Pop Valves Patents (Class 137/469)
  • Patent number: 9765898
    Abstract: A valve device for switching or metering a fluid includes a housing, a flow channel defined by the housing, and a valve body arranged in the flow channel. The valve body has a sealing section which contacts a housing-side sealing seat when the valve device is closed. The sealing section at least slightly protrudes beyond a surface of the valve body facing the sealing seat.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: September 19, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Rene Deponte, Oliver Gerundt, Andreas Eichendorf, Juergen Haller, Dominik Brunner
  • Patent number: 9745724
    Abstract: A pressure compensation valve comprises a valve body, a valve sleeve fixedly mounted on the valve body, and a spool disposed in a valve hole of the valve body and capable of moving. The pressure compensation valve can change the pressure compensation characteristic, that is, the pressure compensation valve can change the difficult degree of the pressurized oil liquid flowing by changing an effective pressure acting surface of the pressure compensation valve The structure is simple, requires low cost, and increases the utilization rate of a product.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: August 29, 2017
    Assignee: JIANGSU HENGLI HYDRAULIC CO., LTD
    Inventors: Liping Wang, Caifu Yuan, Qiang Lu, Zhan Chen, Hongguang Liu
  • Patent number: 9732867
    Abstract: A relief valve having a crenelated exhaust ring surrounding the poppet. The crenelated exhaust ring comprises a series of alternating crenels and merlons which together define an increasing cross-sectional exhaust area circumferentially about the poppet during cracking (i.e., once the pressure in the inflatable device exceeds the cracking pressure) as the poppet rises in the relief valve in response to increased pressures and, conversely, a decreasing cross-sectional exhaust area about the poppet during closing as the poppet lowers to its re-seated, sealed position. The design of the crenels in the form of a larger upper cross-sectional area to a smaller lower cross-sectional opening, advantageously achieves a reseating pressure that is substantially equal to or slightly less than the cracking pressure while minimizing possible oscillations during re-seating of the poppet.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: August 15, 2017
    Assignee: Halkey-Roberts Corporation
    Inventor: Lyman Fawcett
  • Patent number: 9732868
    Abstract: A pressure relief valve is disclosed with a first stage valve that is in series with a second stage valve, with an enclosed cavity between the first stage valve and the second stage valve. The first stage valve relieves pressure from an enclosure into the enclosed cavity between the stages, when the pressure is above a cracking pressure of the first stage valve. The second stage relieves pressure from the enclosed cavity when the pressure is above the cracking pressure of the second stage valve.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: August 15, 2017
    Assignee: PREVCO SUBSEA, LLC
    Inventors: John Bertoldi, Joseph Schimek, III, John Head
  • Patent number: 9687796
    Abstract: A domestic carbonation appliance has a replaceable CO2 cylinder and accepts a refillable bottle with a removeable cap. The cap can cooperate with a carbonation head of a domestic carbonation device but lacks bayonette or thread features for engaging the carbonation head. The device provides for “one-touch” carbonation.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: June 27, 2017
    Assignee: Breville Pty Limited
    Inventors: Richard Hoare, Andrew Grigor, Stephen John McClean
  • Patent number: 9671035
    Abstract: The present disclosure provides a flow regulator capable of regulating flow resistance of a fluid by adjusting helical pitch of the flow regulator. The flow regulator comprises: a channel, a rod, and a helical coil. The channel has a fluid inlet and a fluid outlet for a fluid flowing in and out of the flow regulator, respectively. The rod has a fore end and a rear end opposite to each other. The fore end is inside the channel, and the rear end is closer to the fluid outlet than the fluid inlet. The helical coil winds around the rod, and the helical pitch of the helical coil is adjustable for regulating flow resistance of the fluid. The channel further has a narrowed section where part of the helical coil located therein substantially occupies an annular space between the rod and an inner wall of the channel.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: June 6, 2017
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Shih-Jie Wei, Hua-Chih Huang
  • Patent number: 9644622
    Abstract: A suction pump, in particular a breast pump, comprises a bleed valve with a bleed opening, a bleed body which seals the bleed opening and an operating means for operating the bleed body. The bleed body may be operated such that upon opening the valve initially only a partial region of the bleed opening is released and subsequently a greater part thereof or the whole bleed opening is released. The suction pump provides a large functionality with the smallest size and, furthermore, is cheap to produce and easily assembled.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: May 9, 2017
    Assignee: Medela Holding AG
    Inventors: Alex Stutz, Beda Weber, Erich Pfenninger
  • Patent number: 9482354
    Abstract: A pressure relief valve (100), having: an upper housing (104) defining a housing internal chamber (112) and comprising at least one window (108) between the upper housing chamber and the atmosphere; a lower housing (106) comprising a housing opening (134); a pallet (170) disposed within the housing internal chamber; and a pair of nested springs (116) disposed within the housing internal chamber and configured to bias the pallet toward the lower housing and thereby form a seal (180) between the housing opening and the housing internal chamber. When the pressure in the housing opening is at a full discharge pressure that is greater than and within fourteen percent of the start-to-discharge pressure, the pair of nested springs is configured to permit the pallet to travel a sufficient distance to expose a flow area of the at least one window that is at least greater than a flow area (138) of the housing opening.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: November 1, 2016
    Assignee: Girard Equipment, Inc.
