Spring Abuts Guide For Supported Valve Stem Patents (Class 137/493.5)
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Patent number: 11525525Abstract: An apparatus for noise reduction in valves is disclosed. A disclosed example valve includes a valve body including a fluid passageway, and a cage located in the fluid passageway, the cage including a wall having openings, a fluid to flow from an inner surface of the wall to an outer surface of the wall through the openings, each of the openings including respective ribs, the ribs to follow a helical path along a length of each opening to cause rotation of the fluid flowing through the openings.Type: GrantFiled: November 30, 2020Date of Patent: December 13, 2022Assignee: Fisher Controls International LLCInventors: Daniel James Eilers, Allen Carl Fagerlund
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Patent number: 10830365Abstract: A check valve includes a housing, a first valve, and a second valve. The housing has a first portion that defines a first chamber and a second portion that defines a second chamber. The first valve is disposed within and is movable relative to the housing. The second valve is at least partially extends into the first valve. Responsive to a fluid flow in a first direction, the second valve and the first valve moves towards a proximal end of the housing and the fluid flow flows around the first valve towards a component.Type: GrantFiled: October 12, 2018Date of Patent: November 10, 2020Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Navaneethakrishnan Pandian, Vishnu Subramanian, Rajasekaran Janakiraman
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Patent number: 8561637Abstract: A valve includes a housing configured to interengage with a container, a first and second poppets axially movable between open and closed positions, a first seal between the first poppet and the housing, a second seal between the first poppet and the second poppet, and first and second resilient members disposed within the housing and urging the first and second poppets toward the closed position.Type: GrantFiled: September 8, 2010Date of Patent: October 22, 2013Assignee: Girard Equipment, Inc.Inventors: Joseph Petrarca, Chris Lynch, Tim Girard, Michael Fernandez
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Patent number: 8469051Abstract: 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: GrantFiled: May 28, 2008Date of Patent: June 25, 2013Assignee: Eagle Actuator Components GmbH & Co.Inventors: Jörg Bittner, Stefan Hettinger
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Patent number: 7665579Abstract: A flow control valve includes a pressure compensating valve and a first switching valve. The pressure compensating valve is configured to enlarge an opening area of a variable orifice between a load pressure line and a compensating pressure line when a pressure of working fluid of the compensating pressure line is smaller than a first set pressure, and narrow the opening area of the variable orifice when the pressure of the working fluid of the compensating pressure line is larger than the first set pressure. The first switching valve is configured to switch between a meter-out operation and a neutral operation by an external operation, wherein the working fluid of the compensating pressure line is drained in the meter-out operation, the working fluid of the compensating pressure line is not drained in the neutral operation. The load pressure line guides the working fluid to be supplied to an actuator.Type: GrantFiled: January 31, 2006Date of Patent: February 23, 2010Assignee: Mitsubishi Heavy Industries, Ltd.Inventor: Masakazu Itose
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Patent number: 7451780Abstract: A valve apparatus is disclosed for use in regulating the flow of fluid between a closed hydraulic loop and a fluid source in a hydraulic circuit, where the valve apparatus provides up to four different functions including a check valve, a neutral valve, a relief valve and a pressure rise rate valve. The apparatus includes a valve seat for selectively permitting fluid communication between the closed hydraulic loop and the fluid source, a sleeve member and a relief poppet in the valve seat, a relief compression spring inside the sleeve and positioned adjacent the relief poppet and the base of the slidable member, a valve guide and an accumulator piston slidably mounted within the valve guide to define an accumulator volume therein.Type: GrantFiled: May 16, 2006Date of Patent: November 18, 2008Assignee: Hydro-Gear Limited PartnershipInventor: Robert E. Trimble
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Patent number: 7320334Abstract: A valve for use in regulating the flow of fluid between a first fluid side and a second fluid side of a hydraulic circuit. A bore is extended through a valve seat, and the bore and valve stem cooperate to form a fluid passage from the first side to the second side. A plurality of ribs are located on one side of the valve seat and extend in a direction generally parallel to the bore.Type: GrantFiled: June 13, 2006Date of Patent: January 22, 2008Assignee: Hydro-Gear Limited PartnershipInventors: Robert E. Trimble, Tage Christiansen, Anders Kryhlmand, Thomas Kopel
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Patent number: 7066199Abstract: A valve assembly for use in regulating the flow of fluid between a first fluid side and a second fluid side of a hydraulic circuit. The valve includes a valve guide, a valve stem engaged to the valve guide and a valve seat. A bore is extended through the valve seat, and the bore and valve stem cooperate to form a fluid passage from the first side to the second side.Type: GrantFiled: September 15, 2005Date of Patent: June 27, 2006Assignee: Hydro-Gear Limited PartnershipInventors: Robert E. Trimble, Tage Christiansen, Anders Kryhlmand, Thomas Kopel
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Patent number: 6619497Abstract: Apparatus for venting a container containing a fluid and including a poppet mounted to the bottom of a cap or flap mounted to a housing for being mounted to the container, a fastener for fastening the cap of flap to the housing and which fastener may be a fusible fastener for unfastening the cap or flap and for venting the container to the atmosphere upon heat applied externally to the container reaching a predetermined temperature. The poppet venting the container to the atmosphere upon the pressure in the container reaching a predetermined pressure and the poppet may be a combination poppet for venting the container to the atmosphere upon pressure in the container reaching a predetermined pressure and for venting the container to the atmosphere upon a vacuum in the container reaching a predetermined vacuum.Type: GrantFiled: September 26, 2001Date of Patent: September 16, 2003Assignee: Girard Equipment Co.Inventor: John L. Freiler
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Patent number: 6196258Abstract: The pressure control valve is structured such that a first port is formed on one side of a casing, a second port is formed on the other side, and, in the casing, there are disposed not only a positive pressure valve which, when the pressure on the first port side becomes high, can be moved to the second port side to thereby communicate with the second port side, but also a negative pressure valve which, when the pressure on the first port side becomes low, can be moved to the first port side to thereby communicate with the second port side. In the pressure control valve, there is provided flow passage expanding means which, which the positive pressure valve has moved to the second port side beyond a given distance, allows the first port side to communicate with the second port side.Type: GrantFiled: April 16, 1999Date of Patent: March 6, 2001Assignee: Calsonic CorporationInventors: Shinji Araki, Satoshi Kimura, Hideaki Kanazawa