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| Number | Title | Issue Date |
| 7743791 | Air control module unit for portable pneumatic tool The present invention generally relates to an air control module unit for a portable pneumatic tool, more particularly, to an air control module unit that actuates a valve stem inside an air inlet block of the air inlet module by a correspondent air bleed valve in t... | 06/29/2010 |
| 7318448 | Swimming pool cleaning apparatus and parts therefor A swimming pool cleaning device includes a fluid distribution system for controlling its operation. More particularly, the distribution system includes a housing having an inlet for receiving a supply of pressurized fluid, a pair of outlet openings and a valve chamb... | 01/15/2008 |
| 7310965 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 12/25/2007 |
| 7294278 | Method for oxygenating wastewater A method and apparatus creates gas-enriched fluid that is used to treat wastewater. In one embodiment, the wastewater is withdrawn from a supply of wastewater to be treated, and the wastewater is delivered in an atomized manner to a vessel pressurized with gas to fo... | 11/13/2007 |
| 7273072 | Valve body for a valve assembly A valve body for a valve assembly includes a main passageway in which a primary valve is received which has a weir constructed to define a valve seat and to interact with a valve element in the form of a diaphragm. Integrated in the valve body is a secondary valve h... | 09/25/2007 |
| 7204961 | Liquid feed apparatus and automatic analyzing apparatus Provided is a liquid feed apparatus for feeding liquid by operating a diaphragm at a high frequency, in which an inlet valve and an outlet valve are integrally incorporated with a liquid feed chamber, the positions of the valve are shifted into peripheral parts of t... | 04/17/2007 |
| 7198072 | Purgeable manifold system A purgeable manifold system for the movement of low vapor pressure chemicals that may be embodied in a variety of forms. In one embodiment, a container for storing the low vapor pressure chemical has a plurality of ports; a first manifold detachably connects a first... | 04/03/2007 |
| 7171985 | Distributor module for valve clusters and a valve cluster In the case of a distributor module for valve clusters, which possess a principal valve supplied with pressure medium by way of a supply duct and at least one pilot control valve, serving for controlling same and supplied by way of at least one pilot control supply ... | 02/06/2007 |
| 7172732 | High pressure parallel reactor with individually isolatable vessels An apparatus and method for synthesis and screening of materials are disclosed. According to one aspect of the present invention, a parallel batch reactor for effecting chemical reactions includes a pressure chamber, and a plurality of reaction wells. Each of the re... | 02/06/2007 |
| 7159412 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 01/09/2007 |
| 7144616 | Microfabricated elastomeric valve and pump systems A method of fabricating an elastomeric structure, comprising: forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending along a bottom surface of the fir... | 12/05/2006 |
| 7141218 | High pressure parallel reactor with individually isolatable vessels An apparatus and method for synthesis and screening of materials are disclosed. According to one aspect of the present invention, a parallel batch reactor for effecting chemical reactions includes a pressure chamber, an inlet port, and two or more reaction vessels w... | 11/28/2006 |
| 7122159 | High pressure parallel reactor with individually sealable vessels An apparatus and method for synthesis and screening of materials are disclosed. According to one aspect of the present invention, a parallel batch reactor for effecting chemical reactions includes a pressure chamber, an inlet port, two or more reaction vessels withi... | 10/17/2006 |
| 7114531 | System and method for purging high purity interfaces A system for purging high purity interfaces connecting a high purity chemical container to process lines comprises a first purging manifold, connected at one end to a first adapter manifold extending from the high purity chemical container, and connected at the othe... | 10/03/2006 |
| 7073346 | Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 07/11/2006 |
| 7069949 | Four-way switching valve The object of the present invention is to provide a simple-construction four-way switching valve which is simple in construction and excellent in sealability, performs switching of the operation mode without producing unusual noise, and is reduced in the number of m... | 07/04/2006 |
| 7036527 | Composite valve Disclosed is a composite valve comprising a valve body that is provided integrally with a solenoid valve portion and a differential pressure valve portion. The valve body is formed with an upper valve chest, a lower valve chest, a refrigerant introduction chamber th... | 05/02/2006 |
| 7028713 | Switching valve The object of the present invention is to provide a switching valve capable of increasing the opening stroke of a valve operated by a differential pressure while saving space, thereby reducing pressure loss. A first valve is disposed between an inlet port and a firs... | 04/18/2006 |
| 7010906 | Gas turbine engine haveing a disconnect panel for routing pipes and harnesses between a first and a second zone A gas turbine engine (10) includes a first fire zone (Zone 3) in the region of a core of the engine and a second fire zone (Zone 1) in the region of a fan case of the engine, the first and second fire zones being separated by fire walls. The fir... | 03/14/2006 |
| 7008535 | Apparatus for oxygenating wastewater A method and apparatus creates gas-enriched fluid that is used to treat wastewater. In one embodiment, the wastewater is withdrawn from a supply of wastewater to be treated, and the wastewater is delivered in an atomized manner to a vessel pressurized with gas to fo... | 03/07/2006 |
| 6966341 | Compressed air control apparatus for compressed air systems of motor vehicles A compressed air control apparatus for compressed air systems of motor vehicles includes a pressure controller (10) for controlling the pressure, an air dryer (6) for drying the compressed air flowing through the compressed air control apparatus and a ... | 11/22/2005 |
