed therein beverage lines and refrigerant lines. The refrigerant lines may be connected to a cooling system, such as a heat exchanger, which is configured to remove heat from the cold plate. The beverage lines may be connected to a beverage supply for dispensing a desired beverage. Valves and a pressure sensor in the refrigerant line are connected to a microprocessor. At regular intervals, the microprocessor closes the valves, waits a short time, and then takes a pressure reading, which corresponds to a temperature. If the temperature falls below a desired value, then the cooling system is shut off. This permits the microprocessor to closely control the temperature of the beverage being dispensed.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: March 13, 2018
    Assignee: Cleland Sales Corporation
    Inventor: James M. Cleland
  • Patent number: 9897225
    Abstract: A solenoid fluid control valve having a valve body containing a solenoid coil, a fluid channel, and a seat, each coaxially disposed about a central longitudinal axis of the body, and a one-piece armature of MRE material. The armature is disposed within the fluid channel and magnetically actuable to seal against the seat, with operation of the solenoid coil actuating the armature with respect to the seat to alter the closure state of a fluid port. Also, a fluid check valve having a first valve body part defining a seat, a fluid port, and a first portion of a fluid chamber, with the seat including a permanent magnet element disposed adjacent the fluid port proximate the fluid chamber. A one-piece armature of MRE material is disposed across the fluid port and magnetically sealable against the magnet element. The armature and magnet element are configured to create a preselected magnetization offset pressure portion of a valve cracking pressure.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: February 20, 2018
    Assignee: VERNAY LABORATORIES, INC.
    Inventor: Robert Ferguson
  • Patent number: 9320882
    Abstract: A urine control device to be placed intermediate a catheter and a collection bag is provided. The urine control device includes first and second bell shaped housings with a magnetic valve disposed between the first and the second housings. When the pressure from the urine which flows through the present catheter enters the first chamber and exceeds the magnetic attraction in the valve, the valve pivotally opens, permitting the urine to flow through the open valve and into the second chamber. Due to the shape of the chambers, secondary forces create a low pressure zone in the second chamber which helps empty the bladder fully. Once the flow ceases, the magnetic valve pivotally shuts, allowing the urine pressure to build once again. Various sample ports and air entry ports may be provided on the device.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: April 26, 2016
    Inventor: Michael R. McDaniel
  • Patent number: 9303776
    Abstract: A pressure relief valve includes a valve body having an inlet and an outlet and defining a first fluid path fluidly connecting the inlet and the outlet of the valve; a valve member axially moveable between a first position and a second position, the valve member configured to close the fluid path in the first position and thereby restrict flow between the inlet and the outlet, the valve member configured to open the fluid path in the second position and thereby allow flow between the inlet and the outlet; a biasing element configured to bias the valve member in the first position; and a friction element resiliently biased laterally against an axially extending surface of the valve member to provide frictional resistance to movement of the valve member and thereby cause hysteresis in axial movement of the valve member between the first position and the second position.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: April 5, 2016
    Assignee: Parker-Hannifin Corporation
    Inventors: Geoffrey R Zhang, Rodney K Craven
  • Patent number: 9249891
    Abstract: A valve having secondary spring force containment includes a valve body featuring an opening with a valve closure member sized to close the opening. A stem has a first end connected to the valve closure member. A proximal spring seat is positioned adjacent to the valve body, A distal spring seat is mounted on the second end of the stem. A spring is positioned between the proximal and distal spring seats so that the valve closure member is urged into a position where the valve body opening is closed. A hollow rod is attached between the proximal and distal spring seats to provide secondary spring force containment with the stem passing through the hollow rod.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: February 2, 2016
    Assignee: McKenzie Valve and Machine LLC
    Inventors: Donald Prince, Thomas Summers
  • Patent number: 9145888
    Abstract: A differential pressure control valve has a valve seat made of magnetic material, a valve body, and a guiding member fixed to the valve seat to guide the valve body. The valve body is located on the downstream side of the valve seat, and is seatable on the valve seat in accordance with the pressure difference between the upstream side and the downstream side to selectively open and close a valve hole. The valve body has a lid made of magnetic material and a guided member made of nonmagnetic material. The lid is seated on the valve seat to close the valve hole, and the guided member is guided by the guiding member. The valve seat or the lid has a permanent magnet, located outside the area where the valve body is seated on the valve seat, urging the valve body in the direction approaching the valve seat.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: September 29, 2015