    Inventors: Timothy P. Girard, Michael Fernandez, John LaFave, Glen Harm, Joseph Petrarca
  • Patent number: 9447686
    Abstract: An axial piston machine includes a housing having a casting which is optimized with respect to casting. An insert ring which is optimized with respect to a pressure load is formed in the bottom of the housing. The insert ring is configured to be used with such an axial piston machine.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: September 20, 2016
    Assignee: Robert Bosch GmbH
    Inventor: Clemens Krebs
  • Patent number: 9423029
    Abstract: A sealing interface (26) that utilizes an elastomeric sealing member (28) is disclosed herein. The sealing interface (26) is configured to provide effective sealing while requiring only relatively low amounts of force to deform the elastomeric sealing member (28) sufficiently to form an effective seal.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: August 23, 2016
    Assignee: COMMSCOPE CONNECTIVITY BELGIUM BVBA
    Inventors: Philippe Coenegracht, Maddy Nadine Frederickx
  • Patent number: 9360127
    Abstract: The invention relates to a control valve having a valve seat and a valve disk (1), which can be moved from a closed position, in which the valve disk (1) rests on the valve seat and the relief valve is closed, into a through-flow position, in which the relief valve is open, wherein the valve disk (1) comprises a valve disk surface (2) having a peripheral surface rim (4) and a normal which is perpendicular to the valve disk surface (2), runs through the center of gravity of the latter and defines a longitudinal axis L. A brim is arranged on the surface rim (4), wherein said brim has a first part (6) which projects beyond the valve disk surface (2) in the axial direction with respect to the longitudinal axis L and has a second part (8) which adjoins the first part (6) and comprises a section that is radial with respect to the longitudinal axis L.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: June 7, 2016
    Assignee: PROTEGO (USA), Inc.
    Inventors: Frank Helmsen, Tobias Kirchner
  • Patent number: 9341199
    Abstract: A torque converter hydraulic control subsystem for a transmission is provided. The torque converter hydraulic control subsystem includes a source of pressurized hydraulic fluid that communicates with a torque converter clutch (TCC) regulation valve, a TCC control valve, and a lubrication boost valve. The torque converter hydraulic control subsystem is configured to provide cooling and lubrication fluid flow to a torque converter in all modes of operation.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: May 17, 2016
    Assignee: GM Global Technology Operations, LLC
    Inventors: Christopher G. Benson, Todd R. Berger
  • Patent number: 9283942
    Abstract: Disclosed is a vehicle compressed air supply device, comprising pressure maintenance valves for service brakes, which are positioned between a junction chamber and compressed air channels for primary brakes; a pressure maintenance valve for the parking brake, which is positioned between the junction chamber and a compressed air channel for the parking brake; and a pressure maintenance valve, positioned on a supply path that connects the pressure maintenance valve for the parking, brake with the junction chamber, and which is closed until the pressure of the compressed air that is supplied to the compressed air channels for the primary brakes reaches a prescribed pressure value. The pressure maintenance valve has the same structure as the pressure maintenance valves for service brakes and the pressure maintenance valve for the parking brake.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: March 15, 2016
    Assignee: NABTESCO AUTOMOTIVE CORPORATION
    Inventors: Ichiro Minato, Hiroki Hasebe
  • Patent number: 9243719
    Abstract: An adjustable safety relief valve is provided for use on a pressure vessel or a flow line with a pressurized fluid therein. In the preferred embodiment, the safety relief valve comprises a body with a closed bonnet and a chamber therein and an inlet and an outlet; the inlet including a valve seat; a disk member with an attached stem member closable on the valve seat; a mechanism in the body biasing the disk member to rest on the valve seat; a guide member supported in the bonnet to guide and limit disk member movement; and a skirt member affixed to the body, which surrounds the disk member and defines a uniform flow area with the inlet. The presented safety relief valve has improvements, which remove detriments to disk member movement and function, resulting in a safety relief valve with predictable performance and improved reliability.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: January 26, 2016
    Inventor: Jeremy Ryan Choate
  • Patent number: 9174227
    Abstract: A nozzle for an irrigation sprinkler is provided, where the nozzle includes a sealing pad for reducing the distance relative to a seal of an irrigation device when the nozzle is in a retracted position to restrict the entry of grit and other debris into the irrigation device.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: November 3, 2015
