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8590569 Metering ball valve  
The valve is switchable between metering, full flow and shut off configurations. The preferred embodiments of the inventions include a metering-full flow, a metering-shut off and metering-shut...
8485226 Three-way valve integrated with radiator  
The present invention relates to a three-way valve that is integrally formed with an outlet of a radiator for use in a fuel cell vehicle that advantageously improves thermal management of a fuel...
8276662 Systems and methods to filter and collect downhole fluid  
The present disclosure is directed to the filtering and collection of downhole fluids. An example system to filter and sample downhole fluids includes a first sampling chamber that includes one or...
8205635 Flowmeter and flow-rate controller  
A flowmeter in which a flow rate can be measured over a wide flow-rate range while an increase in the cost of manufacture thereof is minimized, and a flow-rate controller equipped with such a...
8096316 Valve systems for use with a fluid injector system  
A valve system for use in a system including a first source of a first pressurized fluid and a second source of a second pressurized fluid includes a valve housing including a first inlet port...
7975721 Fluid valve systems  
An apparatus includes a first valve having an inlet capable of being in fluid communication with a first fluid source, an outlet capable of being in fluid communication with the inlet, and two...
7878217 Valve device for sanitary fitting and sanitary fitting  
A valve device for a sanitary fitting having at least two control elements which are movable relative to one another and on which at least two inlet channels and at least one control channel are...
7717061 Gas switching mechanism for plasma processing apparatus  
A processing apparatus is disclosed which is capable of switching supplies of a raw material gas and a reducing gas alternately, while continuously forming a plasma of the reducing gas. An...
7651323 Smart control valve for compressors  
Disclosed herein is a smart control valve for compressors that is capable of easily accomplishing compression and communication in a compression chamber of a cylinder, without performing the...
7523787 Reverse out valve for well treatment operations  
A reverse out valve (100) comprises an outer housing (120) and a mandrel (144) that form a bypass region (130) therebetween. The mandrel (144) includes a central flow path (164) with a valve seat...
7007639 Air injection engine  
An internal combustion engine of the present invention features separate compression and expansion cycles. The engine includes a separate compressor device which pressurizes air by a ratio greater...
6988511 Outlet valve structure for water dispenser  
A outlet valve structure of a water dispenser includes a body member, a first controller, a second controller and a control switch. The outlet valve has the function of controlling dispense and...
6868864 Water flow control valve  
Used in the automobile industry, and more specifically in the driver's cab heating system, the valve is installed between the link between the engine and the radiator and the cab's heating system....
6810664 Slotted spool valve  
A slotted spool valve for a speed control apparatus offering rapid response to prevent speed searching and cogging at low speed settings. Round port spool valve arrangements are replaced with a...
6712093 Valve  
A valve (10) has a valve housing (12), at least one inlet conduit (14) and at least one outlet conduit (16), a movable lifting rod (28), one end of which discharges into an actuator (68), and at...
6575195 Bypass valve  
A bypass valve for directing fluid flow, where the bypass valve includes a valve body with a notch in at least one end thereof and a spool seated within the valve body. The spool is rotatable...
6510999 Thermostat three-way control valve equipped with automatic air vent valve for air conditioning fan-coil unit  
A thermostat three-way control valve equipped with an automatic air vent valve for air conditioning fan-coil unit includes a thermostat three-way control valve located between a chilled water...
6347644 Bypass valve for water treatment system  
A water treatment system bypass valve assembly that includes a unique multi-functional auxiliary port. The auxiliary port may be fitted with a check valve that relieves vacuum drawn on the water...
6295828 Apparatus for switching a refrigerant channel of an air conditioner having cooling and warming functions  
A refrigerant channel switching apparatus in an air conditioner having cooling and warming functions is provided. The apparatus includes a main valve body, a direction shifting chamber formed...
6293298 Water softener valve  
A water softener valve for controlling water flow to and from a water softener is disclosed that includes a cylindrical shaft extending from said inner surface of a piston chamber that fits into a...
6290208 Valve seal, including for duplex head  
A duplex fluid filter assembly has first and second alternate duty filters. A valve assembly controls fluid flow between respective alternate flow paths. The valve assembly has a stationary valve...
6277293 Dual filter isolation block  
A dual filter isolation block for isolating a fluid stream between a fluid source and a user device and including a main body, a first fluid path provided in the main body between the source and...
6253837 By-pass values for heat exchanger  
A by-pass valve and a heat exchanger employing same is disclosed where the by-pass valve makes a short circuit from the heat exchanger inlet to the heat exchanger outlet to disable the heat...
6155296 Linear fluid flow valve  
A bypass configured butterfly type rotary valve particularly suitable for controlling engine coolant flow to a passenger compartment heater core outlet. A baffle is employed to increase linearity...
6152177 Method and apparatus for auto-zeroing a flow sensor  
In a gas chromatograph a valve assembly for providing gradual, uninterrupted re-direction of gas flow between a flow measurement position and a bypass position. The valve assembly maintains...