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Nobuaki Hoshino, Masaki Ota, Yoshio Kimoto, Toru Onishi, Yusuke Yamazaki
  • Patent number: 9091354
    Abstract: A solenoid valve unit is described for shutting off or enabling a throughflow of a medium along a hollow duct, which flows under application of pressure along the hollow duct, having at least one first magnet unit which is fixedly arranged along the hollow duct, which is implemented in the form of a hollow cylinder and is arranged in an axial section along the hollow duct in such a way that the first magnet unit radially completely surrounds the hollow duct and has a flow opening, which is circular in cross-section, on its downstream end, as well as a second magnet unit, which is mounted so it is movable to the first unit and is implemented as a ball, whose ball diameter is greater than the flow opening diameter of the first magnet unit and which, on account of an attractive magnetic force prevailing between both magnet units, can be brought into indirect or direct contact with the first magnet unit and seals the hollow duct in a fluid-tight manner, while the medium loads the first magnet unit under applicati
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: July 28, 2015
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR
    Inventors: Dirk Schlenker, Nabih Othman
  • Patent number: 9057181
    Abstract: A water flow valve positioned within a water distribution system just past a building's water meter. The valve compresses air bubbles into the water at the point where the water enters the meter, thus making the meter read less volume when the water passes through it. The air is compressed through back pressure created by the valve. With this increase in pressure, the air bubbles in the water begin to collapse and occupy less space. When the water, with collapsed air bubbles, passes through the meter, the meter reads basically only the water volume, as the amount of any air volume remaining is negligible. As such, the user's water bill is lower, as compared to if no valve had been disposed within the water line, and the bill reflect a more accurate reading of the actual amount of water that has been delivered.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: June 16, 2015
    Assignee: FLUID DYNAMICS HOLDINGS, LLC
    Inventor: Efraim Brody
  • Publication number: 20150144209
    Abstract: Valve seat (1) for a valve for a piston pump, comprising a ring (2) with a flat side and a disc (4) with a flat side received within this ring (2), wherein the flat sides of the ring (2) and the disc (4) lie in one plane, and the ring (2) and the disc (4) are coupled by at least two arcuate arms (6) extending from the side remote from the flat side of the disc (4).
    Type: Application
    Filed: May 28, 2013
    Publication date: May 28, 2015
    Inventors: Johannes Bruin, Harmen Bruin
  • Publication number: 20150104341
    Abstract: A bypass valve (1), in particular a compressor bypass valve, having a valve housing (2); a valve guide body (3), which is fixed in the valve housing (2); and a valve disk (4), which is guided between a closed position and an open position by the valve guide body (3) in the valve housing (2). The the valve guide body (3) and the valve disk (4) are in the form of plastic parts.
    Type: Application
    Filed: April 22, 2013
    Publication date: April 16, 2015
    Applicant: BorgWarner Inc.
    Inventors: Matthias Ruh, Fred Maue
  • Publication number: 20150096625
    Abstract: A valve assembly for a tank of a vehicle and a method of creating a vacuum are disclosed. A valve body defines a cavity and an outlet in fluid communication with the cavity for venting the tank. The assembly includes a seat disposed in the cavity of the valve body. The seat separates the cavity into first and second cavity portions. The seat defines an aperture to provide fluid communication between the first and second cavity portions. The assembly includes a cover device disposed between the seat and the outlet. The cover device defines at least one hole therethrough. The cover device is movable between a rest position engaging the seat to minimize fluid communication between the aperture and the hole and an actuated position spaced from the seat to increase fluid communication between the aperture and the hole when a vacuum is created in the first cavity portion.
    Type: Application
    Filed: December 15, 2014
    Publication date: April 9, 2015
    Applicant: EATON CORPORATION
    Inventor: Vaughn Kevin Mills
  • Publication number: 20150068622
    Abstract: A check valve is provided for use with variable frequency drives and other applications. In one aspect, the check valve provides a poppet guided by a poppet guide in at least two locations to ensure stability between fully open and fully closed positions. In another aspect, the check valve includes a poppet guide adapted to receive a poppet in a stem receiving channel, the stem receiving channel including guide vanes engaging the poppet and auxiliary channels for self cleaning. The check valve may also include a valve seal. In one embodiment, the valve seal is an o-ring received by a poppet head, based of the poppet guide and valve seat. The valve seat and/or the base may include expansion channels to receive a portion of the valve seat during compression when the check valve is in a closed position.
