Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 8251345 | Suck-back valve A suck-back valve having an open/close valve with a suck-back function is provided. The suck-back valve includes a suck-back chamber formed in a valve internal channel of the open/close valve, a piston shaft portion and an open/close pressuring member to apply press... | 08/28/2012 |
| 8047502 | Combined check and control valve To overcome problems concerning the sticking of the check plate in a combined check and control valve, a stop is provided on the valve rod or a guide element in the vicinity of the valve rod, whose distance to the limiting element is smaller than the maximum stroke ... | 11/01/2011 |
| 7367358 | Medical fluid delivery system and method relating to the same A medical fluid delivery system for the use in the delivery of medical fluids. The medical fluid delivery system may include a pumping system, a disposable medical fluid line set and a valve operating system. The disposable tubing line set may include valves adapted... | 05/06/2008 |
| 7357152 | Releasable non-return valve The invention relates to a releasable non-return valve, in which a connection between a working chamber and a connector chamber may be closed by a non-return piston and opened by the opening movement of a release piston which may be pressurized with a release pressu... | 04/15/2008 |
| 7340939 | Emissions sampling valve The invention provides a device for use in sampling the exhaust emissions from a turbine engine. The device has a valve array in a manifold housing coupling multiple turbine exhaust lines to an emissions analyzer, such as used in CEMS. Each valve can be actuated by ... | 03/11/2008 |
| 7320456 | Valve device A valve element for opening and closing a flow path can be reliably set to an opening position and a closing position. The valve element for opening and closing a communication opening portion communicating with an inflow hole and an outflow hole is provided in a va... | 01/22/2008 |
| 7228781 | Hydraulic control in a hydraulic system, especially for the operation of scrap cutters The invention relates to hydraulic control in a hydraulic system for the operation of a machine tool such as a press for processing material of a certain type, especially for the operation of the scrap cutters. Said control allows for impact attenuation and combined... | 06/12/2007 |
| 7163194 | Actuator for rotor valve An actuator (16) for a rotor valve (10). The actuator includes a rack (86) for driving a pinion gear (87) of the valve. The rack is moved between first and second positions by the action of a first piston (88). Movement of the firs... | 01/16/2007 |
| 7155896 | Combustor drain valve A system for draining fuel from the combustion chamber of a gas turbine engine in the event of a false start includes associated passageways and a straight through flow pilot air actuated poppet valve. The valve is normally open and actuated by the pilot air to clos... | 01/02/2007 |
| 7156267 | Valve unit for filling machines The present invention relates to a valve unit for container filling machines, particularly for bottle fillers. More particularly, the present invention relates to a valve unit (1), particularly for machines for filling containers (8), comprising a holl... | 01/02/2007 |
| 7032876 | Fluid valve A valve for controlling fluid flow. The valve include a support element providing a flow path, at least a portion of the flow path extending along an axis of flow through the valve. A flexible element is compressible against the support element to interrupt the flow... | 04/25/2006 |
| 7004446 | Bistable dual-magnet valve unit A dual-magnet valve unit having a first master magnet ring assembly with an outer casing slidably contained within an outer housing that forms a chamber with the casing of the master magnet ring assembly and a second, slave magnet disk assembly with an outer tube an... | 02/28/2006 |
| 6971301 | Asymmetrically accelerated vibrator for feeding materials An asymmetrical vibrator is provided, which is actuated by compressed air. The vibrator operates in a case, which has two bores disposed parallel on opposite sides of the casing. One of the bores is smaller than the second bore and the piston operating in the small ... | 12/06/2005 |
| 6964304 | Technique for maintaining pressure integrity in a submersible system A technique for maintaining pressure integrity within a submersible system. The system utilizes a pressure housing with an internal component, such as a valve. The internal component is actuated by an external actuator via an actuator stem. A seal region is position... | 11/15/2005 |
| 6932315 | Manual opening apparatus for a normally-closed valve An apparatus for manually opening a normally-closed valve includes a value and a hand-operated valve opening jig. The valve includes a working rod for operating a valve element which is moved to close and open a conduit; a cylindrical holder fixed to the working rod... | 08/23/2005 |
| 6932318 | Flow control device A flow control device comprises an inlet port through which fluid is supplied, an outlet port through which the fluid is delivered, a valve body which is arranged in a passage between the inlet port and the outlet port so as to open and close the passage, the flow c... | 08/23/2005 |
| 6923423 | Small bore gate valve A gate valve comprises a valve body, a stem bore which extends through the valve body, a stem which is disposed in the stem bore and which includes a first stem portion that is sealed to the stem bore, a second, smaller diameter stem portion that is sealed to the st... | 08/02/2005 |
| 6913240 | Electrohydraulic control unit An electrohydraulic control unit for operating an actuator of a hydraulically controllable device is disclosed. The electrohydraulic control unit comprises a housing including a chamber for hydraulic fluid. The housing is coupled to the actuator such that a path for... | 07/05/2005 |
| 6851477 | Curved flapper with angle variant seat for a subsurface safety valve A subsurface safety valve for controlling fluid flow in a well bore. In one embodiment, the subsurface safety valve includes a tubular member having a longitudinal bore extending therethrough, a curved flapper removably connected to the tubular member. The curved fl... | 02/08/2005 |
| 6820645 | Unlockable non-return valve for very high system pressures An unlockable non-return valve reduces the tendency of the poppet piston to jam by providing a first insert that has a guide diameter for the poppet piston over just a short section of its end side facing the piston collar, and wherein a supporting ring is arranged ... | 11/23/2004 |