    Assignee: Rain Bird Corporation
    Inventors: David Eugene Robertson, Samuel C. Walker
  • Patent number: 9163736
    Abstract: A device for preventing a primary relief valve in a mud system from opening at a pressure lower than a nominal opening pressure includes a flow restrictor between a mud pump of the mud system and the primary relief valve. In addition, the device includes a cavity between the flow restrictor and the primary relief valve.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: October 20, 2015
    Assignee: NATIONAL OILWELL VARCO NORWAY AS
    Inventor: Age Kyllingstad
  • Patent number: 9133942
    Abstract: A valve structure for a fluid pressure device. A valve element for constituting a pressure reducing valve is provided with a first housing which is interconnected with a stem, a second housing which is provided on the outer peripheral side of the first housing, and packing which is provided between the first housing and the second housing. The packing is mounted and sandwiched between a tapered section of the first housing and an outer wall section of the second housing, and thereby the packing is affixed. A first tube section of the first housing is inserted into a second tube section of the second housing, and the first housing and the second housing are affixed integrally to each other by, for example, welding or adhesion.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: September 15, 2015
    Assignee: SMC KABUSHIKI KAISHA
    Inventors: Shinichi Ito, Michihiro Hanada
  • Patent number: 9080676
    Abstract: Disclosed herein is a differential pressure poppet valve comprising: a valve body, the valve body having at least one flow inlet and at least one flow outlet; at least one shutter guide disposed inside the valve body; at least one poppet shutter guided by the shutter guide; at least one flow passage from the flow inlet to the flow outlet, the flow passage being formed between an inside surface of the valve body and an outside surface of the shutter guide and of the poppet shutter. The valve further comprises at least one biasing member configured to bias the poppet shutter towards a closed position so as to block the flow passage through the flow inlet. To reduce impact wear at least a first damper is provided, configured and arranged to at least partly absorb impact energy of the poppet shutter when the poppet shutter opens or closes the flow inlet.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: July 14, 2015
    Assignee: Nuovo Pignone S.P.A.
    Inventors: Riccardo Bagagli, Leonardo Tognarelli, Guido Volterrani, Michele Sanesi
  • Patent number: 9068660
    Abstract: A valve device having at least one inflow area and first and second outflow areas, which are connected with one another with regard to the flow through two poppet valves. Through the first poppet valve, a fluid inflow from the inflow area to the first and second outflow areas can be adjusted and a fluid outflow, through the second poppet valve between the first and the second outflow areas can be adjusted. The second poppet valve is designed as a cone poppet valve with a cone shaped closure body. Located upstream of the second poppet valve, between the first and the second outflow area, is a flow guide device which is designed to provide the fluid, which flows in the direction of the second poppet valve, with a swirl. The closure body of the second poppet valve has a cone angle of 60°+/?10°.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: June 30, 2015
    Assignee: ZF Friedrichshafen AG
    Inventors: Karlheinz Mayr, Markus Moosmann, Frank Hamma, Hubert Remmlinger
  • Patent number: 9062644
    Abstract: A pressure limiting valve having a housing head and a housing jacket. An axial inlet opening in a valve base is axially separated from an outlet opening. An inner valve seat connects to the inlet opening and an axially mobile valve piston is arranged to produce a closing force against a pressure (p) acting at the inlet opening. The valve body is formed as a stepped piston with a first step having a first surface that is acted upon in the axial direction by the pressure. The stepped piston has a first axial length that defines a first peripheral throttling gap with an inner surface (of the valve seat. The stepped piston also has a second step with a second surface that may be acted upon in the axial direction by the pressure, and together with the first surface (A1), forms a total pressure surface. The second step has a second axial length (L2) that defines a second peripheral throttling gap.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: June 23, 2015
    Assignee: VOSS AUTOMOTIVE GMBH
    Inventor: Ulrich Erb
  • Patent number: 8978696
    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 auxilliary channels for self cleaning.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: March 17, 2015