    Type: Application
    Filed: September 10, 2013
    Publication date: March 12, 2015
    Applicant: Flomatic Corporation
    Inventor: Allan Bo ANDERSSON
  • Publication number: 20150047721
    Abstract: A check valve for use in a fluid system such as, for example, a pump. The check valve includes a housing with an inlet, an outlet, and a fluidic chamber formed by an inner wall. The fluidic chamber includes an inlet orifice at a location where fluid flowing from the inlet enters the fluidic chamber. A check ball is disposed with the fluidic chamber of the housing. The check ball is movable between a “closed” position (wherein fluid is prevented from flowing from the outlet to the inlet) and an “open” position (wherein fluid is allowed to flow from the inlet to the outlet). When the check ball is in the open position, the fluid passage formed by the gap between the inner wall and the check ball, has a substantially uniform height.
    Type: Application
    Filed: August 18, 2014
    Publication date: February 19, 2015
    Inventor: John P. Hayles
  • Publication number: 20150034179
    Abstract: A control valve includes a piston-housing having a hollow portion. The hollow portion has a first end, an open end, first and second internal chambers, and a fluid port configured to allow fluid to exit the second chamber. The first chamber is nearer the first end, and the second chamber is nearer the open end. A piston is located within the housing and is adapted for reciprocal motion. The piston includes a first and second seal-engaging portions. The first seal-engaging portion has a diameter that is less than the diameter of the second seal-engaging portion.
    Type: Application
    Filed: August 4, 2014
    Publication date: February 5, 2015
    Applicant: Daniel Measurement and Control, Inc.
    Inventors: Thomas Henry Loga, David J. Seiler, Justin Blake Crouch, Michael Richard Adib Zahr, Raul H. Almazan
  • Publication number: 20150034195
    Abstract: The valve unit includes: a body having a charging passage; a supply-side joint that connects a supply pipe; and a check valve that is disposed in the gas passage, and that inhibits gas from being discharged from the gas tank to the outside of the body. The check valve includes a check valve seat, a check valve element that comes into contact with or moves away from the check valve seat, and a positioning member that fixes the position of the check valve seat in the charging passage. The body has a fitting hole which is communicated with the charging passage and in which the supply-side joint and the positioning member are fitted. The positioning member is fitted in a second fitting hole so as to fix the position of the check valve seat even when the supply-side joint has not been fitted in a first fitting hole.
    Type: Application
    Filed: July 18, 2014
    Publication date: February 5, 2015
    Inventors: Toshihiko SHIMA, Akio NAKAMURA, Kenji TAKAHASHI, Shusuke INAGI, Kentaro HIOKI
  • Publication number: 20150029639
    Abstract: In some embodiments, an apparatus includes a housing and a purge valve. The housing defines a cavity and a lumen extending from a volume of the cavity to a volume outside the cavity. The purge valve is disposed within the lumen and includes an occlusion member. A portion of the occlusion member has a width substantially equal to a width of an end portion of the lumen such that the portion of the occlusion member is disposed within the end portion of the lumen when the purge valve is in a first configuration. The portion of the occlusion member being disposed outside the end portion of the lumen when the purge valve is in a second configuration.
    Type: Application
    Filed: May 20, 2014
    Publication date: January 29, 2015
    Applicant: loxus, Inc.
    Inventors: Thor E. Eilertsen, Chad Hall, Lothar Franz Bieg
  • Publication number: 20150027567
    Abstract: The invention generally provides a dynamic back pressure regulator. In exemplary embodiments, the back pressure regulator includes an inlet, an outlet, a seat disposed between the inlet and the outlet and defining at least part of a fluid pathway, and a needle displaceable relative to the seat to form a restriction region therebetween for restricting fluid flow between the inlet and the outlet. In some embodiments, the needle can be formed of a chemically resistant ceramic or have a metal plating to provide corrosion and/or erosion resistance.
    Type: Application
    Filed: March 4, 2013
    Publication date: January 29, 2015
    Applicant: Waters Technologies Corporation
    Inventors: Joshua A. Shreve, John M. Auclair, Paul Keenan, Edwin Denecke, Gerald Wisser, Edward Bates, Eugene Berthiaume, Michael Bower
  • Publication number: 20150020784
    Abstract: A dual flow check valve includes a valve body having an inner valve cavity, a first valve opening, and a second valve opening. The dual flow check valve further includes a seal disposed within the valve body. The seal is operatively coupled within the valve body such that the seal is configured to move relative to the valve body between an open position, in which the seal allows the gas to flow between the first and second valve openings through the inner valve cavity, and a closed position, in which the seal inhibits the gas and the liquid from flowing through the inner valve cavity from the first valve opening to the second valve opening.
