Bi-directional Flow Valves Patents (Class 137/493)
  • Patent number: 9683706
    Abstract: Provided is a Cylinder Valve capable of switching a fluid sealing state to a fluid releasing state or vice versa with certainty and also capable of preventing a flow noise from being caused when the fluid is released. A Cylinder Valve—includes a Residual pressure Valve mechanism located in a Residual pressure Valve mechanism insertion space formed in a flow path.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: June 20, 2017
    Assignee: NERIKI VALVE CO., LTD.
    Inventor: Shinji Maekawa
  • Patent number: 9643834
    Abstract: A system and method are provided for automated intake and discharge of fluids to and from specified inclusion zones at a drilling site and related sites. A surface map is annotated with shapes designating at least inclusion zones for managed control of permitted intake and discharge of fluids to and from permitted zones. For specified water sources, the inclusion zone is a loading zone associated with specified conditions and another inclusion zone is an unloading zone also having specified conditions. A control system in a vehicle uses the annotated map and GPS to assist the operator of the vehicle avoid restricted intake from and discharge to restricted zones and limit volumes and rates based on monitored parameters. Records are maintained to confirm the fluid, fluid location and volumes.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: May 9, 2017
    Assignee: Summit Liability Solutions Inc.
    Inventors: Russel Lloyd Orcutt, Jason Pecht, Kyle Laturnus, Corey Kenneth McAllister
  • Patent number: 9610838
    Abstract: An apparatus and system are disclosed for a fuel receiver. The apparatus includes a base having an inlet and an outlet that defines an interior channel through which fluid is flowable. The apparatus also includes a first valve movable relative to the base between a closed position and an open position allowing fluid flow through the inlet. The apparatus also includes a second valve independently movable relative to the base and the first valve, the second valve movable between a closed position and an open position allowing fluid flow through the inlet. The system includes the apparatus, and a fluid reservoir or tank in fluid communication with the apparatus.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: April 4, 2017
    Assignee: Flomax International, Inc.
    Inventors: Mark Paul Ballard, Carl Paul Ballard, John Trent Kendrick
  • Patent number: 9494242
    Abstract: A connecting structure includes housing, a first fixing member, a second fixing member, a sealing member, and an elastic member. A stepped hole is defined on the housing, and includes a first vent, a second vent, and a third vent communicating with each other. A diameter of the second vent is gradually decreased from the first vent toward the third vent, thereby forming a resisting surface on a periphery of the second vent. The first fixing member and the second fixing member are mounted on opposite ends of the housing. The sealing member includes a sealing portion with an exhaust opening. The sealing member is received in the first and second vents, and resisting against the first fixing member. The exhaust opening communicates with the first and second vents. The elastic member is received in the third vent, and resisting between the second fixing member and the sealing member.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: November 15, 2016
    Assignees: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: She Xiong, Bing Li
  • Patent number: 9469190
    Abstract: An aircraft fuel tank system is disclosed in which a vent tank is provided with an additional ullage vent for use, in combination with an eternal flame barrier means, when refuelling.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: October 18, 2016
    Assignee: AIRBUS OPERATIONS LIMITED
    Inventors: Christopher Lynas, Peter William James, Keith MacGregor
  • Patent number: 9458003
    Abstract: A multi-port cap adapter for a liquid dispensing system is disclosed including a liquid container which supplies liquid to a draw-off mechanism. A cap is removably mounted on the container for selectively closing the outlet opening thereof with the cap having an opening formed therein. A top housing is positioned on the cap with a portion thereof extending downwardly into the cap. The top housing includes take-off members which extend to a draw-off mechanism such as a mixing machine, etc. A flexible, low-profile valve is associated with each of the take-off members. Each of the valves includes a dome-shaped diaphragm having a normally closed slit formed therein. When sufficient vacuum pressure is subjected to the take-off member, the associated valve opens to permit liquid to flow from the container through the valve and outwardly from the associated take-off member to the draw-off mechanism associated therewith.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: October 4, 2016
    Inventor: Rodney Laible
  • Patent number: 9451803
    Abstract: An article of footwear includes an upper and a sole. The article of footwear also includes an outer surface defined on the upper or the sole. Moreover, the article of footwear includes a chamber wall operably coupled to one of the upper and the sole. The chamber wall defines at least a portion of a chamber operable to hold a vacuum for at least partially conforming the footwear to the foot of the wearer. Moreover, the footwear includes a valve including a passage that extends through the chamber wall to be in selective fluid communication with the chamber. The valve is operable to provide suction to draw the vacuum within the chamber. The valve is partially defined by an outer rim, and the outer rim is flush with the outer surface or recessed inward from the outer surface toward the chamber.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: September 27, 2016
    Assignee: NIKE, Inc.