    Assignee: Flomatic Corporation
    Inventor: Allan Bo Andersson
  • Patent number: 8911218
    Abstract: In one embodiment, a small-diameter opening (42b) is formed in the central portion of a valve element (42) included in a check valve (40) of a high pressure fuel pump (1). A needle valve (44) is provided integrally with a valve element (35a) of an electromagnetic spill valve (30), and the opening (42b) of the valve element (42) can be opened and closed with a tip portion of the needle valve (44). When the high pressure fuel pump (1) switches from the drive state to the stopped state, the needle valve (44) retreats from the opening (42b) of the valve element (42) in conjunction with the movement of the valve element (35a) of the electromagnetic spill valve 30, thus forming a micro gap.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: December 16, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mitsuto Sakai, Tatsuhiko Akita, Tsutomu Furuhashi, Tatsumi Oguri
  • Publication number: 20140290758
    Abstract: In a pressure reducing valve, a valve rod forms one portion of a side wall of a piston, and is connected to the piston inwardly of a sliding contact area, which is held in sliding contact with an inner wall of a body. More specifically, a connection location between the valve rod and the piston is located at the interior of the piston.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 2, 2014
    Applicants: KEIHIN CORPORATION, HONDA MOTOR CO., LTD.
    Inventors: Kazuki Ishikawa, Taneaki Miura, Koichi Takaku
  • Publication number: 20140261782
    Abstract: A pressure relief valve assembly includes a housing, a diaphragm assembly separating the housing into a sensing pressure section and a tank pressure section, the sensing pressure section configured to sense both atmospheric pressure and the pressure in the tank pressure section and the tank pressure section is configured to only sense the pressure in the tank pressure section, an orifice disposed between the sensing pressure section and the tank pressure section allowing fluid to flow in through the orifice when the pressure in the sensing pressure section is less than the pressure in the tank pressure section fluid to flow out through the orifice when the pressure in the sensing pressure section is greater than the pressure in the tank pressure section.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: EATON CORPORATION
    Inventors: Anh Vu, Vismay Walle, Harshad Pawale, Sandip Gaikwad, Sahebrao Tekale
  • Publication number: 20140261718
    Abstract: A main stage in-line pressure control cartridge. The cartridge selectively controls flow in-line in the same direction as opposed to directing flow at a 90 degree angle like other cartridges. A tubular poppet can be mounted into a body and has a sliding control sleeve that can expose radial holes in the poppet to an open position and to seal the radial holes in a closed position. The cartridge can be configured in numerous ways in order to serve many functions, such as a pressure relief valve, a counterbalance valve, and a flow control valve. The cartridge can also be configured to allow or prevent reverse flow.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: David Albrecht, David Albrecht, JR.
  • Publication number: 20140224198
    Abstract: A hydraulic valve for use with a lockable cam phaser. The hydraulic valve is configured to limit the flow of pressure medium to both the advance and retard chambers, while allowing a locking pin of the cam phaser to drain. The hydraulic valve effectively limits flow during the self-centering operation of the can phaser. This is important for the system function, since it allows the phaser to select a side (i.e., the advance or retard chamber) to bleed off, reducing pressure on that side, which allows the cam phaser to move towards the mid-park (i.e., locking) position.
    Type: Application
    Filed: February 13, 2014
    Publication date: August 14, 2014
    Inventors: James Anthony Morehead, Matthew Bradfield, Daniel Stanhope
  • Publication number: 20140224342
    Abstract: A flow control valve for use in oil well bore holes is described. The flow control valve includes a plurality of flow paths connected in parallel. The flow control valve operates by successively opening different flow paths, starting with a flow path that requires a reduced force to operate its inlet valve. The flow rate through the flow control valve is conveniently controlled by opening and closing different ones of the plurality of flow paths individually or in combination. A flow path that allows fluid to flow at substantially the full flow rate of the valve is provided as one of the parallel paths. A simple mechanical design using poppet valves and at least one cam is described. The flow control valve provides advantages including digital control of the flow rate, low operating power requirements and abrasion resistance in the presence of particulates in the fluid.