    Type: Application
    Filed: July 16, 2013
    Publication date: January 22, 2015
    Inventors: Alan E. Rice, Steven G. Bryde
  • Publication number: 20150000752
    Abstract: A fluid pressure regulating system includes an auxiliary fluid circuit having a high pressure region and a low pressure region, a pump connected to the auxiliary fluid circuit and configured to discharge fluid into the high pressure region of the auxiliary fluid circuit, and a check valve connecting the high pressure region of the auxiliary fluid circuit to a main fluid interface line. The fluid pressure regulating system also includes a pressure regulating valve connecting the high pressure region of the auxiliary fluid circuit and the low pressure region of the auxiliary fluid circuit. The pressure regulating valve includes an aperture defining a fluid path from the high pressure region of the auxiliary fluid circuit to the low pressure region of the auxiliary fluid circuit. The aperture has a variable area as a function of fluid pressure within the main fluid interface line.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 1, 2015
    Inventors: Floyd K. Matlack, Paul A. Carvalho
  • Publication number: 20140373797
    Abstract: A non-return valve for an oil return in the crankcase ventilation system of a combustion engine includes a valve housing, a valve body which is mounted in the valve housing so as to be displaceable as a whole between an open position and a closed position, wherein the valve body in the non-operating state of the combustion engine is maintained in the open position without preload and the valve body is configured to automatically move to the closed position in case of an overpressure at the crankcase side with respect to the oil separator chamber. The non-return valve is provided and configured to be inserted into a mounting of a cylinder head cover of the combustion engine.
    Type: Application
    Filed: June 25, 2014
    Publication date: December 25, 2014
    Inventors: Manfred Brand, Doerte Petigk, Thomas Schrader
  • Patent number: 8905376
    Abstract: Tunable check valves reduce valve-generated vibration to increase the reliability of tunable fluid ends. Selected improved designs described herein reflect disparate applications of identical technical principles (relating to, e.g., the vibration spectrum of an impulse). Tunable check valve embodiments comprise a family including, but not limited to, tunable check valve assemblies, tunable valve seats, and tunable radial arrays. Each such tunable embodiment, in turn, contributes to blocking excitation of fluid end resonances, thus reducing the likelihood of fluid end failures associated with fatigue cracking and/or corrosion fatigue. By down-shifting the frequency domain of each valve-closing impulse shock, initial excitation of fluid end resonances is minimized.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: December 9, 2014
    Inventors: Dennis W. Gilstad, Barbara C. Gilstad
  • Publication number: 20140345717
    Abstract: A trim of a check valve includes a stem, a fixed member including two opposite through holes, a rotational member secured to the stem and including two opposite recesses, a hollow coupling member including an inlet at one end, a sleeve releasably secured to the coupling member wherein the sleeve includes an outlet at an other end and the fixed member and the rotational member are disposed at one end of the sleeve, a closing member moveably disposed at an other end of the sleeve, a connector releasably secured to an other end of the stem, and a biasing member biased between the closing member and the connector. In response to fluid pressure differential greater than a predetermined value the rotational member is clockwise turned to align the through holes with the recesses to allow the fluid to flow out of the outlet.
    Type: Application
    Filed: October 25, 2013
    Publication date: November 27, 2014
    Applicant: FUSAN VALVE (SUZHOU) LIMITED
    Inventors: Lian-Tsai JONG, Wen-Lung CHUNG, Shen-Kai CHUNG, Ji-Hui JIA
  • Patent number: 8875731
    Abstract: An apparatus for automatically maintaining the water level of a body of water, such as a pool, is described herein. The present invention comprises a float body contained within a float housing chamber and selectively coupled to a float valve, a ball check valve employed as a means for isolating the pressurized water in the circulation system of a body of water from the water in the float chamber and, after pump operation has ceased, allowing the passage of supply water from the float chamber of the apparatus of the circulation system of a body of water. Flexible conduits or tubing may be provided for ease of installation. Furthermore, the present invention is intended to be conveniently located near the equipment of the circulation system for the body of water.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: November 4, 2014
    Inventor: David Larsen
  • Publication number: 20140318643
    Abstract: An actuator system for a fluid playground including a first elongated tubular member defining a first axially extending enclosure and having a first inlet connectable to a fluid source, and a second elongated tubular member positioned within the first tubular member, the second tubular member defining a second axially extending enclosure, and having a second inlet in fluid communication with the first enclosure and an outlet traversing the first tubular member. The outlet is connectable to at least one fluid playground device. A plug element is shaped to removably and sealably close the second inlet of the second tubular member. A resilient member urges the plug element towards sealing engagement with the second tubular member. A pressure exerted on a movable actuating element connected to the plug element causes its displacement away from sealing engagement with the second inlet, thereby allowing fluid flow to the fluid playground device.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 30, 2014
    Applicant: LES INDUSTRIES SIMEXCO INC.
