Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 8074678 | Reversible flow valve assembly A flow valve is provided that comprises a valve chamber including first and second valve port openings in communication with first and second inlet/outlets. The valve further includes a shaft rotatably disposed in the valve chamber, and a first valve plate rotatably... | 12/13/2011 |
| 7445020 | Relief valve assembly The present invention has completely broken from the unreasonable construction of conventional type of relief valve which places weight and lifting disc inside of upper body or lower body. In other words, lifting disc and weight are placed outside of upper body. It ... | 11/04/2008 |
| 7383855 | Sanitary tank vent valve A combination pressure relief and vacuum relief valve for mounting on a storage tank is disclosed as having two vertical mounting connections of different elevations; a pressure relief valve mounted on one connection; and a vacuum relief valve mounted on the other c... | 06/10/2008 |
| 7363940 | Flow-rate restrictor insert for orifice expansion device A generally cylindrical restrictor insert for containing an axially movable, apertured restrictive member, housed in a flow control distributor housing of an orifice expansion device used for bi-directionally-flowing pressurized fluid, with a housing passageway bein... | 04/29/2008 |
| 7322956 | System and method for mixing at least four components System for mixing four components including a first syringe arrangement and a second syringe arrangement each with two chambers for holding components. Each of the two respective chambers of the syringe arrangements are connected in a uniquely defined fashion due to... | 01/29/2008 |
| 7320334 | Valve Assembly 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. ... | 01/22/2008 |
| 7299654 | Pressure-reducing device for an air-conditioning circuit The invention proposes a pressure-reducing device designed to be installed in an air conditioning circuit operating with cooling fluid (FR) and including a housing suited to be traversed by cooling fluid under the control of a needle valve (134). The pressure... | 11/27/2007 |
| 7296586 | Gas-regulating unit for regulating a gas pressure in a gas-tight tank A gas-regulating unit for regulating an internal gas pressure in a gas-tight liquid-storage tank is mounted on the gas-tight tank in which stored liquid is sealed from outside atmosphere by covering a top surface of the stored liquid with an isolating-gas. The gas-r... | 11/20/2007 |
| 7258254 | Dispensing end cap An end cap is attached to a container body to form a liquid media package for dispensing liquid media. The end cap includes an aperture in fluid communication with the liquid media in the package. The end cap also includes at least one radial arm extending outwardly... | 08/21/2007 |
| 7213689 | Shock absorber for a remote-controlled model car A shock absorber for a remote-controlled model car includes a sealing member fixed on the topside of a piston. The sealing member has two opposite flexible portions respectively matching with the flow-guiding holes of the piston, with flow gaps formed between the fl... | 05/08/2007 |
| 7207350 | Pressure valve The invention relates to a pressure valve with a flow passage (3) having a valve body (14) and a lifting plate (21) that has a surface area A2 transversally of the flow passage (3) that exceeds the cross sectional area A1 ... | 04/24/2007 |
| 7201183 | Valve arrangement in a hydraulic circuit, use of the same and arrangement for controlling a hydraulic vehicle drive A valve arrangement in a hydraulic circuit comprises a longitudinal duct 3 and a transverse duct 2. A throttle slide 10 can be displaced in the direction of the longitudinal duct 3. Arranged in the throttle slide 10 is a valve pist... | 04/10/2007 |
| 7182097 | Anti-saturation directional control valve composed of two or more sections with pressure selector compensators The invention relates to the field of hydraulic directional control valves and refers to an anti-saturation directional control valve (V) composed of two or more sections in each of whom there is a pressure selector compensator with a six-way two-position spool (... | 02/27/2007 |
| 7143783 | Fuel tank cap safety valve with splash control and overpressure release A fuel tank cap provides a safety valve mounted on a tubular vent stem for venting fluids from a fuel tank. The safety valve is adapted for engagement with the tubular vent stem so that the fluids may enter the safety valve. A pair of upper cavities communicate with... | 12/05/2006 |
| 7143773 | Intermittent pressure module for a vacuum regulator An intermittent pressure module for controlling the position of a valve between two positions comprising diaphragm means; a plurality of ports associated with said diaphragm means for exposing said diaphragm means to a selected pressure in said first position, and a... | 12/05/2006 |
| 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 |
| 7080659 | Damper valve and hydraulic power steering apparatus using the same A damper valve includes a valve member for covering openings of communicating passages of a valve sleeve. The valve member is elastically deformed by a low flow rate of the hydraulic oil flowing from a second chamber to a first chamber of the valve sleeve and when a... | 07/25/2006 |
| 7021313 | Respiratory suction catheter apparatus with improved valve and collar An improved respiratory suction apparatus catheter includes a manifold for attachment to the distal hub of an endotracheal tube to form a respiration circuit, a catheter tube which is displaceable through the manifold and into the endotracheal tube to suction secret... | 04/04/2006 |
| 6929240 | Solenoid valve A valve 6 fixed on a tip 5a of a rod 5 as a moving part, abuts a sealing part 9 of a fluid passage 8 when the rod 5 moved to the left, and interrupts a flow of fluid, is made, for instance, of elastic materials such a... | 08/16/2005 |
| 6926030 | Apparatus for mixing two fluids or keeping them separate A mixing apparatus for mixing two fluids immediately following contact with each other is disclosed. The mixing apparatus includes a spring-loaded ball valve separating a first fluid from a second fluid. The ball valve closes as a result of at least spring force. Th... | 08/09/2005 |
