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| Number | Title | Issue Date |
| 7814923 | Control valve A configurable control valve for use with air brake systems is provided. This control valve includes: a first or top body portion, a second or bottom body portion, and a connector for attaching the first body portion to the second body portion. The first body portio... | 10/19/2010 |
| 7793678 | Method and apparatus for converter valve A converter valve allows product dispenser operator to change from a first fluid source to a second fluid source without fluid crossover. The converter valve includes a first port in fluid communication with a dispense point, a second port in fluid communication wit... | 09/14/2010 |
| 7735508 | Rotary slide valve A rotary slide valve, in particular for speed-dependent power steering systems in motor vehicles, has a torsion bar, a rotary slide, and a control bushing. The control bushing is pressed onto a pinion and the torsion bar is inserted into a torsion bar bore of the pi... | 06/15/2010 |
| 7326188 | Anesthesia manifold and induction valve The present invention is directed to an improved anesthesia manifold and an improved induction valve mechanism. A plurality of induction valve elements may be joined or “ganged” together in order to define a manifold. In the preferred embodiment of the induction... | 02/05/2008 |
| 7320338 | Microvalve package assembly A microvalve assembly that can help protect a microvalve or an assembly of microvalves from the environment. Such a microvalve assembly may be mechanically assembled, without the use of adhesives and/or other materials that might out-gas and/or otherwise reduce the ... | 01/22/2008 |
| 7293582 | Method and apparatus for precluding backflow in a mixing valve subjected to unbalanced inlet pressure An apparatus and method are provided for precluding backflow of fluid in a mixing valve, through use of a manifold of the mixing valve including a septum wall in an intermediate divided segment of an outlet conduit of the manifold. ... | 11/13/2007 |
| 7216661 | Method of forming a wear resistant component A method of forming a wear resistant component includes providing a base material, depositing a strengthening layer on the base material, and vapor depositing an amorphous diamond layer on the strengthening layer. ... | 05/15/2007 |
| 7160272 | Y-site medical valve A medical valve includes a valve body having a central fluid passageway defined therein. A movable piston adapted in size and shape to be located within said central fluid passageway of said valve body. A sealing interface is defined between said movable piston and ... | 01/09/2007 |
| 7159605 | Chatter resistant shuttle valve A chatter resistant shuttle valve is provided to direct fluid flow from at least two sources of pressurized fluid to a downstream apparatus. The shuttle valve includes a valve body with a shuttle valve member movably mounted inside. A dampening chamber is provided w... | 01/09/2007 |
| 7059351 | Surface-tension-guided liquid transportation device A liquid transportation device includes a working board, a working liquid, a liquid channel and a cover board, wherein the liquid channel is formed on a top surface of the working board, the covering board is fully covered the liquid channel, the liquid channel comp... | 06/13/2006 |
| 7051857 | Coupling device and improved method of controlling torque transmission A method of controlling a pressure control valve assembly (69) to control a control pressure (43,71) in a system (11) including a source (47,49) of pressurized fluid. The control valve assembly is operable to vary the control pressure in ... | 05/30/2006 |
| 7044400 | Solenoid end cap assembly with flat surface A solenoid end cap assembly having a flat mating surface. The flat mating surface is a single planar mating surface and is designed to mate with a substantially flat mating surface of a valve control body. The solenoid, housed within the solenoid end cap, does not p... | 05/16/2006 |
| 7007709 | Microfluidic device and manufacture thereof The present invention relates to microfluidic devices and to their method of manufacture. The microfluidic devices are original by their specific structure (of sandwich type) and by the materials from which they are made (mainly glasses, glass ceramics, ceramics), a... | 03/07/2006 |
| 7000891 | Screw-in valve The invention relates to a screw-in valve comprising a screw-in component, a sleeve with at least two connection openings to which a pressure load can be alternately applied, and a valve piston held for axial displacement in the sleeve for opening and closing a flow... | 02/21/2006 |
| 6948514 | Solenoid operated spool valve with baffled dampening reservoir port and method of making same A solenoid operated spool valve has a dampening reservoir formed at one end of the spool and which is ported for immersion in a fluid sump. The reservoir port is oriented vertically above the spool and a cap with an offset port is received over the reservoir port to... | 09/27/2005 |
| 6929099 | Rotary feed-through A rotary feed-through, which contains a hollow shaft, which is supported in a first housing part so that it can rotate, with a first sealing surface and a sealing bushing, which is arranged rotationally fixed within a second housing part and which is coaxial with th... | 08/16/2005 |
| 6929088 | Power steering system A power steering system includes a rotary slide valve which has a housing, an input shaft and an output shaft which can be rotated relative to each other to a limited extent. A centering piston is provided which is non-rotatably and axially movably connected with th... | 08/16/2005 |
| 6929019 | Method for the production of a valve A method for the manufacture of a valve having at least one valve opening surrounded by at least one valve seat and an elongated valve member able to be brought into different positions by pivoting. In order to adjust the switching stroke of the valve member the val... | 08/16/2005 |
| 6926034 | Hydraulic spool lock and method of use A hydraulic spool lock with a hydraulic spool housing, first and second hydraulic spools mounted within the hydraulic spool housing for independent selective movement with respect to the hydraulic spool housing, and a lock plunger movable mounted to the hydraulic sp... | 08/09/2005 |