    Inventor: Luc PELLERIN
  • Publication number: 20140311596
    Abstract: Disclosed is a check valve for a variable capacity compressor of a vehicle, which includes a valve seat including a refrigerant introduction hole, a valve case disposed above the valve seat, and including refrigerant discharge holes along a circumferential surface of a cylindrical body thereof, a spool valve disposed within the valve case to selectively open and close the refrigerant introduction hole and the refrigerant discharge holes, and an elastic member disposed between the valve case and the spool valve.
    Type: Application
    Filed: March 21, 2012
    Publication date: October 23, 2014
    Inventors: Ki Yoen Kim, Gwi Seung In
  • Publication number: 20140261790
    Abstract: A poppet valve with an integrated dampener is disclosed. In some embodiments, the valve includes a poppet guide with a stem and a hollow poppet is disclosed. The hollow poppet receives the poppet guide stem therein, thereby defining an internal cavity. The poppet is movable relative to the poppet guide to adjust the volume of the internal cavity. The poppet is also moveable relative to a valve seat between a seated position and an unseated position. The poppet may include a body with a seal groove and an elastic seal disposed within the seal groove. The seal is configured to engage the valve seat prior to the poppet body when the poppet moves toward the seated position. The valve may include a poppet guide pivot system that enables pivoting of the poppet guide and the poppet relative to an axial centerline of the valve.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 18, 2014
    Applicant: National Oilwell Varco, L.P.
    Inventor: Adrian Marica
  • Publication number: 20140251465
    Abstract: A tip-resistant valve plug comprises a valve head, first and second retention legs, and an anti-tip fin. The valve head defines a fluid barrier. The anti-tip fin and the retention legs extend from the same side of the valve head. The anti-tip fin comprises a groove that allows the valve head to flex along a longitudinal fin axis; the anti-tip fin extends from the side of the valve head to a fin height dimension that is greater than a relief spring compression dimension caused by the tip-resistant valve moving between a closed position and an open position; or the valve head has a smaller moment of inertia evaluated in a direction the anti-tip fin extends across the valve head than a moment of inertia evaluated in a direction normal to the direction the anti-tip fin extends across the valve head.
    Type: Application
    Filed: May 16, 2014
    Publication date: September 11, 2014
    Applicant: West Troy, LLC
    Inventors: Warren Davidson, James Martin Jergens
  • Publication number: 20140251462
    Abstract: Embodiments of the invention provide a vibration damping system including a fixed element, a moveable element arranged to move linearly along an axis relative to the fixed element in response to a non-mechanical force, and an inerter element coupling the moveable element to the fixed element, and configured to convert the linear motion of the moveable element into rotational motion about the axis. The vibration damping system may be applied to many types of valves. In some embodiments, the vibration damping system may be applied to pressure relief valves. In some embodiments, the moveable element rotates to provide inertial damping. In other embodiments, the inerter element rotates to provide inertial damping.
    Type: Application
    Filed: March 5, 2014
    Publication date: September 11, 2014
    Inventor: Michael McNeely
  • Publication number: 20140230928
    Abstract: Tunable check valves reduce valve-generated vibration to increase the reliability of tunable fluid ends. Selected improved designs described herein reflect disparate applications of identical technical principles (relating to, e.g., the vibration spectrum of an impulse). Tunable check valve embodiments comprise a family including, but not limited to, tunable check valve assemblies, tunable valve seats, and tunable radial arrays. Each such tunable embodiment, in turn, contributes to blocking excitation of fluid end resonances, thus reducing the likelihood of fluid end failures associated with fatigue cracking and/or corrosion fatigue. By down-shifting the frequency domain of each valve-closing impulse shock, initial excitation of fluid end resonances is minimized.