    Inventor: Timothy J. Smith
  • Patent number: 9441699
    Abstract: A shock absorber for a vehicle includes a pressure tube that defines a fluid chamber. A piston disposed within the fluid chamber divides the fluid chamber into an upper working chamber and a lower working chamber. The piston defines a compression passage and a rebound passage which extend through the piston between the upper working chamber and the lower working chamber. A valve disc assembly engages the piston and controls the flow of fluid between the upper working chamber and the lower working chamber. The valve disc assembly includes a bleed disc that defines an orifice with a substantially non-linear contour. The orifice extends to an outer diameter of the bleed disc, and forms a bleed channel between the upper working chamber and the lower working chamber.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: September 13, 2016
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Tim Lawler, Chad Rummel, Elizabeth Robbins, Daniel T. Keil, Jeroen K. Paenhuysen, John McGahey, Dajun Zhang
  • Patent number: 9415645
    Abstract: A valve assembly for a central tire inflation system is provided. The valve assembly includes a first housing having a first port connected to a second port via a cavity. The second port is in fluid communication with a wheel assembly. A biasing member is disposed in the cavity adjacent a first perforation formed in the first housing. A valve member is contacted by the biasing member. The valve member includes a first portion having an outer surface which is unbroken adjacent an end to allow a pressurized fluid to flow around it. The first portion reduces in diameter toward the end.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: August 16, 2016
    Assignee: Dana Heavy Vehicle Systems Group, LLC
    Inventors: Lloyd G. Racine, Jason M. Sidders, Pheng Lee, Lucas A. Balistreri
  • Patent number: 9382964
    Abstract: A cylinder apparatus includes a flow path formed at a valve member through which a fluid flows when a rod is moved, a valve configured to open and close the flow path, and a restriction member disposed at a side in a direction in which the flow path of the valve is opened. The restriction member is an annular plate-shaped member in which an attachment hole is formed. The restriction member has a plurality of spring sections extending in the radial direction and configured to bias the valve toward the valve member and a stroke restriction section extending from between the neighboring spring sections in the radial direction and configured to restrict a stroke of the valve, which are installed at an outer circumferential side thereof. The stroke restriction section extends to form the same plane as the inner circumferential side of the restriction member.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: July 5, 2016
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Masahiro Ashiba
  • Patent number: 9314608
    Abstract: A pressure actuated valve for controlling the flow of fluid through a medical device, the valve comprises a housing including a lumen extending therethrough and a flow control membrane extending across the lumen to control the flow of fluid through the lumen. The membrane includes a plurality of slits extending therethrough so that, when the membrane is acted upon by a pressure of at least a threshold magnitude, the slits open to permit flow through the lumen and, when not acted upon by a pressure of at least the predetermined magnitude, the slits are maintained closed by a biasing force applied thereto by the membrane to prevent flow through the lumen. Each of the slits extends between end portions thereof along a curve wherein a distance between a first end portion of a first one of the slits and a first end portion of a second one of the slits is a minimum distance between the first and second slits.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: April 19, 2016
    Assignee: AngioDynamics, Inc
    Inventors: Karla Weaver, Paul D. DiCarlo
  • Patent number: 9182005
    Abstract: A hydraulic damper (2) comprises a tube (3) filled with working liquid, inside of which a slidable piston assembly (4) is attached to a piston rod (6) and provided with at least one valve assembly (43) to control the flow of working liquid passing through the piston assembly (4) during rebound and compression stroke of the damper. The valve assembly (4) contains a floating disc valve (431) and additionally comprises a unidirectional check valve disc (436) disposed serially with the floating disc valve (431) across the passage of the flow of working liquid during compression or rebound stroke of the damper (2). Preferably the piston assembly (4) forms a symmetrical cross-flow arrangement and preferably the at least one valve assembly includes compression (43a) and rebound (43b) valve assemblies of the piston assembly (4) which each have the same constructions.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: November 10, 2015
    Assignee: BeijingWest Industries, Co. Ltd.