| 6808158 | Hydraulic outlet-valve actuation and method of making and using same A hydraulic valve control arrangement is provided with a control line of a control cylinder, the control line being connected to a first oil volume, with a first control piston having a first control face and operatively connected to the first oil volume, and with a... | 10/26/2004 |
| 6802295 | Air intake shutoff device with connecting linkage An air intake shutoff device is disclosed for an engine. The device includes at least two air shutoff valve assemblies. Each of these assemblies has a gate for controlling air flow into the engine. A linkage couples together the gates of each of the air shutoff valv... | 10/12/2004 |
| 6792844 | Hydraulic system for aircraft landing gear A hydraulic system for raising and lowering aircraft landing gear (11, 12) includes an actuator (18) which is extendible and retractable to operate the landing gear, the actuator (18) including a movable member (19) in a casing (20... | 09/21/2004 |
| 6736092 | Internal-combustion engine with an electronically controlled hydraulic system for actuation of the valves and means for compensating changes in the operating conditions of the hydraulic In an internal-combustion engine equipped with an electronically controlled hydraulic system for variable actuation of the inlet and/or exhaust valves of the engine, the hydraulic system for actuation of the valves includes, for each engine valve, a solenoid valve f... | 05/18/2004 |
| 6685164 | Control valve and diaphragm for use in the control valve The control valve according to the present invention has a high durability, so that the valve is not easily damaged even in case that the valve is provided in a corrosion gas current path. The valve has a construction such that a diaphragm (4) is containe... | 02/03/2004 |
| 6666271 | Curved flapper and seat for a subsurface saftey valve The invention is generally directed to a curved flapper and seat for use in a subsurface safety valve. The flapper is biased to a normally closed position to prevent fluid flow through the wellbore. The curved flapper has a sealing surface for engaging a ... | 12/23/2003 |
| 6659757 | Valve for injection molding A valve for controlling the flow of a high pressure fluid is provided. The valve provides a reliable way of controlling the flow of high pressure fluids in applications requiring multiple cycles where equipment may be exposed to environmentally harsh cond... | 12/09/2003 |
| 6651687 | Pressure relief system with clutch activated valve A pressure relief system for detecting and correcting an overpressure situation in a pressurized fluid. The system includes a pressure responsive member such as a buckling pin configured to mechanically collapse when a predetermined force is applied to th... | 11/25/2003 |
| 6637723 | Fluid valve A valve for controlling fluid flow. The valve include a support element providing a flow path, at least a portion of the flow path extending along an axis of flow through the valve. A flexible element is compressible against the support element to interru... | 10/28/2003 |
| 6536740 | Disconnected piston for a valve actuator A valve and valve actuator utilizing a disconnected piston design that separates under conditions of excessive actuator internal pressure to prevent overloading and damaging the threaded connection between the valve stem and actuator piston is disclosed. ... | 03/25/2003 |
| 6517342 | Device for igniting fuel A device for igniting fuel, comprising at least one burner, the device comprising ignition means comprising an ignition element, the ignition means further comprising a movable element which is connected to a fluid line, such that a fluid contained in the... | 02/11/2003 |
| 6422127 | Hydraulic actuation arrangement A hydraulic actuation arrangement including a double-action working cylinder whose working chambers are in communication via a mutually unseatable check valve with one side of a reversible pressure medium source, respectively, whereby each working chamber... | 07/23/2002 |
| 6341758 | Gas control module switch mechanism A novel gas control module switch mechanism includes a diaphragm means, a valve body, a piston means and a fastening means. The diaphragm means has a plurality of diaphragms and a seal plate sandwiched between a first and a second diaphragm. The first dia... | 01/29/2002 |
| 6289926 | Flapper valve assembly with seat having load bearing shoulder A flapper valve assembly (120) for controlling fluid flow therethrough is disclosed. The flapper valve assembly (120) comprises a tubular valve housing having a valve chamber. A valve seat (124) is mounted within the housing. The valve seat (124) has a va... | 09/18/2001 |
| 6263910 | Valve with secondary load bearing surface A valve (120) for controlling fluid flow therethrough in downhole applications is disclosed. The valve (120) comprises a valve housing having a valve closure mechanism (122) and a valve seat (124) disposed therein. The valve closure mechanism (122) has se... | 07/24/2001 |
| 6223824 | Downhole apparatus A downhole ball-valve (20) comprises a body (22) defining a bore (32), a valve ball (34) defining a through passage (36) such that the ball (34) may be positioned to permit flow through the body bore (32) or to close the bore, and a sealing assembly (44) ... | 05/01/2001 |
| 6213106 | Fluid-operated valve assembly A fluid operated valve assembly is disclosed including a housing defining a cylinder, a piston arranged for reciprocal motion in the cylinder, a fluid inlet for admitting fluid into the working chamber of the cylinder to cause the piston to be displaced t... | 04/10/2001 |
| 6196261 | Flapper valve assembly with seat having load bearing shoulder A flapper valve assembly (120) for controlling fluid flow therethrough is disclosed. The flapper valve assembly (120) comprises a tubular valve housing having a valve chamber. A valve seat (124) is mounted within the housing. The valve seat (124) has a va... | 03/06/2001 |
| 6149125 | Positively controlled ball valve A positively controlled ball valve for flowing fluids, in particular water, for instance for use in snow making machines. The valve includes a valve housing (1) having a flow passageway (3) for the water (7), a valve seat (9) arranged in the flow passagew... | 11/21/2000 |
| 6138712 | Controller A casing 61 is formed with a guide bore 69 having an open upper end for guiding an operating rod 21. An opening-closing indicator 77 is mounted on an upper end of the operating rod 21 and positioned within the guide bore 69 when a fluid channel is closed ... | 10/31/2000 |