    Type: Application
    Filed: April 25, 2014
    Publication date: August 21, 2014
    Inventors: Dennis W. Gilstad, Barbara C. Gilstad
  • Publication number: 20140216574
    Abstract: A relief valve includes a valve element and a seal lip. The valve element is configured to open and close a hole, which communicates with a pressure chamber, according to a pressure in the pressure chamber into which fluid is introduced. The seal lip is in an annular shape and equipped to the valve element. The seal lip is configured to be in contact tightly with a valve seat, which surrounds the hole, when being in a valve-close state. The seal lip is inclined toward an inner circumferential periphery of the hole and projected from the valve element toward the valve seat.
    Type: Application
    Filed: November 20, 2013
    Publication date: August 7, 2014
    Applicant: DENSO CORPORATION
    Inventor: Hirofumi Onodera
  • Publication number: 20140182690
    Abstract: A safety device for a fluid storage tank having a first port for filling the tank with fuel oil and a second port for allowing airflow therethrough is disclosed. The safety device includes a tubular body having a first open end and a second open end connectable to the second port, and a flow check valve contained within the tubular body and configured to remain open when air flows through the safety device and configured to close based on a predetermined fluid force of the fuel oil through the safety device. Related systems and methods are also disclosed.
    Type: Application
    Filed: January 17, 2014
    Publication date: July 3, 2014
    Inventor: Milton Pashcow
  • Publication number: 20140144527
    Abstract: Tunable fluid ends reduce valve-generated vibration to increase fluid-end reliability. Tunable fluid end embodiments comprise a family, each family member comprising a fluid-end housing with at least one installed tunable component chosen from: tunable check valve assemblies, tunable valve seats, tunable radial arrays and/or tunable plunger seals. Each tunable component, in turn, contributes to blocking excitation of fluid end resonances, thus reducing the likelihood of fluid end failures associated with fatigue cracking and/or corrosion fatigue. By down-shifting the frequency domain of each valve-closing impulse shock, initial excitation of fluid end resonances is minimized. Subsequent damping and/or selective attenuation of vibration likely to excite one or more predetermined (and frequently localized) fluid end resonances represents further optimal use of fluid end vibration-control resources.
    Type: Application
    Filed: January 30, 2014
    Publication date: May 29, 2014
    Inventors: Dennis W. Gilstad, Barbara C. Gilstad
  • Publication number: 20140144528
    Abstract: Tunable fluid ends reduce valve-generated vibration to increase fluid-end reliability. Tunable fluid end embodiments comprise a family, each family member comprising a fluid end housing with at least one installed tunable component chosen from: tunable check valve assemblies, tunable valve seats, tunable radial arrays and/or tunable plunger seals. Each tunable component, in turn, contributes to blocking excitation of fluid end resonances, thus reducing the likelihood of fluid end failures associated with fatigue cracking and/or corrosion fatigue. By down-shifting the frequency domain of each valve-closing impulse shock, initial excitation of fluid end resonances is minimized. Subsequent damping and/or selective attenuation of vibration likely to excite one or more predetermined (and frequently localized) fluid end resonances represents further optimal use of fluid end vibration-control resources.
    Type: Application
    Filed: January 30, 2014
    Publication date: May 29, 2014
    Inventors: Dennis W. Gilstad, Barbara C. Gilstad
  • Publication number: 20140124065
    Abstract: Provided is a check valve assembly including a check valve having a body and a stem having at least one radially inwardly deflectable member having an end with a radially outwardly projecting catch, and a valve shield retained on the stem between the body and the end of the at least one radially inwardly deflectable member by the radially outwardly projecting catch. In this way, a mechanical bond is provided between the check valve and the valve shield, thereby eliminating the need to clean the body of the check valve to remove contaminants to allow an adhesive to hold the check valve to the valve shield.
    Type: Application
    Filed: November 6, 2013
    Publication date: May 8, 2014
    Applicant: Parker-Hannifin Corporation
    Inventor: Thang Quoc Dang
  • Patent number: 8714193
    Abstract: A poppet valve with an integrated dampener is disclosed. In some embodiments, the valve includes a poppet guide with a stem and a hollow poppet is disclosed. The hollow poppet receives the poppet guide stem therein, thereby defining an internal cavity. The poppet is movable relative to the poppet guide to adjust the volume of the internal cavity. The poppet is also moveable relative to a valve seat between a seated position and an unseated position. The poppet may include a body with a seal groove and an elastic seal disposed within the seal groove. The seal is configured to engage the valve seat prior to the poppet body when the poppet moves toward the seated position. The valve may include a poppet guide pivot system that enables pivoting of the poppet guide and the poppet relative to an axial centerline of the valve.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: May 6, 2014
    Assignee: National Oilwell Varco, L.P.
