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| Number | Title | Issue Date |
| 7559336 | Pressure limiting valve A pressure limiting valve having a spool with raised spool lands. The spool is slidably received in a spool bore having inflow and outflow grooves that form control edges. The valve has two control edges, and a hydraulic resistance is connected in series with one of... | 07/14/2009 |
| 7416903 | Wavy interface mixer The present invention provides methods and apparatus for mixing samples in-line in a microfluidic system, comprising methods of and means for introducing a first fluid sample into a flow-tube at a first end at a first velocity via a first conduit; methods of and mea... | 08/26/2008 |
| 7416026 | Apparatus for changing flowbore fluid temperature A flowbore fluid temperature control system comprising a valve mechanism that adjusts the flow of a fluid through a flowbore. The flowbore fluid temperature control system also comprises an actuator that adjusts the valve mechanism. The flowbore fluid temperature co... | 08/26/2008 |
| 7354190 | Two-stage mixing system, apparatus, and method A two-stage mixing system, apparatus, and method produces a solution including a first substance and a second substance in a predetermined ratio by first mixing the first substance with a first liquid to produce a first solution and then mixing the first solution wi... | 04/08/2008 |
| 7350616 | Power steering pump having electronic bypass control A power steering pump comprises a housing that includes a bore, a fluid discharge port that supplies pumped fluid into the bore, and a fluid bypass port for recycling excess fluid to the pumping elements. The pump outlet is at one end of the bore. A flow control val... | 04/01/2008 |
| 7347050 | Fuel metering unit A fuel metering unit 10 for an aircraft. The unit 10 having an inlet leg 12 within which fuel flows, which leg 12 splits into controlling legs 18, 20 which rejoin downstream to form an outlet leg 30. Shut off valves 28, 3... | 03/25/2008 |
| 7347945 | Method and an installation for separating out multiphase effluents The invention relates to a method and to an installation for separating out an effluent made up of a multi-phase fluid mixture. According to the invention, said installation includes gravity separator means whose geometrical separation characteristics can be adjuste... | 03/25/2008 |
| 7341074 | Multi-stage pressure regulator A pressure regulator that has particular application for an anode input side of a fuel cell system to provide the desired large turn-down ratio. The pressure regulator includes at least two valves positioned in parallel where the first valve is smaller than the seco... | 03/11/2008 |
| 7328721 | Flow rate controller A flow rate controller for controlling the flow of a medium, includes an incoming channel, a measuring chamber, a running flow channel connecting the incoming channel and the measuring chamber, a control valve acting in the running flow channel, and an outflow chann... | 02/12/2008 |
| 7327045 | Fuel delivery system and method providing regulated electrical output In a mobile fuel delivery vehicle, providing bulk aircraft fuel from a pressurized fuel reservoir to an aircraft, a method of regulating electrical output of an electrical power source, includes the steps of: (a) receiving, in a fluid path, the bulk aircraft fuel fr... | 02/05/2008 |
| 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 |
| 7318912 | Microfluidic systems and methods for combining discrete fluid volumes Microfluidic devices capable of combining discrete fluid volumes generally include channels for supplying different fluids toward a sample chamber and means for establishing fluid communication between the fluids within the chamber. Discrete fluid plugs are defined ... | 01/15/2008 |
| 7314353 | Pump assembly for transporting a cooling fluid A pump assembly includes a cam member arranged to rotate about an axis, and a piston pump having a cylinder body with a biased piston drivingly displaceable within the cylinder body and engageable with the cam member such that rotation of the cam member corresponds ... | 01/01/2008 |
| 7311116 | Gas regulation system and process for operating the gas regulation system A gas regulation system includes a manifold, a plurality of control modules in fluid communication with the manifold, and a power source. Each control module includes an actuatable valve that is in fluid communication with an associated gas storage device and in ele... | 12/25/2007 |
| 7210393 | Progressive-starting unit for pneumatic systems A progressive-starting unit for pneumatic circuits comprises a line inlet and a line outlet interconnected with each other by a regulating valve that is piloted by a pneumatic piloting inlet. The piloting inlet is controlled by the outlet of a progressive-starting d... | 05/01/2007 |
| 7140233 | Immersion lithography proximity sensor having a nozzle shroud with flow curtain The present invention is directed to an immersion lithography proximity sensor having a nozzle shroud with a flow curtain. The immersion lithography proximity sensor includes a shroud that affixes to the nozzle. A plenum is located inside the shroud that holds a shr... | 11/28/2006 |
| 7131629 | Composite valve for gas supply system An automatic-and-manual operation composite valve includes a valve main body into which an air is supplied and from which the air is discharged, a piston provided within the valve main body to be vertically movable by means of the air supplied or discharged and a sn... | 11/07/2006 |
| 7124624 | High-resolution gas gauge proximity sensor An apparatus and method for precisely detecting very small distances between a measurement probe and a surface, and more particularly to a proximity sensor using a constant gas flow and sensing a mass flow rate within a pneumatic bridge to detect very small distance... | 10/24/2006 |
| 7090311 | Brake traction control valve A brake traction control valve is disclosed. The brake traction control valve includes a valve core, a shell, an armature, an exciting coil, a plunger, and a return spring. The valve core has an inlet to allow inside and outside of the valve core to communicate with... | 08/15/2006 |
| 7080654 | Method for transporting easily polymerizable liquid by pipeline A method for transporting an easily polymerizable liquid by a pipeline having branches, wherein among pipelines branched at a branch point, one pipeline which may not be used over a long period of time, is provided with a valve to close the pipeline, within 500 mm f... | 07/25/2006 |
