Class 137/513 - Mechanically interconnected

Subclass of Class 137 - Fluid handling
Definition: Apparatus in which there is a mechanical interconnection
No. of patents: 34
Last issue date: 03/20/2012

Number	Title	Issue Date
8136546	Pressure relief valve A pressure relief valve for blown fiber closures is provided having constituent components fabricated from plastic. An adaptor is provided for connection to a blown fiber closure, and a body welded to this adaptor, is provided to enclose a piston and a spring within...	03/20/2012
7234486	Pressure limiting valve for fuel injection devices A pressure limiting valve is provided which has a valve body assigned on the high-pressure side to a valve seat and an operating piston combined with the valve body to form a unit. The valve body and the operating piston are jointly spring-loaded and bound a pressur...	06/26/2007
7143645	Meter housing assembly and method of assembly A water meter housing assembly (10) comprises a cylindrical, plastic housing body (11), a non-cast housing bottom (13) of hydroformable or stamped brass, a single-piece strainer and sealing member (40) that is disposed in the housing bott...	12/05/2006
7069137	Valve flow metering control system and method A turbine valve control system is provided. The turbine valve control system includes a variable flow metering device, a first sensor, a second sensor, a third sensor, a fourth sensor, memory, and processing circuitry. The variable flow metering device is capable of...	06/27/2006
7004186	Surge relief apparatus for a valve A valve apparatus that includes surge relief includes a valve housing having an inlet port, an outlet port, and a poppet seat between the inlet port and the outlet port. The valve also includes a first moveable poppet piece having a closed position against the poppe...	02/28/2006
7004194	Check valve with pressure relief feature A check valve has a valve body and flapper. The flapper has a gasket which is sandwiched between a flapper base and a flapper cover. The flapper base has a flapper base stem which extends through an aperture in the gasket is retained within an aperture in the flappe...	02/28/2006
6748965	Double directional check valve and flow restrictor combination A double directional check valve and flow restrictor combination including a housing which contains a pair of axially-aligned check valves and a flow restrictor disposed between the check valves. Dry purge air flows into the housing through the flow restrictor, whic...	06/15/2004
6659735	Scroll compressor A scroll compressor that simplifies the structure of a valve and decrease the size of the entire compressor includes a casing having a first chamber into which a fluid is sucked and a second chamber at which compressed fluid is discharged, a driving unit ...	12/09/2003
6394219	Hydraulic power steering system with a pressure relief valve A hydraulic power steering system (10) for turning steerable wheels of a vehicle. The system (10) comprises a steering gear (12) including a hydraulic motor and a steering valve. The steering gear is susceptible to pressure fluctuations that cause noise d...	05/28/2002
6367501	Anti-geyser shut-off valve assembly An anti-geyser shut-off valve assembly for a water sprinkler irrigation system. It has a valve housing, a valve member, a coil spring, and a push nut that would be installed on the elongated shaft member of the valve housing for restricting the distance t...	04/09/2002
6237623	Nonsurgical intraurethral bladder control device An improved self contained automatic bladder control device includes a valve assembly mount for releasibly receiving a valve assembly. The preferably cylindrical mount has a textured outer surface designed to interact with urethral tissue. Thus the mount ...	05/29/2001
6039072	Safety valve arrangement A safety valve arrangement for an installation operating with a pressure medium has a pressure medium input and a pressure medium output connected by a valve. The valve comprises a valve seat and a valve closing element. The valve closing element is movea...	03/21/2000
5941270	Butterfly type two-way check valve for an automatic transmission An improved two-way check valve for controlling the flow of fluid to an element from either one of a pair of hydraulic sources in a hydraulic automatic transmission, the check valve having a flow cavity in which a pivotal flapper valve is mounted so as to...	08/24/1999
5931191	Flow control valve for passing two fluids in opposite directions A flow control valve includes a piston moveable in a cylindrical chamber between an inlet opening and an outlet opening. The piston head has a maximum diameter smaller than the wall of the chamber to define a fixed orifice. The opposite end of the piston ...	08/03/1999
5836349	Bidirectional flow control device A device for controlling or metering fluid flow in either direction through a conduit. The device comprises a shell disposed in communication with the conduit. Disposed within the shell is a body having a pair of metering orifices axially extending theret...	11/17/1998
5732737	Conforce valve A pressure responsive check valve designed to quickly close in response to a drop in pressure below a pre-determined level. When used at the top of a fluid filled tank such as one used for heating oil, the valve prevents tank syphon by stopping fluid flow...	03/31/1998
5707283	Dual baffle system in automatic air inlets for livestock facilities A dual baffle system which can be incorporated into automatic air inlets used in livestock facilities. This system consists of four different components: two baffles, spring, opening mechanisms, and stationary bracket. This baffle system is positioned ins...	01/13/1998