    Inventor: Adrian Marica
  • Patent number: 8714189
    Abstract: A flow valve that may act as either an excess flow valve or a pressure relief valve has a seat and a valve body for sealing against the seat. The valve body has an integral spring arm for biasing the valve body towards or away from the seat to seal or open a flow of fluid, and a magnet cooperating with the spring arm to position the body relative to the seat to maintain the body in a first position during a normal flow condition and maintain the body in a second position in an abnormal flow condition.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: May 6, 2014
    Assignee: Brasscraft Manufacturing Company
    Inventors: Mark Moses Koeroghlian, Michael Merlyn Klein
  • Patent number: 8714192
    Abstract: A water conducting household appliance having at least one water supply line to supply the household appliance with water from a water network; an inlet valve arrangement connected to the water supply line and the water network; and a backflow prevention apparatus arranged in the inlet valve arrangement. The backflow prevention apparatus allows water to flow only in the direction of the household appliance and prevents water to flow in the direction of the water network.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: May 6, 2014
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Werner Haltmayer, Bruno Reiter
  • Publication number: 20140102561
    Abstract: Quick-release connectors and connection assemblies comprising the quick-release connectors include an inlet coupling and an outlet coupling. A compressible check valve in the inlet coupling may be formed from a resilient elastomeric material. A plunger body in the outlet-coupling proximal portion may include a plunger neck portion, a plunger channel, and a plunger inlet. An outlet valve in the outlet coupling may prevent reverse fluid flow in the outlet coupling. In a disconnected state of the connector, a check valve contact surface of the compressible check valve seals against a sealing member to prevent fluid flow thorough the inlet coupling. In a connected state of the connector, the plunger neck portion protrudes through the sealing member and compresses the compressible check valve to place the plunger inlet in fluidic communication with a valve clearance opened between the check valve contact surface and the sealing member.
    Type: Application
    Filed: October 10, 2013
    Publication date: April 17, 2014
    Applicant: DIBA INDUSTRIES, INC.
    Inventor: Paul J. Wright
  • Patent number: 8689824
    Abstract: A check valve construction is provided having: a movable disc with a flat surface on a first side and a convex shaped surface on the opposing side, a first seat on for the flat surface and a second seat for the convex surface, where the narrowest portion of the fluid path is defined by the equation: G 3 = 12 ? ? ? ? W ? ? Q ? ? ? D ? ? ? ? ? P Wherein G: the gap of most narrow passageway between the flat surface of the disc and disc seat; ?: dynamic viscosity of the fluid; D: mean diameter of the flat sealing surface of the disc; Q: desired fluid flow rate; W: breadth of the flat sealing surface of the disc; ?P: pressure differential across the gap (G).
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: April 8, 2014
    Assignee: IDEX Health & Science, LLC
    Inventor: Zhenxing Dong
  • Publication number: 20140083532
    Abstract: A gas charging check valve uses a first elastic element and a second elastic element, which respectively provide elastic force on a top valve and a bottom valve. The top valve and the bottom valve correspond to each other as a set. When the gas charging device is moved to apply an external force on a movement control portion of the gas charging check valve, the second elastic element removes the elastic force applied on the bottom valve to reduce the required gas inject force for a valve formed by the top valve and the bottom valve so that the gas can enter the valve more easily.
    Type: Application
    Filed: December 12, 2012
    Publication date: March 27, 2014
    Applicant: GUDENG PRECISION INDUSTRIAL CO,Ltd
    Inventor: Hsaio-Chia Lo
  • Patent number: 8662105
    Abstract: In order to prevent the unloader from rotating relative to the valve seat, it is proposed to design the anti-rotation lock for the unloader as an anti-rotation locking disk (16) on which a central recess (17) is provided which has a cross-section that is diametrically opposed and matched to the valve nut (10), wherein the anti-rotation locking disk (16) is arranged with its central recess (17) in a non-rotational manner on the valve nut (10), and the outer contour of the anti-rotation locking disk (16) has a non-circular cross-section, and a central recess (24) is provided on the unloader (20), said central recess having an inner contour diametrically opposed and matched to the outer contour, and the unloader (20) is arranged with its central recess (24) on the anti-rotation locking disk (16).