    Inventors: Janusz Goldasz, Zbigniew Szklarz, Waldemar Widla
  • Patent number: 8993181
    Abstract: A valve-closing pressure chamber and a valve-opening pressure chamber are arranged on both sides of a main diaphragm inside an outlet shutoff valve. An upper supply/discharge tube and a lower supply/discharge tube are connected to a housing forming the outlet shutoff valve. The upper and lower supply/discharge tube supply and discharge air to and from the valve-closing pressure chamber and the valve-opening pressure chamber, respectively. An opening end, which is on the pressure chamber side, of each supply/discharge tube is obliquely cut relative to the direction of axis of the supply/discharge tube, which increases the opening area of the opening end. This prevents water present in the pressure chamber from adhering to the opening end of each supply/discharge tube and prevents the adhered water from freezing. As a result, operation performance of the outlet shutoff valve is enhanced.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: March 31, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masahiro Takeshita
  • Patent number: 8967193
    Abstract: A device for ventilating and aerating a fuel tank includes a tank shut-off valve and two tank pressure control valves. One of the tank pressure control valves opens in response to an overpressure in the fuel tank and the other one of the tank pressure control valves closes in response to a negative pressure in the fuel tank. A valve unit which is formed from one or multiple of the valves is mountable vertically or horizontally and has a fuel connection which communicates with the fuel tank and a filter connection which communicates with an activated carbon filter. The two connections are generally oriented parallel and point downwards in vertical mounting position of the valve unit and in sideward direction(s) in horizontal mounting position of the valve unit and are arranged at or near the bottom side of the valve unit.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: March 3, 2015
    Assignee: Audi AG
    Inventor: Harald Hagen
  • Patent number: 8950382
    Abstract: A fuel vapor control valve comprising a housing. The housing comprising inlet and outlet ports in flow communication via first and second valve controlled passages. The first valve controlled passage being configured to admit fuel vapor flow in a direction from the inlet port to the outlet port only when pressure at the inlet port exceeds a predetermined threshold. The second valve controlled passage being configured to admit vapor flow in a direction from the outlet port to the inlet port only when pressure at the inlet port drops below pressure at the outlet port. The fuel vapor control valve further comprising a sealing arrangement disposed at an external portion of the housing between the inlet and outlet ports.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: February 10, 2015
    Assignee: Raval A.C.S. Ltd.
    Inventors: Omer Vulkan, Vladimir Olshanetsky, Alon Levy
  • Publication number: 20150034180
    Abstract: A tank pressure control valve which provides for both controlled and passive vacuum relief functions with an additional component in a tank purge valve. The tank pressure control valve includes a second valve in addition to a purge valve to create a small sealing area on one side that opens easily against the tank pressure with the normal magnetic forces in a purge valve. The second valve is a sealing disk, which has an aperture to allow for the flow of purge vapor. One side of the disk has sealing on a larger area so the small vacuum forces open the valve against the spring force biasing the valve to a closed position. The design of the second valve uses a disk to provide precise flow control and passive vacuum relief.
    Type: Application
    Filed: July 17, 2014
    Publication date: February 5, 2015
    Inventors: David W Balsdon, Brian Woods
  • Patent number: 8893744
    Abstract: A driveline component breather system that utilizes a first and a second valve assembly to control the intake and exhaustion of fluid within the driveline component to regulate internal pressures is provided. When the pressure within the driveline component increases the first valve closes or remains closed and the second valve opens and fluid is exhausted to the atmosphere. When the pressure within the driveline component decreases, the first valve opens and the second valve closes and fluid flows into the driveline component from an interior portion of an associated vehicle.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: November 25, 2014
    Assignee: Honda Motor Co., Ltd
    Inventor: Joshua Sigmund
  • Patent number: 8763633
    Abstract: A valve for controlling the flow of fluid having first (16) and second (14) plates with offsetting apertures and a sidewall (12) disposed between the plates around the perimeter of the plates to form a cavity (15) in fluid communication with the apertures is disclosed. The valve further comprises a flap (17) disposed and moveable between the first and second plates and having apertures (22) substantially offset from the apertures (20) of one plate (16) and substantially aligned with the apertures (18) of the other plate (14). The flap is motivated between the two plates in response to a change in direction of the differential pressure of fluid across the valve.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: July 1, 2014
    Assignee: The Technology Partnership PLC
    Inventors: Justin Rorke Buckland, James Edward McCrone, Stuart Andrew Hatfield
  • Patent number: 8662104
    Abstract: A slot valve (20) for use in the pneumatic switching circuit of a respirator, wherein said slot valve is designed to act bidirectionally and to pass over into the opened state to make possible the flow of a fluid at different pressure threshold values depending on the direction of flow of a fluid.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: March 4, 2014