    Type: Application
    Filed: February 6, 2014
    Publication date: August 14, 2014
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Xiaoqi Bao, Mircea Badescu, Stewart Sherrit, Jeffery L. Hall, Yoseph Bar-Cohen
  • Patent number: 8740579
    Abstract: A high-pressure fuel supply pump includes a discharge valve, which is a non-return valve between a pressurizing chamber and a discharge port. The discharge valve includes a valve body housing, a discharge valve spring, a valve body and a seat member. The discharge valve is a flat valve. When the valve is opened, a flow of fuel moving from the pressurizing chamber and axially colliding with the valve body is radially distributed in the radial direction of the valve body to become a flow directly moving the discharge ports and a flow colliding with an inner wall of the valve body housing before moving toward the discharge ports and then in a circumferential direction of the valve body.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: June 3, 2014
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Shunsuke Aritomi, Hideki Machimura, Kiyotaka Ogura, Masami Abe, Kenichiro Tokuo
  • Publication number: 20140116515
    Abstract: A break-away coupling within a fuel dispensing line configured to arrest the flow of fluid when broken away. The coupling includes a first end configured to engage a fluid dispensing nozzle and a second end configured to engage a fluid dispensing system. Then, a break-away body is disposed between the first end and the second end and the coupling includes a sensor configured to determine if the first end is separated from the second end in any manner. Such a separation may be caused by a large force applied to one end, such as a truck driving away with the fueling nozzle will engaged in the fuel talk. Thus, upon separation at the break-away point, the sensor may trigger a shut-off procedure at the fuel dispensing system.
    Type: Application
    Filed: October 23, 2013
    Publication date: May 1, 2014
    Applicant: Macro Technologies, LLC
    Inventor: Howard M. KONISHI
  • Patent number: 8701631
    Abstract: A valve member of a pressure relief valve has a shaft portion, a pressure receiving portion, and a guide portion, wherein the valve member is axially movable in a fuel return passage. When a forward end of the shaft portion is seated on a valve seta, the fuel return passage is closed, while the shaft portion is separated from the valve seat the fuel return passage is opened. A notched portion is formed at an outer wall of the guide portion to thereby form an outer-surface passage. A fuel inlet port is formed in the valve member for communicating a fuel inlet chamber to the fuel return passage at a downstream side of the valve member.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: April 22, 2014
    Assignee: Denso Corporation
    Inventors: Shinobu Oikawa, Yoshinori Yamashita, Katsunori Furuta, Masayuki Kobayashi, Shigeto Tsuge
  • Publication number: 20140033876
    Abstract: A hydraulic flow sensing apparatus is provided. The apparatus includes: a manifold; a hole in the manifold in fluid communication with a fluid pathway; a poppet valve in the hole in the manifold configured to move when fluid in the pathway flows; and a proximity switch configured to detect movement of the poppet valve. A method of operating a hydraulic circuit may also be provided.
    Type: Application
    Filed: August 3, 2012
    Publication date: February 6, 2014
    Applicant: SPX Corporation
    Inventor: Michael T. LANDRUM
  • Publication number: 20130306166
    Abstract: A pressure limiting valve having a housing head and a housing jacket. An axial inlet opening in a valve base is axially separated from an outlet opening. An inner valve seat connects to the inlet opening and an axially mobile valve piston is arranged to produce a closing force against a pressure (p) acting at the inlet opening. The valve body is formed as a stepped piston with a first step having a first surface that is acted upon in the axial direction by the pressure. The stepped piston has a first axial length that defines a first peripheral throttling gap with an inner surface (of the valve seat. The stepped piston also has a second step with a second surface that may be acted upon in the axial direction by the pressure, and together with the first surface (A1), forms a total pressure surface. The second step has a second axial length (L2) that defines a second peripheral throttling gap.
    Type: Application
    Filed: July 12, 2012
    Publication date: November 21, 2013
    Inventor: Ulrich Erb
  • Patent number: 8557454
    Abstract: A method of shutting down operation of a fuel cell system comprising a fuel cell stack, the method comprising the sequential steps of: i) ceasing a supply of fuel to the fuel cell stack; ii) closing a shut-off valve on an exhaust line in fluid communication with a cathode system of the fuel cell system, the cathode system comprising a cathode fluid flow path passing through the fuel cell stack; iii) pressurising the cathode system with an air compressor in fluid communication with a cathode air inlet port in the fuel cell stack; and iv) ejecting water from the cathode flow path.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: October 15, 2013
    Assignee: Intelligent Energy, Ltd.
