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"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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| Number | Title | Issue Date |
| 7451780 | Multifunction valve for use in a hydraulic component 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 val... | 11/18/2008 |
| 7219683 | Cut valve with check valve A cut valve with a check valve includes a body case, a cap member, positive and negative pressure valves, and first and second springs. The body case defines a vent hole. The cap member is fitted to an upper portion of the body case. The positive pressure valve is m... | 05/22/2007 |
| 7178787 | Valve assembly An improved valve assembly (100) includes a primary spring (142) which extends along a valve stem (144). A spring retainer (150) holds the primary spring (142) on the valve stem (144) and has a thread convolution (152... | 02/20/2007 |
| 7171977 | Combination pressure relief and topping valve A combination or hybrid pressure relief and topping valve for use with inflatable devices such as life rafts and escape slides. The valve including a valve body with a fluid passage therein that includes an internal shoulder. The valve further includes a first poppe... | 02/06/2007 |
| 7163223 | Lockout mechanism for a suspension system A suspension system that includes a simplified lockout mechanism and an adjustable blow-off mechanism. The system includes a valve mechanism and a valve actuating assembly, a valve mechanism housing and a resilient member disposed between the valve mechanism and the... | 01/16/2007 |
| 7096883 | Combined check/pressure control valve The invention relates to a combined check and pressure control valve (10), comprising a check valve element (34) which is adjustable between an opened position and a closed position, and a pressure control valve element (42) which on exceeding a... | 08/29/2006 |
| 7086388 | Combination valve for fuel system A combination valve for fuel delivery system of a vehicle having an engine, the fuel delivery system being configured to pump fuel to the engine and the fuel delivery system has a regulator for regulating the pressure of the fuel when it is being pumped to the engin... | 08/08/2006 |
| 7073527 | Assignable pressure governor valve In an apparatus for regulating the internal pressure of a closed system, a valve housing connected to a closed system, an intake valve connected to a valve housing for receiving a pressurized substance in one direction through the valve housing into the closed syste... | 07/11/2006 |
| 7066199 | Valve assembly 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,... | 06/27/2006 |
| 7028708 | Combined check valve and pressure relief valve A combination check valve and pressure relief valve is provided for use in regulating the flow of fluid between a first fluid side and a second fluid side. The valve may include a valve body, a valve insert positioned within an aperture of the valve body, a check po... | 04/18/2006 |
| 7021326 | Combination inflation and relief valve A combination inflation and relief valve having an inflation gasket mounted on a reciprocating stem head that separates from a valve seat of a valve body against the force of an inflation spring upon inflation and having a relief gasket mounted on a reciprocating pu... | 04/04/2006 |
| 7004193 | Valve arrangement and traffic calming device incorporating such an arrangement A reactive speed hump (2) includes a fluid flow control valve assembly (4). A first valve (18, 20, 21) is naturally open and a second valve (10, 14, 15, 16, 17), naturally closed. Application of fluid pressure on the control valve assembl... | 02/28/2006 |
| 6964280 | Valve assembly for use in a hydraulic component A combination check valve and pressure relief valve is provided for use in regulating the flow of fluid between a first fluid side and a second fluid side. The combination check valve and pressure relief valve includes a valve plug, a valve guide moveably positioned... | 11/15/2005 |
| 6910502 | Decoupled check-relief valve A decoupled check-relief valve for use in a hydraulic fluid circuit is provided that has a cylindrical guide housing which travels during the check function of the valve. The cylindrical guide housing has a clearance parameter, allowing for the selection of an optim... | 06/28/2005 |
| 6805161 | Hydraulic valve system A hydraulic valve system (1) has a supply connection arrangement, having a high-pressure connection (P) and a low-pressure connection (T), a working connection arrangement, having two working connections (A, B), which can be connected with a hydraulic motor (... | 10/19/2004 |
| 6305412 | Double acting pressure relief valve with low pressure seal A pressure relief valve that includes a sealing arrangement with a cantilevered seal that prevents fluid from escaping from a system if the differential pressure is only slightly positive yet permits fluid to be released from the system if the internal sy... | 10/23/2001 |
| 6279247 | Combination relief vent and dipstick apparatus for an oil filled pin joint The implement linkage of a work machine comprises at least one oil dilled pin joint. During operation of the linkage, pressure can build up in the pin joint, thus causing damage to the pin joint. It is desirable to vent this pressure without allowing oil ... | 08/28/2001 |