    Assignee: Dräger Medical GmbH
    Inventors: Hans-Ulrich Hansmann, Kirll Koulechov, Tilman von Blumenthal, Andreas Hengstenberg, Andreas Neumann, Torge Wall, Andreas Otto, Markus Kaemer
  • Patent number: 8657590
    Abstract: A hydraulic power steering system which includes a tank and a power steering pump which takes in a pressure medium from an intake area which is decoupled from the prevailing atmospheric pressure on the side of the tank wall and delivers it under pressure to the power steering system. A valve device builds up a pre-pressure in the intake area and prevents a negative pressure and a positive pressure from building up on the interior of the oil tank.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: February 25, 2014
    Assignee: ixetic Bad Homburg GmbH
    Inventor: Willi Parsch
  • Patent number: 8534314
    Abstract: Disclosed is an explosion protection valve comprising a closing member (4) which is movable inside a housing (2), is guided along a guide bar (3), and can be displaced in a moving direction from a predefined open position into a sealing closed position in case of a shock wave or suction wave. The explosion protection valve further comprises a spring arrangement that is effectively connected to the closing member (4) in order to maintain the open position on the guide bar (3). Said spring arrangement is provided with a first spring element (5, 5?) and a second spring element (6, 6?) in relation to the respective moving direction. The spring elements are disposed such that the second spring element (6, 6?) can be impinged upon only following a predetermined spring travel (a) when the closing member (4) is displaced into the closed position.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: September 17, 2013
    Assignee: Rico-Sicherheitstechnik AG
    Inventor: Jurg Zellweger
  • Publication number: 20130219626
    Abstract: A cushion with a support pad comprising a plurality of compressible suspension elements with a cover top and bottom joined together to form an impervious barrier, and a valve in fluid communication with the plurality of compressible suspension elements that allows the controlled expulsion of air until a user positioned on the cushion is optimally immersed in the cushion. When the user is removed from the cushion, the valve allows ingress of air into the cushion. In one aspect, the valve comprises an expansion valve controls air flow out of and into the cushion. In one aspect, the valve comprises a labyrinth seal that dampens air flow and pressure spikes. The valve comprises a pressure responsive compression spring that controls the expulsion of air from the cushion and, consequently, adjusting the immersion depth of the seated user.
    Type: Application
    Filed: October 31, 2011
    Publication date: August 29, 2013
    Applicant: ROHO, Inc.
    Inventor: Dennis L. Clapper
  • Patent number: 8511804
    Abstract: The invention relates to an ink cartridge for an ink jet printer. The ink cartridge comprises a cartridge body and a detection mechanism for detecting the ink cartridge and residual quantity of ink, wherein the cartridge body comprises an ink tank for storing ink, an ink outlet for supplying ink to a printing head of the printer and an air inlet, the ink tank comprises a first ink chamber and a second ink chamber, a first negative pressure mechanism and a second negative pressure mechanism are arranged between the first ink chamber and the second cavity, the first negative pressure mechanism and the second negative pressure mechanism cooperatively control the ink inside the first ink chamber to be consumed preferentially than the ink inside the second ink chamber, and the second negative pressure mechanism generates negative pressure when a certain quantity of ink inside the ink tank is used for printing.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: August 20, 2013
    Assignee: Zhuhai Ninestar Management Co., Ltd.
    Inventor: Haoming Ma
  • Patent number: 8469051
    Abstract: A valve for limiting the tank pressure in a motor vehicle, comprising a first line (1) and a second line (2) which may establish a flow connection in which at least one body (3, 4) may be moved relative to another body (4, 3), whereby the movable body (3, 4) lifts up from a sealing seat (5), with regard to the object of adjusting the tank pressure using a compact design is characterized in that a first body (3), a second body (4), and the sealing seat (5) as a whole form a movable unit (6).
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: June 25, 2013
    Assignee: Eagle Actuator Components GmbH & Co.
    Inventors: Jörg Bittner, Stefan Hettinger
  • Patent number: 8375982
    Abstract: A hydraulic manifold has features adapted to the needs of hybrid vehicle applications. In one embodiment, multifunction valves selectively regulate fluid flow among primary and auxiliary flow paths. A normally closed butterfly valve is biased by a relatively small secondary biasing force against rotation in first and second (opposite) directions, and by a relatively large principal biasing force against rotation in the first direction past a transitional angular position at which the principal biasing force takes effect. An actuator selectively controls the transitional angular position and the magnitude of the principal biasing force. In the first direction, flow must overcome only the secondary biasing force to pass the valve. In the second direction, any flow sufficient to overcome the secondary biasing force but not the principal biasing force will divide into a first flow passing the valve and a second flow induced to enter an auxiliary path upstream.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: February 19, 2013
    Assignee: The United States of America, as represented by the Administrator of the U.S. Environmental Protection Agency
    Inventor: Charles L. Gray, Jr.
