Class 137/534 - Weight coaxial with valve

Subclass of Class 137 - Fluid handling
Definition: Valves in which the weight is coaxial with the valve disc
No. of patents: 21
Last issue date: 04/01/2008

Number	Title	Issue Date
7350539	Electromagnetic controlled fuel injection apparatus with poppet valve An electromagnetic controlled fuel injection apparatus has a poppet valve which controls the beginning and end of fuel injection by reciprocation. Inertia force and friction force arising from the reciprocating motion of the poppet valve are utilized effectively to ...	04/01/2008
7032575	Valve assembly for a fuel pump module A fuel pump module includes a reservoir configured to hold a supply of fuel. The reservoir includes a fuel passageway and defines a first seat on a first side of the fuel passageway and a second seat on a second side of the fuel passageway. The module also includes ...	04/25/2006
6823893	Non-return valve A non-return valve has a valve housing with a flow channel having a vertical channel section, an inlet aperture, an outlet aperture and a blocking device closing the flow channel. The blocking device comprises a valve seat surrounding the outlet aperture and a valve...	11/30/2004
6263907	Valve device of a storage tank for transporting oils or chemical compounds A valve device for a storage tank for transporting oils or chemical compounds, includes an upper body having a V-shaped valve seat at an upper end thereof. At least one screw hole with a closing cock is provided in the upper body. A lower body connected t...	07/24/2001
6123102	High pressure shut-off valve In a high-pressure shut-off valve, in particular for a hydraulic pressure system having a relatively high liquid delivery rate, the pressure device of the valve body has a plurality of back support rings arranged as a stack and moveable essentially in the...	09/26/2000
5873384	Pressure relief valve for pressure equalization between a closed space and the surrounding atmosphere A pressure relief valve includes a valve housing and a drop-shaped body with a conical valve surface that cooperates with a conical valve seat at an upwardly directed blow-off opening of the valve housing. The drop-shaped body is connected to a lifting di...	02/23/1999
5520209	Fluid relief device The present invention discloses a fluid relief device for relieving pressure of a fluid stored in a container or tank, or fluid used in a piece of equipment. In one aspect such a device has a body member with a primary channel therethrough in communicatio...	05/28/1996
5507311	Pressure regulator for a pressure cooker A pressure cooker pressure regulator having at least two operating thresholds, the regulator being of the type comprising a valve body fixed to the lid of a pressure cooker and having a valve seat formed therein, and a needle carrying a rating mass and be...	04/16/1996
5392811	High pressure fuel system valve A fuel system valve has a metal valve seat and a metal valve body. The metal valve body has a chamber which contains material which is moveable through the chamber in response to deceleration of the valve body. The forces of the material within the chambe...	02/28/1995
5236010	Weight controlled valve A pressure regulating valve 10 is provided in a housing 11 filled with oil 23 and having an inlet port 12 and an outlet port 13. A straight elongate vertical tube 14 having a lengthwise slot 19 near its lower end 15 is affixed to the housing and communica...	08/17/1993
4799508	Pressure regulating valve for presure cooker A pressure regulating valve for pressure cookers comprises a tubular projection (1) protruding from a cooker lid (2) and on which a needle (4) is poised, that is mounted to the bottom of an inverted cup shaped cylindrical body (6) provided with an externa...	01/24/1989
4741325	Operating valve for a pressure cooker The operating valve for a domestic pressure cooker has a movable body provided with a cone-point valve pintle which rests on the nozzle for the discharge of steam from the pressure cooker. The movable valve body has a lateral steam discharge opening of di...	05/03/1988
4595033	Low pressure high temperature safety valve A safety valve for relief of overpressure from a relatively low pressure high temperature fluid system with which the valve is intended to be operative. System pressure is communicated via a body inlet leading to the underside of a displaceable closure di...	06/17/1986
4566485	Free-floating neutrally-buoyant reciprocating pump valve for abrasive fluids A free-floating neutrally-bouyant, stemless, externally-guided, and abrasion-resistant valve for reciprocating pumps that quickly responds to pressure-gradient reversals across its sealing surfaces. The neutral buoyency is attained by means of a hollow ai...	01/28/1986
4560143	Pressure cooker relief valve assembly A relief valve assembly for pressure cookers in which the valve port is controlled by a predetermined weight. A skirt portion forming part of the mass of the weight surrounds the valve port so forming a chamber. The skirt portion has an opening in it such...	12/24/1985
4417861	Cell culture pumping system A low trauma, reversible flow pumping system is disclosed which is useful for transfer of biological fluids containing fragile components such as cells. The pumping system comprises a length of collapsible and flexible tubing in fluid communication at eac...	11/29/1983
4406860	Microwave canning apparatus A method and apparatus for canning food products in a non-metallic jar, utilizing a metallic or non-metallic jar lid and a non-metallic enclosure enveloping the jar and lid and which is placed within a microwave oven for heating with a pressure control ch...	09/27/1983
4308887	Gas damper A gas damper for regulating the mass flow of a stream of purging air as it is directed into an electrostatic precipitator including a generally cylindrical housing having a floating piston positioned in metering relationship to the discharge outlet of the...	01/05/1982
4245668	Pressure regulator A pressure or vacuum relieving device intended as a large capacity inbreathing or outbreathing apparatus for equipment and/or piping, operating under low to moderate gas pressure or vacuum, e.g. 1 to 15 psig pressure or 0-5 psi vacuum. The principal featu...	01/20/1981
4160462	Adjustable relief valves and pressure cookers incorporating such valves An adjustable relief valve comprising a valve member and a valve seating one of which acts against the other under the pressure of a predetermined weight to close a valve port, and a removable weight which can be added to the predetermined weight to vary ...	07/10/1979
3949781	Exhaust valve An exhaust valve, in pressure cooker lids, comprises a vertical tube on which a suitable weight is applied provided with several steam exhaust points which is provided on its free edge with an external thread where the weight is screwed, leaving a free in...	04/13/1976

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Class 137/534 - Weight coaxial with valve