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| Number | Title | Issue Date |
| 8171954 | Reclosable vacuum-tight pressure-relief device having a deformable seal member A pressure-relief valve assembly is improved in that sealing surfaces on both the valve seat and valve head are confrontationally disposed annular planar surfaces oriented substantially perpendicular to the valve axis. A resilient valve seal is formed of a material ... | 05/08/2012 |
| 8047227 | Pressure limiting valve The invention relates to a pressure limiting valve. The pressure limiting valve comprises a valve holder a valve insert connected to the valve holder a valve piston slidably supported in the valve insert and a compression spring acting on the valve piston in the clo... | 11/01/2011 |
| 7954510 | Pump valve retainer A retainer for movably securing a valve member within a fluid bore of a pump comprises a retainer head which includes at least one peripheral groove and a retainer hub which is connected to or formed integrally with the retainer head. The valve member is movably cou... | 06/07/2011 |
| 7681589 | Pump valve retainer A retainer for movably securing a valve member within a fluid bore of a pump comprises a retainer head which includes at least one peripheral groove and a retainer hub which is connected to or formed integrally with the retainer head. The valve member is movably cou... | 03/23/2010 |
| 7370668 | Valve for winterizing a pool A valve assembly for use in winterizing a swimming pool closes to prevent pool water from entering into a pool pipe situated below the water line and opens to allow fluid or air to be pumped out of the pool pipes, including an adaptor having threads for attachment t... | 05/13/2008 |
| 7334603 | Check valve A check valve has an elastic valve body portion and an inelastic valve body portion and a valve seat. The valve body is fixed to a valve shaft, and a valve body abutment plate for abutting the elastic valve body portion is supported to the valve shaft. The valve bod... | 02/26/2008 |
| 7225830 | Fluid control valve A fluid control valve having a spring biased shuttle plunger member which opens or closes fluid flow through a plurality of radially spaced apart fluid passageways disposed between an upstream chamber and downstream chamber in the valve body responsive to a fluid pr... | 06/05/2007 |
| 7207326 | Gas barbeque assembly A barbeque assembly including a support structure for a barbeque grill housing that may be easily and quickly assembled. Assembly of the support structure may be completed with few or no tools. The support structure includes first (62) and second support (... | 04/24/2007 |
| 7191796 | Dual outlet air valve The dual outlet air valve is design feature that would greatly enhance the convenience of the standard valve stem design. In order to accomplish this the dual outlet air valve comprises a multi-port design whereby air can be released or injected through more then on... | 03/20/2007 |
| 7178784 | Valve assembly and method The present invention discloses, among other things, a valve assembly that includes a body, a valve, a biasing mechanism, and a guide. The body includes a shaped cavity and the valve includes an elongated portion and a shaped valve head that has an exterior surface ... | 02/20/2007 |
| 7137491 | Shock absorber non-vibrating check valve assembly A check valve assembly for a shock absorber includes a tapered valve seat and a polygonal check valve which includes a plurality of flat surfaces. Each pair of flat surfaces intersects at a linear engagement surface which slidably engages a cylindrical chamber. When... | 11/21/2006 |
| 7096884 | Check valve A check valve comprising a poppet urged by a conical spring to annularly seal uniformly around its entire periphery to assure more uniform cracking pressure about its entire periphery. The cracking pressure may be adjusted by means of an adjustable plate which reduc... | 08/29/2006 |
| 7074020 | Sanitary pump and sanitary valve A sanitary pump and sanitary valve is provided employing a dual action piston for providing a constant pressure metering and delivery of fluids utilizing a drive shaft positively driven and controlled by a drive motor for sanitary applications. The sanitary pump may... | 07/11/2006 |
| 7066201 | Valve device having solid engaging structure A valve device includes a housing including a peripheral valve seat extended into a chamber, to separate the chamber into two separated spaces. A valve member includes an outer peripheral groove to receive a sealing ring for engaging with the peripheral valve seat o... | 06/27/2006 |
| 7017563 | Valve for controlling a fluid flow A valve for controlling a fluid flow, in particular for crankcase venting of an internal combustion engine, including a base body (37), a valve body (22) and a biasing means (23), the base body (37) having a valve side (45) and an ... | 03/28/2006 |
| 6997208 | Valve suitable for use in an oil circuit of an internal combustion engine A valve, in particular for the oil circuit of an internal combustion engine. The valve includes a supporting dome, a valve body situated therein, a valve disk which is connected to the supporting dome and has an opening which can be closed by the valve body, and an ... | 02/14/2006 |
| 6971405 | Check valve for fuel pump A check valve for a fuel pump of a vehicle includes a valve housing adapted to be disposed in an outlet member of the fuel pump. The check valve also includes a valve guide disposed within the valve housing and a valve seat disposed within the valve housing and spac... | 12/06/2005 |
| 6899312 | Pressure relief valve for flowing media A pressure relief valve for flowing media has a closing element (6), whose closing force can be set with both the setting of the closing force and the brief release of the closing element (6) performed with a single setting element. Teeth (22, 23 | 05/31/2005 |
| 6868772 | Fluid control valve A control valve is provided which may be incorporated within a fluid operating system. The valve has an internally-mounted check element which allows the valve to provide a fail-safe mode for a downstream device in fluid communication with the control valve. The inv... | 03/22/2005 |
| 6394770 | Piston pump The invention relates to a piston pump for a vehicle brake system, in particular an electrohydraulic vehicle brake system. To improve the aspiration performance of the piston pump when the brake fluid is viscous at low the invention proposes a valve openi... | 05/28/2002 |