  • Patent number: 8348642
    Abstract: A downhole tool pumping apparatus comprising a body and an active valve block. The body comprises a cavity housing a reciprocating piston defining first and second chambers within the cavity. The active valve block comprises a plurality of active valves, wherein the plurality of active valves includes a first active valve fluidly connected to the first chamber of the body, the plurality of active valves includes a second active valve fluidly connected to the second chamber of the body, and each of the plurality of active valves is configured to be actively actuated between open and closed positions.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: January 8, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Willam E. Brennan, Bill Grant, Mark Milkovisch
  • Patent number: 8302632
    Abstract: A mount structure for a two-way valve for a fuel tank of a small boat for improving mountability of the two-way valve while ensuring strength of the deck. The interior space of the boat, which is formed of a hull and a deck, is provided with an engine, a fuel tank, and a duct. One end of the duct is attached to the wall surface of the deck with a mount member. The two-way valve is connected to the breather hose of the fuel tank, and attached to the mount member at one end of the duct from the interior space of the boat. The mount member is integrally provided with a mount pipe for the tube which opens the two-way valve outside the deck.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: November 6, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takayoshi Miura, Tsuyoshi Kumasaka, Tadaaki Nagata
  • Publication number: 20120138170
    Abstract: In accordance with the present invention, there is provided a bi-directional shut-off trim for a valve which possesses the functional attributes of a pilot operated trim and a balanced trim through the integration of a spring loaded check valve into a pilot trim. In forward flow isolation, the bi-directional shut-off trim of the present invention acts as a normal pilot operated trim. In reverse flow, the check valve of the shut-off trim opens to balance the pressure on either side of the plug thereof.
    Type: Application
    Filed: June 10, 2011
    Publication date: June 7, 2012
    Inventor: Sina ALIKHANI
  • Patent number: 8066030
    Abstract: Disclosed is a fuel conveying device including a valve housing in which a pressure release valve and a non-return valve are arranged parallel to one another, the pressure release valve having a first inlet, which downstream of a valve seat opens into a valve chamber in which a valve body is movably arranged and which is in fluid connection with a second inlet for the non-return valve via a first outlet. The device improves the control response of the pressure release valve by providing the first outlet at the periphery of the valve chamber and in the axial direction with respect to a valve axis such that when the pressure release valve is open the flow from the valve chamber into the second inlet is a substantially radial flow.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: November 29, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Peter Schelhas, Andreas Herforth, Zdenek Liner, Michael Dufek, David Krenovsky
  • Patent number: 8020583
    Abstract: The invention concerns a hydraulic valve arrangement (1) with at least two valve modules (2-6), each having a supply channel arrangement with a high-pressure channel (9) and a low-pressure channel (15), a working connection arrangement with at least one working connection (A, B), one directional valve arrangement (16) between the supply channel arrangement (9, 15) and the working connection arrangement (A, B) and a compensation arrangement (19), which is acted upon by a pressure in a load-sensing arrangement. It is endeavored to increase the number of control possibilities. For this purpose, the load-sensing arrangement of at least one valve module (2-6) has a pressure influencing arrangement (25-29) that differs from a pressure influencing arrangement (25-29) of a load sensing arrangement of another valve module (2-6).
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: September 20, 2011
    Assignee: Sauer-Danfoss Aps
    Inventors: Thorkild Christensen, Siegfried Zenker
  • Patent number: 7997297
    Abstract: The invention relates to a system for performing parallel chemical experiments. The system comprises an array of parallel flow through reactors each comprising a reaction chamber, a reactor inlet and a reactor outlet connected to the reactor chamber. Downstream of each reactor a corresponding active pressure regulating arrangement is provided for actively regulating the reactor pressure. The pressure regulating arrangement comprises a passage for reactor effluent with an inlet connected to the reactor outlet and an outlet for discharging reactor effluent at a reduced pressure with respect to the reactor pressure.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: August 16, 2011
    Assignee: Avantium International B.V.