    Inventors: Paul Adcock, Peter David Hood, Scott Baird
  • Patent number: 8517049
    Abstract: An adjustable pressure relief valve for use in hydraulic circuits, particularly for controlling pressure transients—acceleration and deceleration—of hydraulic motors subject to inertia forces (progressive anti-shock pressure relief valves) is characterized by reduced leakage, involving a reduced influence of flow forces during valve control, as well as reduced pressure losses; these characteristics prevent the hydraulic motor from rotating when it is subject to a drive load and is not powered, eliminate vibrations and instability of valve-regulated pressure, especially at low flow rates, and ensure an adjustment value varying according to the flow rate through the valve. A further characteristic of the valve is the reduced number of its components, resulting in greater cost effectiveness.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: August 27, 2013
    Assignee: Walvoil S.p.A.
    Inventor: Matteo Mazzoni
  • Publication number: 20130213492
    Abstract: A valve assembly in accordance with the present invention includes a head portion and a body portion. A throughbore extends through both the head portion and the body portion. A normal fluid flow path is formed within the valve assembly to provide for the controlled exit of a fluid. The valve assembly also includes an automatic pressure-relieving mechanism. The pressure-relieving mechanism includes a disc designed to burst or rupture at a predetermined pressure and an over-pressure fluid flow path for controlling the egress of over-pressure fluid.
    Type: Application
    Filed: February 6, 2013
    Publication date: August 22, 2013
    Inventors: Shmuel Dovid Newman, Jeffery Brown
  • Patent number: 8479764
    Abstract: The invention relates to a safety valve (1) with an inlet (2) and an outlet (3) and a closing element (4) which seals the inlet (2) and moves under overpressure, thus opening a way from the inlet (2) to the outlet (3), wherein the closing element (4) is connected by at least one arm (5) to at least one spring element (6), against the force of which the closing element (4) moves during opening. According to the invention an arm (5) is provided, which connects closing element (4) and spring element (6), wherein the arm (5) is swivel-mounted respectively about an axis (7, 8) on the closing element (4) and on the spring element (6) and is rotatable around a further axis (9) arranged between the cited axes (7, 8) and is longitudinally displaceable with respect thereto, whereby an optimal adjustment of a spring force with respect to forces acting on the closing element (4) is given.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: July 9, 2013
    Assignee: BHDT GmbH
    Inventor: Wolfgang Lussner
  • Publication number: 20130112281
    Abstract: Disclosed in one aspect is a valve comprising (a) a valve body having a poppet valve chamber with an axis running there through; (b) a seat having a seat sealing surface, and a outer-seat surface, the seat located axially within the poppet valve chamber; and (c) a poppet having a poppet sealing surface, the poppet being located axially within the poppet valve chamber; wherein a poppet-seat interface is created between at least a portion of the seat sealing surface and at least a portion of the poppet sealing surface, the poppet-seat interface being at an angle ? of from 20 to 90° to the axis. In one embodiment the seat is removable, allowing the geometry of at least the poppet head surface and/or the seat inside surface, which defines a fluid flow-path cross-section, to be tailored.
    Type: Application
    Filed: December 21, 2012
    Publication date: May 9, 2013
    Applicant: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher K. Morgan, Eric R. Lewis, Michael W. Ackman
  • Publication number: 20130019955
    Abstract: Disclosed is a differential pressure valve comprising: a valve body, the valve body having at least one flow inlet and one flow outlet: at least one shutter, the shutter being movable between an open position and a closed position under a differential pressure across the valve; at least one flow passage from the flow inlet to the flow outlet; at least one biasing member configured to bias the shutter towards a closed position so as to block the flow passage through the flow inlet. The biasing member is a non-linear biasing member.