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: March 4, 2014
    Assignee: Hoerbiger Kompressortechnik Holding GmbH
    Inventors: Martin Lagler, Gerhard Stiegelmar
  • Publication number: 20140026986
    Abstract: A pressure relief valve includes a valve body having an inlet and an outlet and defining a first fluid path fluidly connecting the inlet and the outlet of the valve; a valve member axially moveable between a first position and a second position, the valve member configured to close the fluid path in the first position and thereby restrict flow between the inlet and the outlet, the valve member configured to open the fluid path in the second position and thereby allow flow between the inlet and the outlet; a biasing element configured to bias the valve member in the first position; and a friction element resiliently biased laterally against an axially extending surface of the valve member to provide frictional resistance to movement of the valve member and thereby cause hysteresis in axial movement of the valve member between the first position and the second position.
    Type: Application
    Filed: July 26, 2013
    Publication date: January 30, 2014
    Inventors: Geoffrey R Zhang, Rodney K Craven
  • Publication number: 20140007954
    Abstract: Disclosed are check valve assemblies operable to inject treatment fluids during stimulation operations. One check valve assembly includes a valve body defining an inlet, one or more discharge ports, and a cylindrical passageway that fluidly communicates the inlet with the one or more discharge ports, the valve body further providing a cylindrical section in which the one or more discharge ports are defined, a valve cap disposed about an exterior of the cylindrical section and defining an opening that fluidly communicates with the cylindrical passageway, and a spherical piston disposed within the passageway and movable between a closed configuration, where the spherical piston prevents fluid communication between the inlet and the one or more discharge ports, and an open configuration, where fluid communication is allowed between the inlet and the one or more discharge ports.
    Type: Application
    Filed: May 7, 2013
    Publication date: January 9, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Jan Veit, Jean-Marc Lopez
  • Publication number: 20140000731
    Abstract: According to various aspects, exemplary embodiments are disclosed of check valves and fluid control valve assemblies including the same. In an exemplary embodiment, a valve assembly generally includes a valve housing including a check valve chamber and an opening. The valve assembly further includes a check valve for controlling fluid flow relative to the check valve chamber. A plug is sealingly engaged within the opening, to thereby seal the check valve chamber and restrict fluid flow from the check valve chamber out the opening through the valve housing. A flux-coated solder ring may be along an outer surface of the plug, without any flux-coated solder ring along an inner surface of the plug.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Applicant: Emerson Electric Co.
    Inventors: George J. Sciuto, Christian J. Mutschler
  • Publication number: 20130276889
    Abstract: A pump assembly includes a rotating component and a stationary component coupled to the rotating component such that the stationary component substantially circumscribes at least a portion of the rotating component. A high pressure outlet extends at least partially through the rotating and stationary components. An inlet is positioned a predefined distance from the high pressure outlet. The inlet extends at least partially through the rotating and stationary components. A solid fuel flow is channeled from the inlet to the outlet as the rotating component rotates. A flow control member is coupled to the rotating and stationary components in a first predefined position. The flow control member is selectively moveable from the first predefined position to a second predefined position to form a seal within the pump assembly such that the solid fuel flow and a fluid flow are substantially restricted from being channeled back into the inlet.
    Type: Application
    Filed: April 18, 2012
    Publication date: October 24, 2013
    Inventors: Derek Leslie Aldred, Jeffrey Allen Rader
  • Patent number: 8556133
    Abstract: A valve comprising an inlet and an outlet, the valve having a valve element moveable between a first equilibrium position and a second open position, wherein when the valve element is in the first position, the inlet and the outlet are not in flow communication and when the valve element is in the second position the inlet and the outlet are in flow communication, and wherein the valve element is moveable between the first position and the second position in response to the pressure at the inlet and the outlet.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: October 15, 2013
    Inventor: John Merlin Copplestone-Bruce
  • Publication number: 20130240061
    Abstract: A pressure relief valve for a hydraulic press tool comprises a valve body, a fluid return channel, a needle and a seat, and the needle is movable between a closed position, in which the needle is in contact with the seat to block the channel, and an open position, wherein the needle is at a distance from the seat to allow fluid to flow in the channel, and the fluid flow then causes movement of the seat away from the needle and completes the opening of the fluid return channel.
    Type: Application
    Filed: February 13, 2013
    Publication date: September 19, 2013
    Applicant: Stanley Works (Europe) GmbH
    Inventors: André RACAULT, Patrick VERVIER