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| Number | Title | Issue Date |
| 7434780 | Pilot-type two-port valve A pilot-type two-port valve is disclosed having a water hammer preventing mechanism, operative to prevent a water hammer during valve-closing operation, which includes a valve member operative to open or close a valve and a piston driven by pilot fluid for operating... | 10/14/2008 |
| 7401760 | Vacuum regulating valve A vacuum regulating valve has a poppet type valve element supported so as to be brought into uniformly close contact with a valve seat disposed in a passage connecting two main ports. The valve element is connected to a valve stem by a connecting mechanism that allo... | 07/22/2008 |
| 7363937 | Replaceable sleeve insert for a choke assembly A replaceable sleeve insert for a choke assembly is disclosed, wherein the replaceable sleeve insert has a tubular member coaxially and sealingly retained within an upper body section of the choke assembly. The tubular member is also sealed against the bonnet. The t... | 04/29/2008 |
| 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 |
| 7322373 | High accuracy low leakage valve for high pressure applications A high pressure valve assembly (10) comprising a valve sleeve (14) and a valve body (16) slidably mounted in the valve sleeve (14) is disclosed, the valve body (16) and valve sleeve (14) each having first ends (18, 56... | 01/29/2008 |
| 7302961 | Surge relief valve A surge relief valve comprising a main valve body having a dome port and an inlet port. The inlet port is in fluid communication with a first fluid. The invention further includes a dome reservoir connected to the main valve body via the dome port and arranged to ho... | 12/04/2007 |
| 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 |
| 7192003 | Aseptic sampling valve Aseptic sampling valve having a valve body with a generally cylindrical side wall and a relatively thin, generally planar end wall, an inlet opening in the end wall, a valve seat surrounding the inlet opening, a port opening through the side wall and extending towar... | 03/20/2007 |
| 7182278 | Spray valve Accordingly, the invention provides a spray valve comprising: (a) an upper valve body including a hydraulic chamber for receiving an incompressible hydraulic fluid through a piston port and a piston slidable within said hydraulic chamber; (b) a lower valve body incl... | 02/27/2007 |
| 7159839 | Control device Booster means 11 for transmitting a force acting on a piston 10 to a valve stem 9 on amplification comprises pivotal members 25 each supported by casings 7, 8 so as to hold an outer end and an inner end thereof in contact with an o... | 01/09/2007 |
| 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 |
| 7096878 | Pyrotechnically actuated microvalve The microvalve comprises a mini-piston moving due to the thrust of gases given off by firing of a pyrotechnic charge and comprising an aperture designed to enable communication to be established between ends of microchannels of a microfluidic component. When the end... | 08/29/2006 |
| 7059579 | Latching valve for a torque-transmitting mechanism in a transmission A torque-transmitting mechanism control valve disposed between a hydrostatic source of pressure and a torque-transmitting mechanism is effective to direct fluid pressure to engage the torque-transmitting mechanism when a control pressure is present, effective to ret... | 06/13/2006 |
| 7059283 | System and method of retaining hydraulic fluid in a hydraulic valve actuation system Methods and systems for retaining hydraulic fluid in a hydraulic valve actuation system adapted to be installed on an internal combustion engine are disclosed. The system may include a hydraulic fluid supply connected by one or more passages to a fluid accumulator a... | 06/13/2006 |
| 7059545 | Automatic air-assisted manifold mounted gun A coating material dispensing device includes a first component providing a connection to a source of coating material to be dispensed and a filter for filtering coating material to be dispensed. The first component includes a housing for housing the filter and a cl... | 06/13/2006 |
| 7033256 | Abrasive fluid jet machining apparatus A valve for controlling a flow of abrasive particles suspended in a pressurized carrier fluid has at least two apertured valve seats (74, 75) in face to face contact. One of the valve seats (74, 75) may be slid between a first position in which the ape... | 04/25/2006 |
| 7025323 | Low power integrated pumping and valving arrays for microfluidic systems Low power integrated pumping and valving arrays which provide a revolutionary approach for performing pumping and valving approach for performing pumping and valving operations in microfabricated fluidic systems for applications such as medical diagnostic microchips... | 04/11/2006 |
| 7025140 | Large particulate removal system A choke for removing large diameter particulate matter from an oil or natural gas well includes a housing having a chamber with an integral solids receptacle. The chamber is in communication with a flow stream outlet and a flow stream inlet. The flow stream inlet is... | 04/11/2006 |
| 7025083 | Quick closing shut-off valve A quick closing shut-off valve includes an inlet, an outlet and a passage there between. A closing element blocks the passage when in the closed position. The closing element is interconnected to a piston via a pull rod. The piston is positioned within a working cha... | 04/11/2006 |
| 6997439 | Liquid filling valve The present invention provides a filling valve which affords an excellent sterilization capability and a high maintenance capability. The valve includes a tubular nozzle 4, an operating rod 6 which is fitted in the nozzle 4 so as to be elevatabl... | 02/14/2006 |
| 6991211 | Pneumatically actuated valve A pneumatically actuated fluid control valve includes a piston and a piston actuator including a permanent magnet. First and second piston actuator positions for magnetically disposing the piston in valve open and valve closed positions are provided. A pneumatic act... | 01/31/2006 |
