"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 7686039 | Cartridge valve assembly A cartridge valve assembly includes a body having a pilot port, a first port, a second port, a third port fluidly connected to a central bore, and a spool positioned within the central bore and being movable between at least a first position and a second position. T... | 03/30/2010 |
| 7458396 | Method and device for flow switchover A method and a device for flow switchover are described, the time to switch over the fluid being shortened. This is accomplished by a three-way valve, which may be provided with additional connections to the pump and the slider is designed accordingly. With the help... | 12/02/2008 |
| 7389795 | Valve assembly A valve assembly comprising a valve body, a first movable pressure responsive element, and a second pressure responsive movable element, wherein the valve assembly further comprises a resilient biasing element and a movable third pressure responsive element, the res... | 06/24/2008 |
| 7380571 | Directional control valve A valve accommodating hole (11), and each of a supply port (20), discharge ports (21 and 22), and output ports (23 and 24) connected to the valve accommodating hole are formed in a valve casing (15), and a valve shaft... | 06/03/2008 |
| 7367371 | Inflation circuit, in particular for a tire mounted on a wheel, and corresponding wheel An automatic inflation and deflation circuit for a tube (3) is produced with a single compressed fluid supply conduit (5). The inflation results from subjecting a non-return valve (VA) in series on the conduit to excess pressure. Deflation is provided ... | 05/06/2008 |
| 7367785 | Reduced icing valves and gas-driven motor and reciprocating pump incorporating same A valve for a gas-driven motor and a valve assembly and reciprocating pump incorporating the valve are provided. The valve includes a shiftable valve for alternatively supplying a motive gas through first and second supply ports to opposed first and second power pis... | 05/06/2008 |
| 7337807 | Hydraulic control valve with regeneration function The present invention A hydraulic control valve with a regeneration function, including a main body formed of a supply fluid passage to which pressurized fluid is supplied, at least one port, a tank fluid passage for discharging the pressurized fluid to an outside s... | 03/04/2008 |
| 7331893 | Methods and systems for improving the operation of transmissions for motor vehicles Methods and systems for improving the operation of a transmission for an automotive vehicle are provided for modifiying the original hydraulic circuits to increase the capacity or holding ability of the low and reverse clutches when the transmission is shifted into ... | 02/19/2008 |
| 7325885 | Regulator valve for a torque-transmitting mechanism and method of engaging a torque-transmitting mechanism A regulator valve for controlling the pressure of fluid engaging a torque-transmitting mechanism in a transmission includes a valve body forming a valve bore of a plurality of passages. A spool valve slides within the valve body. A check valve selectively opens and ... | 02/05/2008 |
| 7322376 | Piezoelectric valve A piezoelectric valve has a flexural transducer accommodated in a valve housing and having a free ending cantilever operational section able to be deflected by electrical control. The operational section extends over two controlled valve openings lying on the same s... | 01/29/2008 |
| 7320337 | Fluid distribution and control valve and use thereof to supply enriched air to the occupants of an aircraft An apparatus and a method for fluid distribution and control. A valve body defines at least two pairs of chambers which are each connectable to an external fluid circuit. A mobile structure, which moves according to a controlling unit, forms an internal penetrating ... | 01/22/2008 |
| 7306009 | Hydraulic control valve A tandem hydraulic valve comprising first and second axially aligned valve spools, a valve guide slidably receiving said valve spools to control, in use, the connection between respective ports of the valve guide, said first and second spools being formed as separat... | 12/11/2007 |
| 7225719 | Speed governor and distributing valve for hydraulic turbines A distributing valve for a speed governor of a turbine is provided, the distributing valve having a structure to reliably vent air therefrom. The distributing valve is disposed such that the direction of movement of a plunger is horizontal, with air vent valves bein... | 06/05/2007 |