| 6196258 | Pressure control valve and evaporation fuel discharge control device 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 p... | 03/06/2001 |
| 6142167 | Tanker roll shut-off vent valve assembly A vent valve assembly with roll over shut-off capability includes a housing, a vent valve that opens to allow vapor to escape from the tank in response to tank vapor pressure greater than a predetermined positive pressure and that opens to allow air or va... | 11/07/2000 |
| 6056029 | Fuel-Transfer system A fuel-transfer system is provided for a fuel system of a vehicle. The fuel-transfer system includes a filler neck and a fuel tank having top and bottom walls. The fuel-transfer system includes a tube and a fuel conductor. The fuel conductor includes a ho... | 05/02/2000 |
| 5402818 | Fuel shut-off device In a first valve mechanism 30, a positive pressure spring 31 presses a first valve plug 34 to seat an external ring projection 37 of the first valve plug 34 onto a bottom surface 39 of a support cylinder 35. The first valve mechanism 30 opens at a first v... | 04/04/1995 |
| 5378118 | Cartridge assembly with orifice providing pressure differential An improved cartridge assembly (10) is used in a pump to bypass excess fluid flow and vent excess fluid pressure. The cartridge assembly includes a housing (24) which is located in and fixedly secured to a pump body (14). An orifice (62) is disposed withi... | 01/03/1995 |
| 5307831 | Safety relief valve for pressure vessels A fluid pressure safety relief system for a pressure vessel (10) having a main valve member (46) seating on a nozzle ring (38) under a mechanical force of a predetermined amount resulting from a calibrated counterweight (54). An operating rod (55) is conn... | 05/03/1994 |
| 5282492 | Dual valve plate two-way pressure relief valve There is disclosed a two-way valve which includes dual valve plates to be sitioned between first and second chambers having varying pressure therein, to relieve excess pressure in either chamber by permitting fluid flow from one chamber to the other. The ... | 02/01/1994 |
| 5226442 | Vacuum/pressure release valve A combination pressure relief valve is formed by a cylindrical valve body secured to a vessel containing fluid to be monitored. The end of the valve body opposite the vessel is normally closed by superposed dual valves comprising primary and secondary val... | 07/13/1993 |
| 4691734 | Valve seals A pressure relief valve adapted in use to relieve excess pressure within a vessel. The valve comprises a valve seat (20) and a moveable valve member (28) which is resiliently biased towards the valve seat (20) by coil springs (30) to maintain the valve in... | 09/08/1987 |
| 4460013 | Pressure-vacuum vent The pressure-vacuum vent is adapted to communicate an internal storage chamber with atmosphere at predetermined pressure and vacuum conditions. The vent includes a poppet valve member that moves upwardly within a body to vent the chamber to atmosphere whe... | 07/17/1984 |
| 4300591 | Anti-cavitation and overload relief valve for a hydraulic system A hydraulic system including at least one hydraulic cylinder is provided with an anti-cavitation and overload relief valve having a housing, a first chamber within the housing in fluid communication with one end of the cylinder, and a second chamber withi... | 11/17/1981 |
| 4212315 | Shroud for pressure vacuum vent A pressure vacuum vent has a body with means to vent an underground tank having vapors therein when the pressure within the tank exceeds a predetermined pressure and to allow ambient air pressure to enter the tank when the tank has a vacuum exceeding a pr... | 07/15/1980 |
| 4210170 | Anti-cavitation and overload relief valve for a hydraulic system A hydraulic system including at least one hydraulic cylinder is provided with an anti-cavitation and overload relief valve having a housing, a first chamber within the housing in fluid communication with one end of the cylinder, and a second chamber withi... | 07/01/1980 |
| 4153073 | Liquid dispensing and vapor recovery system and valve assembly utilized therein A liquid dispensing and vapor recovery system in which an underground storage tank applies gasoline to a dispenser located at a filling station or the like for dispensing the gasoline to a vehicle gasoline tank, under the force of a pump located in the st... | 05/08/1979 |
| 4079855 | Monolithic radiator cap for sealed pressurized cooling system A monolithic radiator cap comprising a minimal number of inexpensive constituent parts engages the filler neck of an automotive cooling system. A valving gasket is normally held against the sealing surface of the filler neck by a spring which is responsiv... | 03/21/1978 |
| 3971406 | Vapor fuel control apparatus A vapor fuel control apparatus adapted to be connected between a gasoline tank and a filter-supporting canister of a fuel supply system to an engine, comprising a main body, first valve means movably disposed within the main body and forming a first valve... | 07/27/1976 |
| 3939866 | Fuel saving device This invention relates to means for restricting the "breathing" of closed containers of volatile fluids within desired limits of pressure and/or vacuum, and in one embodiment includes two coaxial counter-directional, pressure relief valves for use in auto... | 02/24/1976 |