| 6918571 | Solenoid operated valve assembly and method of making same A soleniod operated valve has an operating rod attached to the armature with one end of the rod contacting the end of a valve member for effecting movement thereof upon coil energization. A lower bearing is disposed in a lower flux collector adjacent one end of the ... | 07/19/2005 |
| 6902704 | Injection pump assembly for a combinatorial reactor and related method An injection pump assembly 10 in a chemical delivery system for simultaneously delivering reagents into a combinatorial reactor system having multiple injectors. The assembly 10 has a plurality of injectors 12, each injector 12 being in f... | 06/07/2005 |
| 6871576 | Hydraulic isolation valve Method and apparatus for isolating hydraulic devices in a stacked hydraulic circuit of modular design employing an isolator valve module which enables partial and/or complete isolation of components in a hydraulic system to be isolated for inspection, testing, maint... | 03/29/2005 |
| 6769445 | Valve drive device A gear meshing with a pinion controls the angle of rotation of a valve element which is brought into sliding contact with a valve seat, thereby controlling the opening and closing of a communicating hole of outflow pipe. During welding the valve seat plate and a hou... | 08/03/2004 |
| 6672566 | Multi-use sterile access/GMP diaphragm valve housing A multi-use sterile access/GMP diaphragm valve housing having a valve housing block having a main flow axis. The housing having a main flow valve mounting surface formed parallel to the main flow axis. The housing having a first port and an opposing secon... | 01/06/2004 |
| 6575187 | Three-way plastic valve A 3-way valve for controlling the flow between first and second ports and a common port. The 3-way valve comprising a valve body having an integral flow portion and a valve stem having first and second valve members. The valve stem is pressfit assembled i... | 06/10/2003 |
| 6390117 | Directional seat valve A directional seat valve has a valve housing having a pressure connector for supplying pressure medium to the valve housing, a tank connector for returning pressure medium to a pressure medium tank, and a working connector for supplying pressure medium to... | 05/21/2002 |
| 6386221 | Journal mounted solenoid valve A solenoid valve is mounted in the bore of a ferromagnetic journal. Mounting the solenoid valve in the journal conserves space on the firewall of a vehicle where the solenoid is typically located. Journal mounting also minimizes the length of the air line... | 05/14/2002 |
| 6386220 | Solenoid operated pressure control valve A solenoid operated pressure control valve of the type using a spool valve member for controlling flow from a source inlet to a control outlet port and to an exhaust port. The solenoid has a reduced area portion of the flux collector in magnetic loop form... | 05/14/2002 |
| 6321767 | High flow solenoid control valve An engine oil solenoid actuated control valve includes a molded one-piece member that defines a check valve-receiving region and a coil bobbin region of the solenoid. The check valve-receiving region includes an integral check valve-receiving receptacle a... | 11/27/2001 |
| 6267133 | Method for mounting a steering valve with a centring unit A steering valve (1) for power-steering gears contains two valve elements (4, 8), which are rotatable relative to each other. A corresponding centering unit (16) contains two centering elements (17, 18), which are rotation-fixed relative to the valve elem... | 07/31/2001 |
| 6209563 | Solenoid control valve An engine oil solenoid control valve includes a molded one-piece valve nozzle and coil bobbin member that defines a valve nozzle and a solenoid coil bobbin and also defines an integral check valve receiving receptacle at an exhaust port and first and seco... | 04/03/2001 |
| 5964239 | Housing assembly for micromachined fluid handling structure A housing for a (silicon) micromachined body (for instance an injector valve system, a detector or a stream selector for a gas chromatograph instrument) is field assemblable and disassemblable and mechanically self-aligning so that the micromachined body ... | 10/12/1999 |
| 5778918 | Pilot valve with improved cage A two-position pilot-operated SPM valve includes an improved cage for controlling fluid flow to a ram of a subsea blowout preventer. SPM valve 10 includes a piston 48 axially movable with respect to a valve body 12, a spool 38 for moving within the valve ... | 07/14/1998 |
| 5694964 | Method and article for inserting valve spool into secondary bore A method and valve assembly for inserting a spool into a secondary bore of a valve body. A slave tool is inserted into a primary bore axially adjacent a secondary bore of the valve body. The slave tool includes a slave bore axially aligned with the second... | 12/09/1997 |
| 5353828 | Valve construction and method of making the same A valve construction and method of assembling the same are provided, the valve construction having a deflector unit for directing fluid flow from the inlet of the housing means of the valve construction away from an operating part of a bimetallic lever me... | 10/11/1994 |
| 5172713 | Modular mixing valve An electrically operated plural inlet-single outlet plastic mixing valve having common dual valve operator assemblies separately supplying valve flow to an outlet manifold to which the operator assemblies are attached by non-metallic weldment. In one embo... | 12/22/1992 |
| 4658851 | Reversing valve construction and method of making the same A reversing valve construction having a housing provided with a chamber carrying a movable valve member therein that controls ports of a valve seat of the housing through the relative position of a cavity of the valve member relative to the ports, the por... | 04/21/1987 |
| 4479505 | Heating valve A heating valve is provided which comprises a valve body with a plurality of connecting branches, a valve seat disposed inside the valve body, a bonnet seated in a connecting branch opposite to the valve seat, a valve stem passing through the center of th... | 10/30/1984 |
| 4458710 | Method of making a valve construction having multiple pistons A method of making a valve construction comprising the steps of forming the housing to have a plurality of valve seat sections disposed in spaced substantially parallel relation, forming a piston unit to comprise a plate and a plurality of pistons dispose... | 07/10/1984 |