6058971 Quick-connect diverter valve  
A quick-connect diverter valve for use in connecting existing water faucets and water filtration units in and around a kitchen, or other areas where clean drinking water is desired. The device...
5996606 Four-port valve and three-way valve  
A four-port changeover valve in an emergency water storage tank facility for changing over the flow paths of the water main and to the tank by axially moving the valve rod. Three valve seats are...
5988218 Connection fitting for connecting a pressure expansion vessel for heated drinking water  
The invention relates to a connection fitting for connecting a pressure expansion vessel to a conduit system, in which a water flow flows, a diaphragm dividing said vessel into a cavity filled...
5967185 Rotary valve  
A rotary fluid-control valve for controlling fluid flow has a cylindrical valve chamber, a dove-tail shaped valve body mounted rotatably in the valve chamber and movable between an open position...
5944053 Solenoid valve for heating systems  
A solenoid valve for use in heating systems in motor vehicles is disclosed. The solenoid valve includes a housing having a core which is axially movable in the housing and is connected by a shaft...
5911212 Priority valve for an intercooled engine  
The invention is in a priority valve that includes a housing arranged for in-line mounting between a conventional turbocharging unit of an internal combustion engine, an intercooler and an engine...
5730186 Integrated solenoid valve/rotary joint  
A method and apparatus for heating a liquid, such as cooking oil for a fryer. A heat transfer fluid, such as an oil, is heated, such as by a gas-fired burner, at a location remote from the liquid...
5693217 Fluid circuit with a primary stream filter and a bypass stream centrifuge  
A hydraulic fluid circuit having a primary stream filter and a centrifuge disposed on a bypass, in which a device for setting a minimum response pressure for operation of the centrifuge and for...
5564458 Timing valve for the discontinuous metering of a volume flow  
In a constant timing valve for the discontinuous metering of a volume flow, in particular the flow of cooling water flowing through a heat exchanger of a motor vehicle heater, the volume flow...
5551480 Valve driving system  
When the valve is closed, for example at normally-open type valve, the operating voltage applied to the electromagnet is initially set to the minimum operating voltage (6 V, for example), then...
5452744 Valve for water system  
A valve for use with a water filtration system has a housing and a piston contained therein. The piston has a bypass position, a shut-off position, an inservice position, and a back-flush function...
5244013 Water conditioner rotary valve drive system  
A water conditioner rotary valve for use in a water conditioning system includes a valve body constructed of an upper section, a lower section and a middle section, to facilitate ease in assembly...
5203081 Method of assembling a water conditioner rotary value  
A water conditioner rotary valve for use in a water conditioning system includes a valve body constructed of an upper section, a lower section and a middle section, to facilitate ease in assembly...
5174337 Water conditioner rotary valve  
A water conditioner rotary valve for use in a water conditioning system includes a valve body constructed of an upper section, a lower section and a middle section, to facilitate ease in assembly...
5162080 Rotary flow control valve  
A rotary flow control valve for controlling the cycles of a multicycle liquid treatment apparatus such as a water softener. A pair of rotatable, slotted, circular disks connected to rotate with...
5152321 Bypass valve  
A bypass valve for directing a supply flow either through a treatment tank to the distribution system, or for bypassing the treatment tank and directing the supply flow through the valve directly...
5139050 Multi-functional valve  
A multi-functional valve includes a body and a circular piston. The piston has at least one circular O-ring surrounding the piston body. There is also a side mounted O-ring with a central axis...
5133385 Changeover valve for water filter  
A changeover valve is disclosed; this valve has a valve case which has a water intake to be connected to a water supply device, a water outlet, a drain port, and two connecting ports to be...
5083589 Low cost return diverter valve  
A diverter-return body for a diverter valve directing water through a filter unit and characterized by low cost manufacture in its body of round configuration that minimizes machining and...
5057214 Filtration and backwash control system for water filters associated with spigot faucets  
A filtration and backwash control system for use with replaceable cartridge filters including a spool valve for controlling the flow of filtered water and backwash discharge from an existing...
4972877 Bypass valve  
A bypass/diverter valve for controlling the flow of fluid from a source to a fluid treatment device such as a water softener. The valve includes a valve housing defining a circular chamber having...
4958695 Variable assist power steering system  
A control valve includes valve elements relatively displaceable in response to a predetermined variable (e.g., a steering torque) to define therebetween two parallel fluid flow paths connected...
4936297 Device for the enrichment of respiratory air with oxygen  
A device for the enrichment of respiratory air with oxygen, includes a supply gas to be enriched which is supplied to at least one concentrator and from there to a product gas line in an...
4925464 Fluid flow switching valve assembly and system  
A valve assembly and overall system provides selective fluid flow switching and communication between a plurality of flow conduits. The valve assembly includes two valve members which have...
4895184 Fluid servo system for fuel injection and other applications  
A fuel injection system for a spark-ignition internal combustion engine in which combustion air is fed through an air flow meter to produce an input force whose strength is proportional to the...
Matches 1 - 50 out of 167 1 2 3 4 >