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Class 137/625.35 - With internal passage


Subclass of Class 137 - Fluid handling
Definition: Devices wherein one flow path is through the longitudinal
No. of patents: 23
Last issue date: 05/22/2007


NumberTitleIssue Date
7219695Hydrogen valve with pressure equalization
A shut-off valve that has particular application for opening and closing a compressed hydrogen storage tank. In one embodiment, the valve includes two valve sealing members where one side of one valve sealing member is on the high pressure side of the valve and an o...
05/22/2007
7017608Balanced globe valve
An essentially fully balanced plug valve is presented in which the flow control contour is interior to the moving member. The sealing edge of the moving member is at the exterior surface relative to the interior contour. This sealing edge is formed by use of matchin...
03/28/2006
6968816Oil flow control valve
In an oil flow control valve (OCV) according to the present invention, a first volume varying chamber is adapted to communicate with a second volume varying chamber through a second plunger breathing path, and the second volume varying chamber is adapted to communic...
11/29/2005
6935290Avoid drawing air into VCT chamber by exhausting oil into an oil ring
A VCT phaser for an internal combustion engine with at least one camshaft comprising a housing, a rotor, a spool valve and a ring-shaped reservoir. The housing having at least one chamber and the rotor having at least one vane dividing the chambers into advance and ...
08/30/2005
6155654Method for controlling electromagnetic proportional pressure control valve
In vibrating a spool of a spool-valve type electromagnetic proportional pressure control valve by applying a dither current so that no static friction acts on the spool, the dither effect tends to weaken in a region where the current is small and in a reg...
12/05/2000
5381998Cylinder gas valve
The invention is to a safety valve for gas cylinders which includes a valve housing 11, a movable valve stem 11a within the valve housing for opening and closing the valve, a restrictor 15 in the valve stem through which gas is dispensed from the gas cyli...
01/17/1995
5379936Flow control valve assembly
A fluid condition controlled mixing valve assembly includes a valve body having a warm fluid inlet, a relatively chilled fluid inlet, a fluid mixing chamber, and a fluid outlet in communication with the mixing chamber. A thermally responsive control membe...
01/10/1995
5156181Removable seats for a dual poppet valve
A balanced dual poppet valve for a fluid control device having a housing removable seats. Each valve seat has a cylindrical body with a flange thereon which engages a flexible member made of laminated graphite and retained in the housing to form a seal be...
10/20/1992
5022436Balanced dual poppet valve
In a fluid flow control device having a housing with an entrance port connecting a source of fluid under pressure to a bore and an outlet port connecting the bore to a fluid system, a balanced dual poppet valve for controlling the flow of fluid between th...
06/11/1991
4966193Timing control for a dual poppet valve
In a valve having first and second poppet members which control the flow of fluid from an entrance port to an outlet port. The valve has a cylindrical body with a center bore through which fluid from the second poppet member flows and is thereafter combin...
10/30/1990
4756330Flow divider valve
In a flow divider valve for pressure feed to a hydraulic circuit for auxiliary power steering and to a hydraulic circuit for a power take-off the interior of a hollow regulator piston receives pressure feed for distribution to the hydraulic circuits. For ...
07/12/1988
4726453Self-adjusting single- or twin-tube shock absorber
A self-adjusting single- or twin-tube shock absorber having a cylinder closed at both ends and filled with at least one damping medium, a piston rod sealingly inserted into the cylinder, and a piston carried on the cylinder side end of the piston rod for ...
02/23/1988
4475568Pressure reducing and regulating valve
A pressure reducing and regulating valve having a body with a body cavity and a seal container movable in the cavity. The container includes primary and vent seals. At least one flow plate is positioned in the body adjacent the container and includes prim...
10/09/1984
4458718Spool valve and seal having zero leakage
A spool valve and seal having zero leakage includes a spool valve member having a hollow interior translatable within a bore in a valve body with inlet pressure connected through ports to the hollow interior of the spool valve member. A series of radial o...
07/10/1984
4444216Pressure reducing and regulating valve
A pressure reducing and regulating valve having a container with a plurality of openings for moving between first and second flow plates having a plurality of inlet ports and a plurality of outlet ports for providing multiple flow paths through the valve ...
04/24/1984
4429716Control valve
A balanced valve in which a hollow cylindrical valve element is slideably supported solely by a pair of O-rings adjacent opposite ends of the valve element. The O-rings loosely engage longitudinally grooved sections which are directly adjacent annular val...
02/07/1984
4391103Fluidic cryogenic refrigerator
The cryogenic refrigerator includes a movable displacer within an enclosure having first and second chambers of variable volume. A refrigerant fluid is circulated in a fluid path between said chambers by movement of the displacer. A spool valve controls i...
07/05/1983
4389850Hybrid cryogenic refrigerator
The cryogenic refrigerator includes a movable displacer within an enclosure having first and second chambers of variable volume. A refrigerant fluid is circulated in a fluid path between said chambers by movement of the displacer. A spool valve controls i...
06/28/1983
4388809Cryogenic refrigerator
The cryogenic refrigerator includes a movable displacer within an enclosure having first and second chambers of variable volume. A refrigerant fluid is circulated in a fluid path between said chambers by movement of the displacer. A spool valve controls i...
06/21/1983
4098294Flow control valve
A flow control valve having means within the valve body for forming simultaneously variable inlet and outlet orifices which are separated by an expansion chamber....
07/04/1978
4079886Double ported expansion valve
A double ported valve has structural features including an integral valve body construction which provides more consistent valve performance, longer valve life, and improved operating characteristics. The integral valve body eliminates the need for extern...
03/21/1978
4040675Anti-theft vehicle brake-supervising device
A vehicle anti-theft device which maintains the braking function of the braking fluid by preventing reverse flow thereof from the wheel cylinder back to the master cylinder until, following an authorized procedure, an interconnecting fluid passage is move...
08/09/1977
3970109Shutoff and control slide
A shutoff and control slide includes a cylinder having at least one row of circumferentially spaced elongated openings, and a sliding sleeve mounted for axial displacement in the cylinder. Rings are sealed to the inner surface of the cylinder on opposite ...
07/20/1976
 
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