| 7210473 | Paintball marker and kit of parts therefor A paintball marker is provided including a body, an inlet control device, a firing system, a first regulator and a second regulator. The body has a paintball inlet and a barrel for receiving a paintball from the paintball inlet. The inlet control device is movable b... | 05/01/2007 |
| 7210501 | Directly operated pneumatic valve having a differential assist return A fluid control valve includes a valve body having both fluid inlet and discharge ports. A flow passage axially extending within the valve body communicates with the inlet and discharge ports. A valve member within the flow passage is movable by an actuator force in... | 05/01/2007 |
| 7210502 | Microvalve device suitable for controlling a variable displacement compressor A device is disclosed for controlling a variable displacement compressor. The device comprises a microvalve operated control valve. A microvalve device for controlling fluid flow and a micro spool valve for use as a microvalve are also disclosed. ... | 05/01/2007 |
| 7207353 | Pilot controlled multiway valve A multiway valve has valve housing and at least one pilot valve arranged in it. The principal valve housing possesses an integral principal housing part wherein at least the control section of a valve spool is arranged. The pilot valve possesses a head piece which i... | 04/24/2007 |
| 7204266 | Pilot-operated pressure shut-off valve A pilot-operated pressure shut-off valve having a main control piston which, when an upper system limit pressure in the hydraulic system is reached, connects an inlet, via which pressure medium can be fed to a hydraulic system, to an outlet by taking up a first swit... | 04/17/2007 |
| 7180248 | Inductively coupled ballast circuit A ballast circuit is disclosed for inductively providing power to a load. The ballast circuit includes an oscillator, a driver, a switching circuit, a resonant tank circuit and a current sensing circuit. The current sensing circuit provides a current feedback signal... | 02/20/2007 |
| 7124598 | Pressure testing and refrigerant recharging conduit assembly for automobiles A combination pressure measurement/charging system may include a conduit coupled to a refrigerant can. The conduit may be coupled to a low-pressure side of a refrigerant system. The system may include a valve to control a flow of fluid through the conduit. Thus, a f... | 10/24/2006 |
| 7125229 | Reciprocating air distribution system A reciprocating air distribution system includes a valve housing, having a cylinder therein. A valve element is slidably mounted within the cylinder. Also provided is an inlet to the cylinder, an exhaust from the cylinder and air distribution passages which are cont... | 10/24/2006 |
| 7124778 | Valve having junction type housing A first housing member and a second housing member are divided by a dividing surface including a center axis of a valve hole. Connecting holes are formed in joint surfaces of the respective housing members at locations of the joint surfaces opposed to each other. Co... | 10/24/2006 |
| 7118088 | Fluid control valve To provide a fluid control valve which is capable of preventing or suppressing degradation of the accuracy of flow rate control dependent on the lift amount of a valve element from a valve seat. An expansion valve is configured such that a valve portion and a valve ... | 10/10/2006 |
| 7107781 | Pressure testing and refrigerant recharging hose assembly for automobiles A combination pressure measurement/refrigerant charging apparatus may include a shutoff valve that includes a piercing pin and a pressure gauge. The piercing pin may be used to pierce a refrigerant can. The pressure gauge may be used as a handle for operating the sh... | 09/19/2006 |
| 7104273 | Torque converter clutch regulator valve assembly and method of installation A replacement torque converter clutch regulator valve assembly for use within an automatic transmission including two cooperating valves, namely a regulator apply valve and an isolator valve, disposed in fluid communication with a line pressure circuit and a torque ... | 09/12/2006 |
| 7086276 | Temperature correction method and subsystem for automotive evaporative leak detection systems A method and sensor or sensor subsystem permit improved evaporative leak detection in an automotive fuel system. The sensor or sensor subsystem computes temperature-compensated pressure values, thereby eliminating or reducing false positive or other adverse results ... | 08/08/2006 |
| 7080663 | Valve assembly A valve assembly for load pressure-independent control of consumers is disclosed, which includes a main valve having a directional element and a metering throttle part. The valve assembly includes a shut-off valve for leakage-free shutting off of a work line leading... | 07/25/2006 |