| 6986497 | Thruster gas control mechanism A thruster gas control mechanism for controlling a flow of thrust gas through a gas nozzle, the mechanism having a plunger movable into and out of the gas nozzle, the plunger being connected to two movable baffles. The two baffles form two channels with two side wal... | 01/17/2006 |
| 6983926 | Valve arrangement for hydraulic consumer A check valve arrangement for a hydraulic consumer which permits connecting the hydraulic consumer selectively to a medium pressure line or a high pressure line. The valve arrangement comprises a medium pressure switching valve 10, a high pressure switching v... | 01/10/2006 |
| 6968855 | Air operated fluid control valve This invention relates to an improved air operated fluid control valve which tends to inhibit or impede the travel of a fluid to the air controlled side of the control valve. The air operated fluid control valve includes a control valve having a valve body provided ... | 11/29/2005 |
| 6926249 | Precision modulating globe valve A precision modulating globe valve for controlling the flow of a fluid from zero to a maximum flow rate. The valve plug of the globe valve includes at least one flow modulating channel recessed from the outer surface of the valve plug. The outer surface of the valve... | 08/09/2005 |
| 6899129 | Shutoff valve and related methods A shutoff valve includes a positive position indicator for indicating the position of a piston in the valve. The valve position indicator is operably connected to a piston within the valve so that movement of the piston causes a corresponding movement of the valve p... | 05/31/2005 |
| 6896236 | Controlled leakage hydraulic damper A hydraulic damper cylinder 270 is provided for an electromagnetic actuated internal combustion engine cylinder valve 20. The damper includes a piston 68 slidably mounted within the damper cylinder 270. The piston 68 bifurcates the... | 05/24/2005 |
| 6871618 | Valve actuating device, and method for controlling same A device and control method for actuating valves of a motor vehicle internal combustion engine including at least a controlled hydraulic actuator actuating the associated valve that is provided in the form of a cylinder. A mobile piston connected to the valve delimi... | 03/29/2005 |
| 6755625 | Inlet throttle valve An inlet throttle valve for supplying liquid to a high-pressure pump has a fully open start position and an operating range where flow through the valve is determined by a pressure balance of a valving member independent of the pressure of oil supplied to the inlet ... | 06/29/2004 |
| 6752376 | Fluid controller A flow controller (1), comprising a valve body (4) having flow paths forming an inlet and an outlet of fluid, a diaphragm (6) held fixedly between the valve body and a bonnet (5), and an operating mechanism (7) moving the diaphragm... | 06/22/2004 |
| 6732519 | Pressure holding valve and vehicle braking device using the same A pressure-responsive type pressure holding valve is proposed which serves to hold the hydraulic pressure in a circuit connected to a spool valve. A piston valve biased by a spring is mounted in a housing formed with a valve chamber, a small-diameter bore and a larg... | 05/11/2004 |
| 6719263 | Multi-piston valve actuator A pressurized-fluid-operated actuator has multiple piston surfaces for providing increased output force. The actuator includes a stationary cylinder that contains a movable cylinder having multiple inner chambers separated by stationary inner pistons. The inner cham... | 04/13/2004 |
| 6715999 | Variable-capacity scroll-type compressor In a compressor at least one bypass valve is arranged in a low-pressure zone inside a casing of the compressor. The bypass valve defines a chamber connected by a first duct to at least one compression pocket situated in the peripheral zone of the compression stage a... | 04/06/2004 |
| 6694727 | Exhaust processor An exhaust processor includes a soot filter and a filter regenerator. The filter regenerator is configured to burn off particulate matter collected in the soot filter to regenerate the soot filter.... | 02/24/2004 |
| 6684897 | Valve actuator and method A subsea actuator and method is disclosed that includes all moving components mounted in a compact, concentric configuration. The subsea actuator is highly reliable and will operate at depth even with zero valve body cavity pressure. A preferably cup-shap... | 02/03/2004 |
| 6631880 | Preventative stop valve system and method A preventative stop valve system for a wheeled trailer carrying hydraulic equipment is disclosed comprising a stop valve fitted for insertion in-line into the hydraulic line servicing the trailer equipment; the stop valve comprising a reciprocating piston... | 10/14/2003 |
| 6550743 | Hydraulic system for actuation of a measurement-while-drilling mud valve The hydraulic system for actuation of the mud valve of a measurement-while-drilling tool is characterized by a hydraulic actuator having a piston operatively connected to the mud valve of a measurement-while-drilling tool, which hydraulic actuator incorpo... | 04/22/2003 |
| 6461119 | Lift valve for a rotary screw compressor The present invention relates to a variable capacity helical screw compressor for compressing a gaseous medium, usually air. The compressor includes at least one lift valve (1) which connects with a first compression chamber in the compressor. The lift va... | 10/08/2002 |
| 6338466 | Water well recharge throttle valve A water well recharge throttle valve (1) is configured as a hydraulic actuated flow control device (5) that permits calibrated throttling of water used in Artificial Storage and Recovery (ASR), Salt Water Barrier, Dedicated Recharge and Injection Wells to... | 01/15/2002 |
| 6305375 | Control valve actuated by low-pressure and low-flow-rate control fluid A control valve actuated by a low-pressure/low-flow-rate control fluid. The valve housing has a control-fluid channel, a second-fluid channel, and a piston which is movable between open positions and a closed limit position. The valve has a piston head se... | 10/23/2001 |