| 6234194 | Valve A valve (1, 8, 14) having a valve body (2) that is pressed against a valve seat (5, 11) by the pressure of a valve spring (3) supported against a valve cap (4, 10). The valve is held together in the area of the valve seat (5, 11) by an enclosure member (7... | 05/22/2001 |
| 6152171 | Check valve A check valve is positioned in and between opposed tube ends and includes a valve body having a valve seat engageable by a valve element having a stem extending centrally of peripherally spaced apart elements interconnected by an annular end shoulder enga... | 11/28/2000 |
| 6142037 | Transmission check valve A check valve which fits within a multi-diametered shouldered cavity formed within a pump valve body of a transmission. The check valve assembly has a movable valve element with a head to seal an annular aperture in a separator plate of the transmission. ... | 11/07/2000 |
| 6117312 | Filter bypass valve having adjustable spring biasing force A filter device has a bypass valve which releases a fluid-conveying path to an outlet when a filter element becomes clogged. The bypass valve includes a closure part on which at least one closure spring acts. To adjust the spring pretension and the openin... | 09/12/2000 |
| 5758682 | Safety shut off valve A safety shut off valve has a tubular body with an axial guide therein. A poppet is secured to a shaft slidably supported by the axial guide. A tubular seat received within the tubular body has a seating surface against which the poppet seats when in the ... | 06/02/1998 |
| 5725019 | Pressure retaining valve The invention relates to a pressure retaining valve including a housing which has a housing inlet passage and a housing outlet passage which can be connected to the housing inlet passage, a valve piston which is movable in the housing and has a valve shaf... | 03/10/1998 |
| 5636659 | Variable area compensation valve A variable area restrictor is disclosed that is preferably used in a turbine engine to provide improved matching between the pressure required for aerofoil cooling and the somewhat lower pressure requirement for supplying air to the interstage seals and d... | 06/10/1997 |
| 5482080 | Check valve A check valve with a housing having a valve seat, a valve closing member cooperating with the valve seat and an upstream dirt trapping filter, particularly for sanitary water fittings, wherein the dirt trapping filter and housing are of a unitary construc... | 01/09/1996 |
| 5455772 | Method of and apparatus for testing an engine or a compressor A method of and apparatus for testing an engine or compressor wherein one of an inlet and an exhaust valve (19) is actuated by a hydraulic piston and cylinder arrangement (11) and the flow of hydraulic fluid to the piston and cylinder arrangement (11) is ... | 10/03/1995 |
| 5425397 | In line oral inflation valve A check valve has a point-to-point articulated connection between its valve stem and valve head so that the head is free to skew when unseated. The valve head is positioned within the interior of the valve body between a valve seat and the trailing end of... | 06/20/1995 |
| 5415303 | Railcar cushion unit A railway car cushioning device is provided for minimizing slack between railway cars. The cushioning device is provided with a piston and piston rod disposed within the cylinder. The cylinder is filled with an oil and gas mixture. A housing surrounds the... | 05/16/1995 |
| 5362266 | Flushmaster fresh water flushing system A fresh water flushing system for a marine engine in a boat for use whether the boat is in or out of the water is disclosed. The system comprises a control panel mounted on the interior of the boat, a plurality of tubular "T" shaped interconnection fittin... | 11/08/1994 |
| 5230471 | Pressure washer A pressure washer for delivering liquid under high pressure has an inlet conduit connected to a liquid supply, an outlet conduit connected to a spray nozzle with a valve which is selectively openable for spraying liquid and a plurality of piston operated ... | 07/27/1993 |
| 5190072 | Relief valve assembly for recyclable pressure vessels A tubular insert is adapted to be secured into an opening in the vessel and is formed with an internally threaded section adapted to receive a closure. The closure is a subassembly which includes a core hosuing having a threaded section threadedly engagin... | 03/02/1993 |
| 5127437 | Valve A valve for controlling flow of air from a source of air under pressure such as a compressed air tank comprising an elongate body with first and second ends and first and second sides lying opposite one another. A transverse opening, extending between the... | 07/07/1992 |
| 5062452 | Valve member and method of making such a member A valve member comprising a lower support portion and an upper seal portion. The support portion is made of a relatively rigid plastic and the seal portion is made of a relatively soft plastic. The two plastic portions are integrally merged to form a sing... | 11/05/1991 |
| 4958742 | Container with safety valve A pressure relief assembly arranged in the upper central region of a container for carrying liquids under pressure. The pressure relief assembly is provided in a hole in the container and includes a cylindrical housing having one end closed off and provid... | 09/25/1990 |
| 4949751 | Compression release retarder with valve motion modifier Apparatus is provided to increase the retarding horsepower of a compression release engine retarder driven from the exhaust valve pushtube or the fuel injector pushtube which includes a plenum communicating with the exhaust valve slave piston and the mast... | 08/21/1990 |
| 4872481 | Poppet valve flow seat The edges of the port exits of a poppet valve seat member are each provided with a 30 degree chamfer and a counter-bore immediately upstream of the chamfer to significantly reduce exit flow losses. The depth/width of the counter-bore is between about 2:1 ... | 10/10/1989 |
| 4860995 | Valve element for use in pumps for handling fluids containing abrasive materials A valve element for use in a high pressure pump, the valve element having a body portion with a top side and a bottom side, a guide means attached to and projecting away from the bottom side of the body portion and an insert secured to the top side of the... | 08/29/1989 |
