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| Number | Title | Issue Date |
| 6990992 | Damper device A damper device includes a first baffle capable of opening or closing a first opening portion by turning about its axis and a second baffle capable of opening or closing a second opening portion by turning about its axis. A common drive source for driving the first ... | 01/31/2006 |
| 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 |
| 6776240 | Downhole valve A valve for downhole well service, having a rotary indexer carrying an elastically-loaded valve element on a valve seat surface in a flow passage, the valve element adapted to obstruct one or more flow passages in the valve seat surface when aligned therewith. The v... | 08/17/2004 |
| 5845677 | Dual throttle valve The present invention relates to a dual throttle valve of a car which includes an intake pipe divided into a primary intake path for low speed and a secondary intake path for middle or high speed, a primary throttle valve, a secondary throttle valve, a pi... | 12/08/1998 |
| 5730507 | Cable extension for brake lock A brake lock system is used in a vehicle having a brake line which feeds brake fluid to at least one brake member. The system comprises a brake line fittable housing having at least one fluid inlet and at least one fluid outlet. A flow control which contr... | 03/24/1998 |
| 5462086 | Selector relief valve assembly A dual pressure relief valve selector is formed by a Y-shaped tubular body having an inlet port at its stem position connected with a vessel or a line to be monitored. Each leg of the Y-shaped housing is connected in fluid communicating relation with a sa... | 10/31/1995 |
| 5421358 | Fluid valve mechanism and valving method A piston fluid valve mechanism and method, wherein annular outer and core inner coaxial valve members are adapted to move to and fro slidably relative to one another and to bar upstream-to-downstream fluid flow when mutually juxtaposed into seated positio... | 06/06/1995 |
| 5344221 | Anti-theft method and apparatus for locking the brakes of a vehicle An anti-theft device is installed in a vehicle brake line which carries braking fluid. The device defines a valve seat and a valve body adapted to close against said valve seat, the valve body having a passageway therethrough and being rotatable against s... | 09/06/1994 |
| 5309934 | Balanced piston fluid valve Balanced piston fluid valve, wherein annular outer and core inner coaxial valve members are adapted to move to and fro slidably relative to one another and to bar upstream-to-downstream fluid flow when mutually juxtaposed into seated position but adapted ... | 05/10/1994 |
| 5307838 | Rotary valve assembly A rotary valve assembly is disclosed in which a rotary valve member is located within a casing having one or more fluid inlets and a plurality of fluid outlets. The rotary valve member has a fluid conduit which extends in a generally radial direction and ... | 05/03/1994 |
| 5291911 | Conical variable area throttling device The subject device has a pair of conical segment members extending downstream from a central chamber and provided with means to relatively rotate them to proportion the flow of the non-predominant (volumetric-wise) phase of two-phase fluid therethrough. R... | 03/08/1994 |
| 5007456 | Closing arrangement for ducts having large cross-sectional areas, particularly flue gas ducts A closing arrangement for ducts having large cross-sectional areas, particularly flue gas ducts for power plants. The arrangement includes at least two flaps which are mounted on at least one flap shaft. Lever arrangements composed of crank arms and tight... | 04/16/1991 |
| 4889317 | Proportional flow control valve A valve for the proportioning of fluid flow between orifices (14,15) consists of a first cylinder (16) provided with a tapering circumferential groove (19) in its periphery, and a pair of cylinders (17,18) contacting the first cylinder respectively in the... | 12/26/1989 |
| 4778083 | Mixing and dispensing apparatus An apparatus for mixing and dispensing fluid components includes a mixing chamber for mixing reactive components prior to dispensing the components. The components are provided through separate valves to ducts in fluid communication with inlets to the mix... | 10/18/1988 |
| 4749004 | Airflow control valve having single inlet and multiple outlets A valve apparatus interconnects a single inlet duct with a plurality of outlet ducts. The apparatus has a manifold body that provides a passageway between the inlet and the outlets. Operatively positioned in each outlet is a butterfly valve. A single driv... | 06/07/1988 |
| 4685156 | Adjustable water temperature safety control unit An adjustment water temperature safety control unit (40) includes a pair of control valves (42, 44) interconnected by meshed control gears (100, 106) for opposite inversely proportional actuation responsive to a single control knob (78). The desired maxim... | 08/11/1987 |
| 4664356 | Control valve A valve includes a valve housing having a valve bore with a first valve member movable therein to control fluid communication between a pump, a reservoir and a hydraulic function. The first valve member includes annular grooves which receive pressure cont... | 05/12/1987 |
| 4633903 | Distributing control valve with hydraulic control A 4/2 type distributing control valve characterized by compactness, ruggedness and high sampling frequency, the valve comprising two index plates (6, 7), each having teeth about its perimeter, provided with axial switching bores (8, 9, 10, 11). The two sw... | 01/06/1987 |
| 4543984 | Truck trailer brake airline lock Highway trailer for hauling cargo has air actuated brakes. Valve mounted on the trailer connected in the air line maintains brake-on air pressure in the line while trailer is parked. Valve has locking handle to inhibit trailer theft.... | 10/01/1985 |
| 4437461 | Valve respirator device A valve respirator device for use both on human and on animal patients. The device comprises a housing having an inport, an outport and an exhaust port. The outport is connected to the patient's respiratory system, the inport is connected to a source of a... | 03/20/1984 |
| 4388766 | Humidity-controlled diverter valve A fluid flow control device including an inlet and a pair of outlets and a diverter valve selectively operable to place the inlet in fluid communication with either the first or second outlet in response to a humidity sensitive control mechanism. The flui... | 06/21/1983 |
| 4312381 | Air flow damping system A control device for a triple-plenum air conditioning apparatus having a by-pass air duct, a hot air duct and a cold air duct. A first shaft mounted through the by-pass and hot air ducts carries a first by-pass air damper blade and a hot air damper blade ... | 01/26/1982 |
| 4196752 | Group valve for two separate liquid supply lines A group valve for selectively connecting two liquid supply lines separately to a container. The valve comprises a housing with three chambers, one of which is separately connected to the others communicating with a respective liquid line. In each chamber ... | 04/08/1980 |