    Type: Application
    Filed: July 19, 2012
    Publication date: January 24, 2013
    Inventors: Riccardo BAGAGLI, Leonardo Tognarelli, Carmelo Maggi, Alberto Babbini
  • Patent number: 8291932
    Abstract: A valve means has a valve housing, in which an inlet duct for pressure fluid extends, the duct opening into a valve chamber, in which a valve member is held by spring means in a closed position engaging a valve seat, the valve member opening at a predetermined opening pressure of the pressure fluid present so that pressure fluid arrives by way of an opening cross section at a fluid outlet and flows from it, and the valve means comprises a control duct by way of which pressure fluid flows into a control chamber, in which a control member is held clear of a control seat by spring means in an open position, the control chamber being connected by way of a connecting duct with the valve chamber; and in which the control member so controls the exit flow of the pressure fluid that the control member is able to be shifted, prior to opening of the valve member at a control pressure below the opening pressure into engagement with its control seat so that the passage of fluid between the control chamber and the valve ch
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: October 23, 2012
    Assignee: Festo AG & Co. KG
    Inventors: Steffen Ilmberger, Volker Quendt, Tobias Danner
  • Patent number: 8069950
    Abstract: A device that relieves lubricant pressure in a divider block lubrication system into a fluid reservoir, a container, or directly back into the compressor frame to which the tubing is connected. This eliminates housekeeping, environmental, safety, and compressor component failure concerns associated with current atmospheric rupture assemblies that relieve directly to the atmosphere. The environmental compressor protection assembly contains a spring set to a pre-determined pressure. Lubricant pressure in excess of this pre-determined set pressure results in spring compression and opening of a relief path. The assembly preferably remains in a full open position and must be must be manually reset to the closed position to prevent fluid flow in the system. The relief path can lead to a fluid reservoir, a container, or directly back into the compressor frame. Flow of lubricant through the relief path results in loss of flow to the lubrication system.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: December 6, 2011
    Assignee: Coltec Industrial Products LLC
    Inventor: Curtis Roys
  • Patent number: 8061382
    Abstract: A reusable sanitary valve assembly with a releasable cap or cover that disengages from the valve indicating an over-pressure situation has occurred, the cap or cover is capable of being reset, and once it is known that gas, liquid or other contaminants have possibly entered the valve following an over-pressure situation, the interior of the valve can be inspected by removing a portion of the valve while the valve remains sealed on a pressurized substrate and, if the interior of the valve is contaminated, the interior of the valve can be cleaned and closed without unseating the valve.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: November 22, 2011
    Inventors: Dwayne Holden, Gerald Glass, Drew Holden
  • Publication number: 20100096035
    Abstract: A negative pressure valve assembly is provided. The valve assembly comprises a valve port assembly comprising a port and a flange substantially surrounding the port, a valve comprising a plate adapted to substantially cover the port, the plate comprising a minor edge, a major edge having a major edge length, and a plate biasing assembly stop located at a first position along the major edge, the first position more than 50% of the major edge length as measured from the minor edge. The valve assembly further comprises a hinge coupled to the plate, the hinge adapted to couple the plate to the flange, and first plate biasing assembly adapted to couple to the valve port assembly and to bias the plate towards the valve port assembly, the first plate biasing assembly comprising a resilient member adapted to contact the stop plate.
    Type: Application
    Filed: October 16, 2008
    Publication date: April 22, 2010
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Andrew Appleby, Jennifer Reich, Christopher Thomas, Dave Tornquist
  • Patent number: 7628169
    Abstract: A safety relief valve is provided that comprises a body comprising a chamber therein and an inlet and an outlet, the inlet comprising an inlet valve seat; a disk member closable on the inlet valve seat; and a mechanism in the body biasing the disk member to rest on the inlet valve seat with a set force such that when the pressure in the inlet exceeds a set pressure resulting from the set force, the disk member is lifted from the inlet valve seat, the mechanism comprising a combination of a coil spring and one or more disk springs stacked in series with the coil spring. A method of preparing a coil spring for use in a pressure relief valve comprises measuring the spring rate of the coil spring and; modifying the spring so as to modify its spring rate to be within ±2% of a desired spring rate.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: December 8, 2009
    Assignee: Mercer Valve Company, Inc.
    Inventors: Jeremy R. Choate, Michael J. Easton, Wesley L. Taylor
  • Publication number: 20090242041
    Abstract: For downsizing, cost reduction, and better characteristic, a pressure control valve (1) consists of a valve main body (2) having a valve chamber (2a); a valve seat (2d) within the valve chamber; a valve body (3) moving close to and away from the valve seat; and a disc spring (11) for energizing the valve body toward the valve seat, the valve body moves away from the valve seat when force acting in a direction for moving the valve body away from the valve seat by pressure within the valve chamber exceeds elastic force of the disc spring, a dimension of the valve main body in a valve body movement direction is lessened by use of the disc spring, a manufacturing cost is reduced by use of the disc spring made for general purpose, and the disc spring is preferable for high-pressure control due to its high spring rigidity.