    Inventors: Martin Smit, Gerardus Johannes Maria Gruter
  • Publication number: 20110094605
    Abstract: A vacuum relief valve includes: a housing with a central cavity, the housing having a system branch, a vacuum branch, a pilot branch, and an exhaust branch, each of the branches in fluid communication with the central cavity and having a respective port; a piston assembly comprising a first disk located in the pilot branch, a second disk located adjacent the exhaust branch, and a connecting member to which the first and second disks are mounted; and an actuator attached to a pilot seal, the actuator configured to move the pilot seal between a closed position, in which the pilot seal is positioned in and seals the pilot port, and an open position, in which the pilot seal is spaced from and does not seal the pilot port. When the pilot seal is in the closed position, the second disk is positioned on and seals the exhaust port, and when the pilot seal is in the open position, the second disk is spaced from and does not seal the exhaust port.
    Type: Application
    Filed: July 23, 2010
    Publication date: April 28, 2011
    Inventors: Richard D. Michelli, Dennis Vaders
  • Patent number: 7874820
    Abstract: A compressor apparatus (20) has a housing (22) having first (53) and second (58) ports along a flow path. One or more working elements (26; 28) cooperate with the housing (22) to define a compression path between suction (60) and discharge (62) locations along the flow path. An unloading valve (100) has a valve element (102) having a range between a first condition and a second condition, the second condition being unloaded relative to the first condition. Means (120, 160) bias the valve element toward a third condition intermediate the first and second conditions.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: January 25, 2011
    Assignee: Carrier Corporation
    Inventor: Stephen L. Shoulders
  • Patent number: 7841360
    Abstract: A proportional pressure control valve includes a valve housing (38) with at least three fluid connections (1, 2, 3). The valve can be connected to a hydraulic drive system with a pre-determinable consumer pressure. The valve can perform reliable valve switching functions even for low-viscous fluid media, and can reduce its susceptibility to disturbance variables. A valve piston (56) actively connected to a pilot seat (5) by an energy accumulator (62) can be controlled by a control device (40). The consumer pressure on a fluid connection (1) acts on the valve piston (56) such that, according to the consumer pressure and the actuating force of the control device (40), a fluid can flow between the two other fluid connections (2 and 3) in both directions inside the valve housing (38).
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: November 30, 2010
    Assignee: Hydac Fluidtechnik GmbH
    Inventors: Peter Bruck, Hermann Albert
  • Patent number: 7823404
    Abstract: A vapor-compression air conditioning system comprising a blower positioned in a return air flow path from a conditioned space, a reheat heat exchanger positioned in the return air flow path and downstream from the blower, a system reversing valve fluidly coupled to the reheat heat exchanger, and a refrigerant flow sequencer interposed the system reversing valve and the reheat heat exchanger. A method of manufacturing an air conditioning system is also provided.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: November 2, 2010
    Assignee: Lennox Industries Inc.
    Inventor: Oved Hanson
  • Patent number: 7819130
    Abstract: There is disclosed a variable metering orifice arrangement for a current divider and current adding device, the metering orifice arrangement including one or more working terminals by each of which a consumer can be supplied with pressure fluid. The metering orifice arrangement includes a metering orifice piston to which control pressure tapped off between two throttles of a pressure divider can be applied, wherein at least one of the throttles is variable.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: October 26, 2010
    Assignee: Bosch Rexroth AG
    Inventor: Karl Krug-Kussius
  • Patent number: 7757704
    Abstract: A coupling assembly includes a female unit and a male unit which is removably connected with the female unit. A valve unit is located in the female unit and includes a core with two flexible disks on two ends thereof. A flange extends radially outward from a lower end of the core and is rested on a support frame in the female unit. The core extends through a through hole in a lower end of sleeve in the female unit. A plurality of paths are defined through the lower end of the sleeve so that by shifting the core to let either of two flexible disks to seal the paths in one direction, the direction of fluid flow can be controlled. The movement of the core is made by moving the sleeve.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: July 20, 2010
    Assignee: Taiwan Vertex Production Corp.
    Inventor: Chien Ping Lien
  • Publication number: 20100108159
    Abstract: A sewer overflow relief device for mounting at a top end of a sewer overflow relief pipe includes a top cover having at least one outside air intake and an air flow control mechanism for controlling the flow of outside air into the sewer overflow relief pipe. In use, the device prevents outside water from entering the sewer and the device may be ejected from the sewer overflow relief pipe by sewage pressure pushing against the device, thereby allowing the sewer overflow relief pipe to overflow.