| 7066927 | Vented seal having redundant sealing components A seal having a body and several bands extending away from the body. The bands extend around an axial portion of the body. In some embodiments, the bands project from and are formed integral with the body. For example, the bands can be rings. Two bands can be locate... | 06/27/2006 |
| 7063517 | Valve apparatus and pneumatically driven diaphragm pump incorporating same A valve apparatus and pneumatically driven diaphragm pump incorporating same having a valve body having a longitudinal axis and an actuator having an axis with a first end and a second end. The first and second ends have first and second diaphragms, respectively, di... | 06/20/2006 |
| 7055550 | Fluid delivery system and mounting panel therefor A novel fluid delivery system includes a mounting panel, where the mounting panel includes channels that define the flow of fluid between any flow-control components mounted on the mounting panel. The mounting panel comprises a top plate and a bottom plate, and the ... | 06/06/2006 |
| 7047993 | Pilot switching valve apparatus and a method of switching pilot switching valve In a valve chest of the pilot switching valve, a positive pressure chamber and a negative pressure chamber are formed on opposite sides of a valve spindle making a reciprocating motion in the valve chest due to repulsion by a return spring, and by connecting a posit... | 05/23/2006 |
| 7044442 | Valve block for a control device, particularly for a hydrostatic machine The invention relates to a valve block (1) for a control device comprising a valve (9) whose valve piston (14) is subjected to the action of a control pressure when in its open position and to the action of a return spring (15) when in it... | 05/16/2006 |
| 7040301 | Fuel system with integrated pressure management A fuel system supplying fuel to an internal combustion engine of a vehicle. The fuel system includes an integrated pressure management system managing pressure and detecting leaks in the fuel system. The integrated pressure management system also performs a leak dia... | 05/09/2006 |
| 7029410 | System for preventing belt slip of belt-type continuously variable transmission CVT control unit of a belt CVT checks whether a reverse rotation of pulleys is generated. When the reverse rotation is generated, a PLpri torque capacity is calculated from a primary pressure Ppri, and this PLpri torque capacity is used as a torque limit value of a ... | 04/18/2006 |
| 7025084 | Integrated pressure management system for a fuel system An integrated pressure management system manages pressure and detects leaks in a fuel system. The integrated pressure management system also performs a leak diagnostic for the head space in a fuel tank, a canister that collects volatile fuel vapors from the head spa... | 04/11/2006 |
| 6971628 | Direct-acting electric operated valve A direct-acting electric operated valve has a stem which reciprocates by an electric motor without using air pressure. In this direct-acting electric operated valve, as the stem 2 vertically reciprocates, a first passage 11 and a second passage ... | 12/06/2005 |
| 6969042 | Blowout preventer and ram actuator A blowout preventer with a main body; a base releasably connected to the main body, the base having a base space therein, the base having a ram shaft opening; a primary piston movably disposed within the base space; a ram shaft to which the primary piston is connect... | 11/29/2005 |
| 6966339 | Spool valve arrangement A spool valve arrangement with a cylinder is fitted with a clearance fit in a cylinder bore in a housing of the spool valve arrangement. The housing has first pressure medium ports and the cylinder has second pressure medium ports. A socket is inserted through each ... | 11/22/2005 |
| 6959913 | Actuator An actuator having a set of slidable pistons including sliding regions with the sliding regions including at least one wear member supported by a resilient member and a second wear member laterally spaced from the first wear member with a lubrication reservoir locat... | 11/01/2005 |
| 6931919 | Diagnostic apparatus and method for an evaporative control system including an integrated pressure management apparatus A diagnostic appartus and method for a fuel system that supplies fuel to an internal combustion engine. The fuel system includes a fuel tank that has a headspace and a filler occluded by a removable cap, a charcoal canister in fluid communication with the headspace,... | 08/23/2005 |