| 6953047 | Cabinet for chemical delivery with solvent purging The present invention is an apparatus for storing and delivering a low vapor pressure process chemical to a process tool for semiconductor fabrication, comprising: a) a bulk container for storing the process chemical; b) a process container for delivering the proces... | 10/11/2005 |
| 6939032 | Cover slip mixing apparatus A cover slip mixing apparatus having a support and a flexible cover slip positioned over and forming a chamber between the support and the cover slip. A device is positioned with respect to the support and cover slip for applying a force on the cover slip and flexin... | 09/06/2005 |
| 6929237 | Valve actuation system and methods for pipeline valves The invention is therefore directed to a rotary valve actuating system coupled to a pipeline for a pressurized fluid, the actuating system being coupled to the rotary valve to selectively cause operation of the valve. The valve actuating system comprises at least tw... | 08/16/2005 |
| 6904938 | Locking block There is disclosed a stop block for controlling a hydraulic consumer in which a main piston having an advanced opening can be lifted off a valve seat in a return function by means of a push piston. A pressure chamber confined by the main piston on the one hand and b... | 06/14/2005 |
| 6883545 | Three-way switching valve The object of the present invention is to provide a three-way switching valve having a valve mechanism compact in size, and capable of changing a flow of a high-pressure fluid, without internal leakage of the fluid. A compact pilot-operated three-way switching valve... | 04/26/2005 |
| 6868866 | Compressed air distributing apparatus for compressed air systems of motor vehicles A compressed air distributing apparatus for compressed air systems of motor vehicles includes a multi circuit protection valve (9) for supplying a plurality of circuits (I, II, III, IV, V) with compressed air. The multi circuit protection valve (9) inc... | 03/22/2005 |
| 6862916 | Gas chromatograph sample valve The present invention is a sample valve for use in conjunction with a gas chromatograph. The sample valve design provides for both the inertness and low permeability performance of a diaphragm, and an elastomeric material to apply adequate sealing pressure to the di... | 03/08/2005 |
| 6823897 | Four-way switching valve A four-way switching valve free from leakage of a refrigerant is disclosed. The valve includes two three-way switching valves arranged side by side, each having a pressure-regulating chamber, a piston, and a plug coaxially arranged. One of the pressure-regulating ch... | 11/30/2004 |
| 6817385 | Method and apparatus for filling a liquid container and converting liquid phase fluid into a gaseous phase for dispensing to users A method an apparatus for establishing in a system for dispensing fluid in a gaseous phase a predetermined quantify of the fluid in its liquid phase, and for allowing such fluid in its liquid phase to vaporize into its gaseous phase to replace the gaseous phase flui... | 11/16/2004 |
| 6742544 | Injection valve array A novel gas injection valve for injecting discrete charges of gas into a mobile phase or carrier stream is provided. Injection valves of the invention comprise a plurality of microvalves capable of receiving gas at different pressures and emitting discrete charges o... | 06/01/2004 |
| 6698454 | Valve integrally associated with microfluidic liquid transport assembly The present invention discloses a valve integrally associated with a microfluidic transport assembly that is useful for regulating the flow of a liquid sample through an analytical instrument such as, for example, a biosensor. The valve integrally associa... | 03/02/2004 |
| 6453725 | Gas chromatograph sample and column-switching valve A multiport, diaphragm sealed valve suitable for use as both a sampling and column switching valve. The valve is constructed to internally block fluid communication between one or more pairs of ports in a valve operating mode. Such blocking may be used to... | 09/24/2002 |
| 6374860 | Integrated valve design for gas chromatograph A gas chromatograph with multiple valves is disclosed. An embodiment of the multi-valve gas chromatograph includes multiple valves, multiple thermal conductivity detectors (TCD's), and a manifold. This allows separation and measurement of a gas sample in ... | 04/23/2002 |
| 6334464 | Dump valve for a high pressure fluid system A dump valve for a high pressure fluid line includes a base, a fitting secured to the base and adapted to be interposed along the high pressure fluid line. The fitting defined an internal manifold having a dump port in communication with the manifold. A h... | 01/01/2002 |
| 6196248 | Fuel flow control system An exemplary embodiment of the invention is directed to a fuel flow control system for use with a fuel distribution system having a plurality of zones each including a servovalve. The fuel flow control system includes a fluidic multiplexer having a plural... | 03/06/2001 |
| 6158208 | Multiplexed fluid control system with pressure transducer feedback A multiplexed hydraulic control system includes a pressure transducer fluidically connected to the multiplexer for sequential or periodic connection to a plurality of channels. The multiplexed hydraulic control system provides hydraulic control flows to a... | 12/12/2000 |
| 6139291 | Scroll machine with discharge valve A compressor includes a normally open discharge valve assembly for controlling compressed refrigerant flow from the discharge chamber through the compression members. This controlling of flow results in an increased performance for the compressor by reduc... | 10/31/2000 |
| 6073655 | High pressure/vacuum isolation apparatus and method A valve system is provided for operatively coupling a high pressure source to a processing chamber that selectively cycles between high pressure and vacuum. The valve system includes a branch passageway that selectively communicates a source of intermedia... | 06/13/2000 |
| 6041808 | Compressed air control device for a source of compressed air on motor vehicles A compressed air control device for a source of compressed air on motor vehicles, forming a unit of an electro-pneumatic unloader, an integrated electro-pneumatic multi-circuit control valve and an air-drier, comprising an inlet and an outlet provided in ... | 03/28/2000 |