    Type: Application
    Filed: February 21, 2008
    Publication date: May 6, 2010
    Inventor: Gregory John Williamson
  • Patent number: 7691088
    Abstract: A vascular access device having a spring-biased septum is provided for preventing the leakage of blood during the placement and use of vascular catheters and similar devices. The structure of the device includes a housing with an internal channel. A spring-biased septum is placed securely within the channel such that it substantially blocks blood flow through the channel. The spring-biased septum includes an elastic plug having a pre-slit or pre-molded hole and a biasing element disposed about the elastic plug. A needle or other object may be withdrawn through the slit or hole, after which the biasing element forces the hole closed, preventing blood leakage.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: April 6, 2010
    Assignee: Becton, Dickinson and Company
    Inventor: Glade H. Howell
  • Publication number: 20090188505
    Abstract: A flow regulation vent for venting washout gas to atmosphere and for regulating flow from a pressurized gas supply includes a fixed portion adapted to engage a gas supply conduit; a spring force biased movable portion structured for flowing communication with the pressurized gas supply; and a hinge pivotally connecting the movable portion to the fixed portion. The fixed portion has a gas flow orifice and the movable portion is pivotally movable between 1) a relaxed position, wherein below a specified operating pressure, the movable portion is pivoted by the spring force to a position away from the fixed portion to establish a first gas washout flow area between the movable portion and the gas flow orifice, and 2) a fully pressurized position.
    Type: Application
    Filed: April 7, 2009
    Publication date: July 30, 2009
    Applicant: ResMed Limited
    Inventors: Gregory Scott Smart, Michael Kassipillai Gunaratnam
  • Publication number: 20090151700
    Abstract: A return fuel passage is configured to communicate an outlet of a low-pressure fuel pump with a back pressure side of a fuel injection device. The return fuel passage is configured to partially return fuel from the back pressure side to the fuel tank to control fuel pressure at the back pressure side in response to fuel injection. In a starting operation a backpressure control valve communicates the outlet of the low-pressure fuel pump with the back pressure side and blocks the fuel tank from both the outlet of the low-pressure fuel pump and the back pressure side. In a normal operation, the backpressure control valve communicates the back pressure side with the fuel tank and blocks the outlet of the low-pressure fuel pump from both the fuel tank and the back pressure side.
    Type: Application
    Filed: December 12, 2008
    Publication date: June 18, 2009
    Applicant: DENSO CORPORATION
    Inventor: Jun KONDOH
  • Patent number: 7527070
    Abstract: A method for controlling fluid flow through a passageway includes slidably disposing a piston having a conduit that reduces the flow area through the passageway in the passageway and selectively closing the conduit of the piston by moving at least one of the piston and a plug.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: May 5, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: William E. Brennan, III, Edward Harrigan, Christopher S. Del Campo
  • Patent number: 7527075
    Abstract: A flow regulator (10) having a regulator housing (1) which is provided with a control device (8a) having a central body (3a) in a passage channel (2). An annular throttle body (4a) produced from an elastic material bounds the central body (3a) and defines a control gap (6a) between the throttle body (4a) and an adjacent peripheral surface (5a) that is provided with control recesses (7a) that are oriented in a flow direction (Pf1, Pf2). The passage cross-section of the control gap can be varied by the throttle body which is deformed by the pressure difference caused during throughflow. In the present flow regulator (10), there are two control devices (8a, 8b) arranged one behind the other the longitudinal direction of the passage channel (2), with the two control devices (8a, 8b) being configured for different throughputs and/or pressure ranges.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: May 5, 2009
    Assignee: Neoperl GmbH
    Inventor: Uwe Zoller
  • Publication number: 20090090418
    Abstract: The present invention relates to an apparatus and method for improved check valve technology used in flow meters, particularly compound/combo meters. The improved check valve technology may comprise a single piece module that (1) can easily be removed from the check valve chamber without disturbing the metering module, (2) comprises a seal as part of the check valve assembly simplifying seal inspection, seal removal and seal replacement; (3) is secured in its housing only external fasteners; and (4) comprises fluid hammer suppression and monitoring features.
    Type: Application
    Filed: December 10, 2008
    Publication date: April 9, 2009
    Inventors: Earl H. Parris, Timothy L. Greenfield, John Michael Kay
  • Patent number: 7513111
    Abstract: A shock valve assembly for a hydraulic system includes a fluid path extending between a first port and a second port with a shock valve disposed in the fluid path to normally block fluid flow through the fluid path between the first and second ports. The shock valve temporarily opens to permit fluid flow between the first port and a second port through the fluid path when a fluid pressure differential between the ports exceeds a predetermined threshold. Fluid flow occurs in a first direction from the first port to the second port through the fluid path when the shock valve is temporarily opened and fluid pressure in the first port is greater than the second port. Fluid flow occurs in a second, reverse direction through the fluid path from the second port to the first port when the shock valve is temporarily opened and fluid pressure in the second port is greater than the first port.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: April 7, 2009
    Assignee: White Drive Products, Inc.