    Type: Application
    Filed: March 24, 2009
    Publication date: October 1, 2009
    Applicant: Fujikoki Corporation
    Inventors: Ryo Matsuda, Hiroshi Yokota, Daisuke Watari, Shu Yanagisawa
  • Publication number: 20090229333
    Abstract: A system for hydroforming a workpiece containing fluid at elevated pressure includes a die in which the workpiece is formed, a source of control pressure, a tank at low pressure, and a valve that includes a displaceable control element that alternately moves between an open state and a closed state, opening and closing, respectively, a passage that hydraulically connects the fluid in the workpiece and the tank in response to the relative magnitudes of a first force applied to the control element by the control pressure source and a second force applied to the control element by pressure of the fluid in the workpiece acting on the control element in opposition to the first force.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 17, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: David R. Jensen, Mike M. Ghiran, Paul D. Larsen, Terry A. Kent
  • Publication number: 20090194174
    Abstract: Disclosed in one aspect is a valve comprising (a) a valve body having a poppet valve chamber with an axis running there through; (b) a seat having a seat sealing surface, and a outer-seat surface, the seat located axially within the poppet valve chamber; and (c) a poppet having a poppet sealing surface, the poppet being located axially within the poppet valve chamber; wherein a poppet-seat interface is created between at least a portion of the seat sealing surface and at least a portion of the poppet sealing surface, the poppet-seat interface being at an angle ? of from 20 to 90° to the axis. In one embodiment the seat is removable, allowing the geometry of at least the poppet head surface and/or the seat inside surface, which defines a fluid flow-path cross-section, to be tailored.
    Type: Application
    Filed: February 1, 2008
    Publication date: August 6, 2009
    Inventors: Christopher Kim Morgan, Eric Richard Lewis, Michael Wayne Ackman
  • Patent number: 7565914
    Abstract: A control stop for a flush valve for a urinal or toilet fixture includes a housing defining a flow chamber divided by a valve seat into inlet and outlet sections. A valve structure is biased toward the valve seat by a spring applying a valve closing spring force. The housing is sealed by a diaphragm, and the diaphragm covers the movable valve structure, isolating it from water flowing through the housing. The diaphragm does not impede valve structure movement, and the closing spring force establishes a threshold water supply pressure for opening the control stop during increasing pressure following a no or low supply pressure condition. A plurality of control stops may supply a bank of flush valves and fixtures, and open in a cascading sequence during increasing pressure as a result of having springs with different closing spring forces.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: July 28, 2009
    Assignee: Sloan Valve Company
    Inventor: Dwight N. Johnson
  • Publication number: 20090133672
    Abstract: A system and method are provided for detecting a leak in an automotive fuel system. The functions of vacuum sensing, vacuum relief (high vacuum relief level) and pressure relief (high pressure relief level) are all performed by a single self-actuated diaphragm-seal valve mechanism.
    Type: Application
    Filed: May 2, 2008
    Publication date: May 28, 2009
    Inventor: Adrian Crisan
  • Patent number: 7513270
    Abstract: A safety relief valve provides for the equalization of backpressure across a valve spindle by providing for flow of fluid between equal sized upper and lower surfaces of the spindle in order to render the valve set point independent of backpressure, such that opening characteristics are controlled solely by the setting of the valve control spring. A seal preferably formed of TEFLON® is provided to prevent the escape of fluid from the valve body, which would otherwise adversely affect the pressure balance between the upper and lower surfaces.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: April 7, 2009
    Assignee: Flow-Safe, Inc.
    Inventors: Kevin P. Martin, Nelson R. Timm
  • Patent number: 7469714
    Abstract: A valve, especially a gas safety valve includes a fluid-guiding path (32) that can be sealed by a sealing device (30) provided with a sealing surface (34). The sealing surface can be brought against an abutment surface (36) of an abutment part (38), and is at least partially inserted into a receiving region (40) of a receiving part (42). As the sealing device (30) is fixed inside the receiving region (40) in such a way that a counter-holding part (54) can be brought into contact with the sealing device (30) by connection to the receiving part (42), the sealing device is arranged inside the receiving region of the receiving part and is securely held in the receiving region.
    Type: Grant
    Filed: September 18, 2004
    Date of Patent: December 30, 2008
    Assignee: Hydac Technology GmbH
    Inventor: Stephan Müller