| 6729345 | Sealing valve arrangement A sealing valve arrangement (12) for a container containing a fluid, wherein a supporting element (14) comprising a control channel (15) in the border region of the supporting element (14) and a securing element (16) comprising a p... | 05/04/2004 |
| 6629621 | Gauge hatch with liquid seal A gauge hatch is provided that has a cover structure that incorporates a pallet/diaphragm combination and that is cooperatively associated with a pressure responsive liquid seal subassembly. The gauge hatch also incorporates a vent neck and a radially adj... | 10/07/2003 |
| 6612321 | Damping valve for power steering In a damping valve for pressure medium-actuated operating circuits, a spring element is installed between housing, cover and counter-contour. In the opening direction, the spring element is pressed against the counter-contour by the pressure medium flowin... | 09/02/2003 |
| 6604544 | Safety valve of tank for storing and carrying oil or chemical substance Disclosed is a safety valve installed in a tank of a vessel carrying oil or chemical substance to discharge supersaturated gas produced in the tank and to adjust an internal pressure to a normal level when a negative pressure is produced in the tank. The ... | 08/12/2003 |
| 6568415 | Storing device for easily polymerizable and coagulating liquid substance and method for pressure control thereof A storing device is disclosed having a gas-sealing device and/or a heating device provided for a pipe connecting a storing tank for an easily polymerizable and/or coagulating liquid substance and a liquid sealing implement-protecting device. A method for ... | 05/27/2003 |
| 6561211 | Fuel tank vent control valve A vent valve for use with a fuel containing system including a fuel tank and a vapor recovery system. The vent valve includes a housing which communicates with the fuel tank and the vapor recovery system. The housing defines a path between the fuel tank a... | 05/13/2003 |
| 6546727 | Hydraulic system An hydraulic system that includes a master cylinder, a slave cylinder, a fluid conduit extending between the cylinders, and a pressure relief valve within the conduit between the cylinders. The pressure relief valve includes at least one port that is clos... | 04/15/2003 |
| 6543473 | Damper valve and a hydraulic power steering device using the same A casing accommodates therein a movable valve adapted to be moved away from a valve seat by a hydraulic oil flowing through an oil-hydraulic circuit from a hydraulic cylinder to an oil-hydraulic pump. In an event of oscillatory hydraulic pressures in the ... | 04/08/2003 |
| 6470909 | Hydraulic system A hydraulic system for a motor vehicle has at least one pressure restricting valve with a housing that has two or more connections. At least one conduit cross-section in the housing can be closed by means of a closing body that is movable axially against ... | 10/29/2002 |
| 6457613 | Container equipped with protective seal A container equipped with a rupturable retaining seal which, when broken, forms a spout from which the contents of the container may be poured. The rupturable seal is secured along its peripheral edge to the top opening of the container and contains a pin... | 10/01/2002 |
| 6408913 | Device for inflating and deflating a tire inner tube, inner tube and wheel formed by a tire and a rim inside which the inner tube is arranged A device for inflating and deflating a flexible container which is elastically expandable for introduction of pressurized fluid into an internal volume of the container is described. The device is housed inside a cavity isolable from a surrounding environ... | 06/25/2002 |
| 6405750 | Disk pack valve assembly for a hydraulic circuit A integrated assembly form a parallel arrangement of a relief valve, an orifice and a check valve. A body has a first flange with a perimeter surface that engages a wall of a bore in which the assembly fits. An number of apertures extend through the flang... | 06/18/2002 |
| 6401755 | Damping valve A damping valve comprising a one-piece damping-valve body with axial through-passages for each direction of flow, at least one side of the damping-valve body having arranged on it at least one valve disk that at least partially covers an outlet opening of... | 06/11/2002 |
| 6305413 | Mixing adaptor system A mixing adaptor enables a material to be transferred from a first delivery means to a second delivery means and enables another material to be transferred from the second delivery means to the first delivery means. The adaptor has (i) a hollow main body ... | 10/23/2001 |
| 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 |
| 6263907 | Valve device of a storage tank for transporting oils or chemical compounds A valve device for a storage tank for transporting oils or chemical compounds, includes an upper body having a V-shaped valve seat at an upper end thereof. At least one screw hole with a closing cock is provided in the upper body. A lower body connected t... | 07/24/2001 |
| 6234196 | Mixing adaptor and system A mixing adaptor enables a material to be transferred from a first delivery means to a second delivery means and enables another material to be transferred from the second delivery means to the first delivery means. The adaptor has (i) a hollow main body ... | 05/22/2001 |
| 6234190 | Mixing adaptor with rupturable membrane A mixing adaptor enables a material to be transferred from a first delivery means to a second delivery means and enables another material to be transferred from the second syringe to the first delivery means. The adaptor has (i) a hollow main body having ... | 05/22/2001 |
| 6231323 | High pressure reciprocating pump A high pressure reciprocating pump (10) for high fluid pressures between 30,000 and 60,000 psi and having a valve cartridge (57) positioned within a manifold block (15) of the pump (10). The valve cartridge (57) has a fixed body (58) with a plurality of e... | 05/15/2001 |
| 6182687 | Pressure-dependent valve for a vibration damper A pressure-dependent valve, for use with an adjustable vibration damper comprising a piston rod arranged in an axially movable fashion in a cylindrical tube filled with damping fluid, is controlled by a pressure transducer pressurized via a pressure conne... | 02/06/2001 |