    Inventor: Richard Daigre
  • Patent number: 7481320
    Abstract: One advantageous embodiment of the invention is a filter device (10) for filtering a fluid and providing three or more substantially continuous directions of flow therethrough. The filter device (10) includes a housing (12) having an entry port (18) and an exit port (20). The housing (12) has a filter medium (22) disposed therein for filtering the fluid that flows along a filtration-flow direction (24a) from the entry port (18) to the exit port (20). The filter medium (22) has a bi-directional valve (28) coupled thereto for selectively directing the fluid along a bypass-flow direction (24b) and a reverse-flow direction (24c) that is generally opposite to said bypass-flow direction (24b). The bypass-flow direction (24b) extends from the entry port (18) to the exit port (20) in bypass of the filter medium (22). Also, the reverse-flow direction (24c) extends from the exit port (20) to the entry port (18).
    Type: Grant
    Filed: January 5, 2005
    Date of Patent: January 27, 2009
    Assignee: NTZ Nederland BV
    Inventors: Kirk J. Ciak, Wilhelmus Petrus Maria Schaerlaeckens
  • Publication number: 20080251135
    Abstract: A valve for use in the control of pressurised air from a pressure tank, the pressure tank including a wall in which an outlet port is formed, the wall having an inner surface and an outer surface. The valve comprises a valve body of generally cylindrical configuration having an inner end which in use is located inside the pressure tank and an outer end which in use is located outside of the tank. A flow passage extends through the valve body, the flow passage having an inlet at or adjacent the inner end of the body and an outlet at or adjacent the outer end of the body. A valve seat surrounds the flow passage and a valve closure member is moveable towards and away from the valve seat to close and open the valve respectively. An operating means is provided for moving the valve closure member in order to operate the valve.
    Type: Application
    Filed: September 1, 2006
    Publication date: October 16, 2008
    Applicant: GOYEN CONTROLS CO. PTY LTD
    Inventor: Matthew Southam
  • Publication number: 20080251138
    Abstract: An fuel volatilizing control system for a fuel tank, includes a fuel cover engaged to a fuel entrance of the fuel tank, a closure body arranged under the fuel cover and in the fuel entrance, a filter room containing filtering materials in the closure body and a double-lane valve comprising a first valve member and a second valve member. The first valve member and the second valve member can control whether the fuel gas flows to the environment or the outside air flows to the fuel tank.
    Type: Application
    Filed: May 7, 2007
    Publication date: October 16, 2008
    Inventors: Aaron Wang, Chun-Chao Huang
  • Publication number: 20080251139
    Abstract: A fuel tank includes a canister and a fuel control valve arranged in an expanding room. The canister has two guiding pipes communicated respectively with an entrance of an engine and environment. The fuel control valve is communicated with the expanding room. A double-lane valve is arranged between the canister and the fuel control valve. The double-lane valve has an entrance communicated with the fuel control valve, an exit communicated with the canister, a first valve and a second valve arranged between the entrance and the exit. The second valve withstands a spring and is arranged on the first valve. The first valve can detect an expending press produced by volatilized fuel gas to control whether the fuel gas enter into the entrance of the engine. The second valve can detects a vacuum press of the fuel tank to control whether air enter into the fuel tank.
    Type: Application
    Filed: May 7, 2007
    Publication date: October 16, 2008
    Inventors: Aaron Wang, Chun-Chao Huang
  • Publication number: 20080223457
    Abstract: A bi-directional valve having a housing with at least one internal gasket contact surface. A spring holds the plate, flapper and gasket against the internal gasket contact surface of the housing. When a predetermined pressure acts on the plate and flapper, the plate, flapper and gasket move away from the gasket contact surface to allow flow through the bi-directional valve in a first direction. To flow in the opposite direction the plate and gasket abut against the housing and the flapper opens to allow flow in an opposite direction. The same flow path is used for flow in either direction through the bi-directional valve.
    Type: Application
    Filed: February 7, 2008
    Publication date: September 18, 2008
    Inventors: Danko A. Kobziar, Steven M. SanFilippo