| 7044149 | Pipe fitting A pipe fitting with a body adapted for connection at a first end thereof to a supply pipe and at a second end thereof to a distribution pipe so as to permit fluid communication between the supply pipe and the distribution pipe. The body is provided with first valve ... | 05/16/2006 |
| 7017390 | Proximity sensor nozzle shroud with flow curtain The present invention is directed to an apparatus for reducing the impact of cross winds on gas flow emitted from a nozzle. The apparatus includes a shroud that affixes to the nozzle. A plenum is located inside the shroud that holds a shroud gas, which is fed into t... | 03/28/2006 |
| 6996969 | Multi-mode shutdown system for a fuel metering unit A multi-mode shutdown system in combination with a fuel metering unit of an engine to prevent normal fuel delivery during engine malfunction such as the engine overspeeding. The multi-mode shutdown system includes a shutdown solenoid capable of closing a pressurizin... | 02/14/2006 |
| 6997524 | System and method for controlling a hydraulic system A method for preventing a valve orifice from switching to the small size when a high build gradient is required includes briefly bleeding off a small amount of fluid at the upstream side of the valve. This momentarily reduces the pressure difference when beginning t... | 02/14/2006 |
| 6978658 | Proximity sensor with self compensation for mechanism instability A retractable proximity sensor system with a self-compensating mechanism to reduce the impact of mechanical instability on the precision of a proximity sensor is disclosed. The retractable proximity sensor system includes a retractable proximity sensor and a proximi... | 12/27/2005 |
| 6973375 | System and method for flow monitoring and control One embodiment of the present invention can include a flow control device comprising an inlet, an outlet, a pressure loss element between the inlet and outlet, a pressure sensor located upstream from the constriction configured to measure a first pressure of a fluid... | 12/06/2005 |
| 6973373 | System for measuring change in fluid flow rate within a line A method and system for determining change in a fluid's flow rate within a line. The pressure variation in a second fluid, separated from the first by a pumping membrane, is measured in response to energy applied in a time-varying manner to the second fluid. From th... | 12/06/2005 |
| 6966365 | Outflow prevention device To provide an outflow prevention device which is capable of preventing refrigerant from flowing out into a vehicle compartment even when an evaporator has ruptured. The outflow prevention device comprises a shut valve arranged in a passage via which refrigera... | 11/22/2005 |
| 6945507 | Gas flow control A gas flow controller includes a control valve coupled for actuating a main valve. In one example embodiment, a gas flow controller includes a main valve and a servo valve operated by an actuator, said servo valve being used for controlling the opening of the main v... | 09/20/2005 |
| 6935593 | Gas distribution system in an airplane A gas distribution system in an airplane has improved reliability of operation with a first supply line (7) and a second supply line (9) for pressurized gas connected to a pressurized gas source (2) via a branching site (6) with a second ... | 08/30/2005 |
| 6935357 | Fluid supply failure protection valve A water supply failure protection valve is connected to hot and cold water supplies. The failure protection valve is responsive to the loss of cold water supply pressure to shut off all water flow. The failure protection valve is responsive to the loss of hot water ... | 08/30/2005 |
| 6926205 | Fluid supply failure protection valve A water supply failure protection valve is connected to hot and cold water supplies. The failure protection valve is responsive to the loss of cold water supply pressure to shut off all water flow. The failure protection valve is responsive to the loss of hot water ... | 08/09/2005 |
| 6901952 | Gas flow regulation system A gas flow regulation module for use in a pressure vessel including a wall with an opening having a minimum opening diameter. The wall defines an interior space in the pressure vessel. The module includes a head portion, a neck portion, and a body portion. The body ... | 06/07/2005 |
| 6802333 | Fluid flow controlling A method and system for controlling the rate of fluid flow. A flow restrictor having known pressure drop and flow rate characteristics provided in a passage through which the fluid, preferably a gas, flows. An upstream pressure sensor determines the pressure of flui... | 10/12/2004 |
| 6783329 | Regulating jet pump with two fluid seals, one opening at an intermediate inlet pressure and the other opening at a higher inlet pressure for increased flow through the pump The invention provides a jet pump comprising a housing containing a nozzle into which an injected fluid is introduced, the housing also possessing a suction orifice, the pump comprising, upstream from the outlet of the nozzle, an auxiliary chamber associated with tw... | 08/31/2004 |
| 6583525 | Viscosity regulating valve The subject invention is a valve for regulating the viscosity of fluid utilized by an integrated drive generator (IDG). The valve includes a housing defining a bore having a first inlet supplying "cold" hydraulic fluid at a first viscosity and a second in... | 06/24/2003 |
| 6560790 | Flush control A high flow valve assembly and a low flow valve assembly are in parallel flow relation between an inlet and an outlet of a flush controller. The valve assemblies are opened by solenoid operated pilot valves under the control of a microprocessor based flus... | 05/13/2003 |
| 6499152 | Flush controller A high flow valve assembly and a low flow valve assembly are in parallel flow relation between an inlet and an outlet of a flush controller housing. The valve assemblies are opened by solenoid operated pilot valves under the control of a microprocessor ba... | 12/31/2002 |
| 6324840 | Bulk fuel delivery system for operating a fluid driven power source at a constant speed A portable fueling control system is provided for delivering bulk fuel to a vehicle from a pressurized source. The portable system includes a fluid driven power source for operating auxiliary instrumentation of the system. An inlet receives the bulk fuel ... | 12/04/2001 |
| 6299657 | Process for carrying out chemical reactions using a microlaminar mixer In the reaction process, at least two educts A, B are divided by a system, assigned to each of them, of slit-like microchannels 1a, 1b into spatially separate fluid lamellae, which then emerge into a common mixing and reaction space 4. The fluid lamellae ... | 10/09/2001 |