5465752	Multi-function valve for a riser in a sprinkler system A multi-function valve for installation in a riser of a sprinkler system provides two valve functions. One function is to stop flow automatically when breakage of a sprinkler head causes the flow rate to exceed a predetermined threshold. The second functi...	11/14/1995
5129414	Expansible chamber device having variably restrained valve systems In accordance with an illustrative embodiment of the present invention, an expansible chamber device includes a piston movable within a cylinder, a head on the cylinder having intake and exhaust ports, a normally-open intake valve for closing the intake p...	07/14/1992
5111843	Expansible chamber device having variably restrained valve systems In accordance with an illustrative embodiment of the present invention, an expansible chamber device includes a piston movable within a cylinder, a head on the cylinder having intake and exhaust ports, a normally-open intake valve for closing the intake p...	05/12/1992
5004009	Valve device for controlling liquid flow A valve device comprises a vertical, tubular housing, a vertical valve member in the housing, and a coil-form compression spring encircling the member and urging it upwardly against a valve seat in the housing lower end. The member includes an upper, obtu...	04/02/1991
4947672	Hydraulic compression tool having an improved relief and release valve A valve for use in a hydraulic compression tool. The valve has a frame with a central chamber, a first inlet, a second inlet and a discharged outlet. A first gate is located at the first inlet. A plunger assembly having a first plunger member and a second...	08/14/1990
4850392	Double poppet relief valve A double poppet area relief valve for use in a well treatment pumping system. The relief valve includes a housing comprising a cylinder and a body. A piston is disposed in the cylinder and has a push rod extending therefrom into the body. A double poppet ...	07/25/1989
4484597	Homogenizer device, in particular for the production of whipped cream A homogenizer device, in particular for the production of whipped cream, comprising in combination, the following components: an external sleeve and an internal sleeve between which is formed a convoluted labyrinth, the internal sleeve housing a valve ele...	11/27/1984
4354762	Emulsifying assembly An emulsifying assembly for immiscible liquids comprises a metering-mixing device and an emulsifying device coupled thereto. The metering-mixing device includes two supply ducts for the liquids to be mixed and an output duct for the formed mixture, the ra...	10/19/1982
4321942	Backflow preventer valve A backflow preventer valve including a housing structure having inlet and outlet ports therethrough for attaching to system conduits, a chamber formed in the housing, a pair of spaced valve seats associated with one of the ports including a space formed b...	03/30/1982
4249568	Backflow preventer valve A backflow preventer valve including a housing structure having inlet and outlet ports therethrough for attaching to system conduits, a chamber formed in the housing, a pair of spaced valve seats associated with one of the ports including an air space for...	02/10/1981
4248265	Adjustable relief valve An improved adjustable relief valve is provided having a valve body with a valve body inlet and outlet disposed therein. A reciprocating plunger is disposed in said valve body, and is movable between a first closed position isolating said valve body inlet...	02/03/1981
4184510	Valued device for controlling vacuum in surgery Apparatus and method for applying aspiration, irrigation, medication and ultrasonic power and dwell time to biotissue for surgery and treatment wherein the pressure for both aspirating and irrigating is precisely and accurately maintained by the use of a ...	01/22/1980
4046163	Relief valve An improved pressure relief valve for tubeless tires or the like is provided. The pressure relief valve includes a novel poppet valve dust cover structure which will automatically reposition the dust cover after each opening or cycle of the relief valve a...	09/06/1977
4015623	Tire valve with pressure release means A valve assembly having a pair of flow passages in fluid communication with a chamber leading to a tire. One of the passages contains a typical one-way valve core mechanism while the other passage contains a pressure release mechanism. The cross sectional...	04/05/1977
4005726	Thermomagnetic valve A hot fluid is directed through a valved conduit inlet. Downstream of the inlet, the conduit divides into a pair of outlets through which the hot fluid flows. The flow through the outlets is controlled by a pair of vertically oriented valves linked togeth...	02/01/1977
3974848	Three pot two way check valve A three port, two way check valve is disclosed. It is made of a standard tee and standard flanges attached thereto, typically in conformance with API standards. A flat disc is inserted in one of the openings, the disc incorporating an inernal circular val...	08/17/1976
3934604	Proportioning apparatus Proportioning apparatus comprising a pair of coaxial tubular members with passages having first and second outwardly extending walls of the same cross-sectional configuration, first and second valve bodies for coaction with said walls for progressively op...	01/27/1976

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Class 137/513 - Mechanically interconnected