Class 137/565.15 - Direct response valve

Subclass of Class 137 - Fluid handling
Definition: Subject matter including (a) a valve head having a face
No. of patents: 20
Last issue date: 11/29/2011

Number	Title	Issue Date
8066030	Fuel conveying device Disclosed is a fuel conveying device including a valve housing in which a pressure release valve and a non-return valve are arranged parallel to one another, the pressure release valve having a first inlet, which downstream of a valve seat opens into a valve chamber...	11/29/2011
7401623	Double-acting valve unit A hydraulic system includes a charge pump which supplies fluid to variable displacement main pump, a fluid reservoir and valve unit. The valve unit includes a hollow housing having a first end communicated with the reservoir and a second end communicated with the ch...	07/22/2008
7354427	Vial adaptor for regulating pressure In certain embodiments, a vial adaptor for removing liquid contents from a vial includes a piercing member and a bag. The bag can be contained within the piercing member such that the bag is introduced to the vial when the vial adaptor is coupled with the vial. In s...	04/08/2008
7329339	Strainer device for fuel tank A strainer device for a fuel tank includes a sucking passage member provided with a passage opened in the fuel tank; a filtering member attached to the sucking passage member for covering a hole of the passage; and a conduit connecting portion extending outside the ...	02/12/2008
7121291	Check valve, auxiliary circulating device and method for driving the auxiliary circulating device A check valve includes a casing member, a tear-drop shaped ball member installed in the casing member, a latching member which is formed at an inner wall of the casing member and an airtight valve which is formed at an inner wall of the casing member. When forward f...	10/17/2006
7000626	Instantaneous and constant fluid delivery system This is a method and means for maintaining a constant supply of a fluid with specific characteristics within a fluid supply conduit from a supply source of the fluid with specific characteristics at a point of service of the fluid with specific characteristics in wh...	02/21/2006
6705339	Surge check unit for a liquid distribution system A safety check unit for use in a liquid distribution system for preventing damage to a pump and associated components of the system in event of loss in pumping pressure. The unit provides a check component to prevent back-flow of the liquid when the pump is shut dow...	03/16/2004
6543473	Damper valve and a hydraulic power steering device using the same A casing accommodates therein a movable valve adapted to be moved away from a valve seat by a hydraulic oil flowing through an oil-hydraulic circuit from a hydraulic cylinder to an oil-hydraulic pump. In an event of oscillatory hydraulic pressures in the ...	04/08/2003
6196246	Freeze-resistant plumbing system in combination with a backflow preventer A plumbing system which, when ambient outdoor temperatures drop below freezing, circulates water to prevent it from freezing, utilizing a check valve to prevent water from flowing back into the water main and further utilizing a relief valve which can ope...	03/06/2001
5988213	Vehicular fuel supplying apparatus A vehicular fuel supplying apparatus comprising an in-tank type fuel pump mounted within the fuel tank from an opening in a bottom wall of a fuel tank. A fuel flowing out prevention valve 21 is connected between a discharge port 7a of a fuel pump 7 and a ...	11/23/1999
5470150	System for mixing and activating polymers An apparatus for mixing and activating polymer which includes the introduction of gas with water and polymer in order to create a variable density type foam which aids in the activation and enhances the efficiency of the polymer. The apparatus of the pref...	11/28/1995
5232016	Vacuum storage container A vacuum storage container, which comprises a container with a lid for sealing the container; the lid is mounted with a sucking valve, which is a check valve to have the air in the container pumped out only in one-way upon the container being closed herme...	08/03/1993
5139653	System for draining water from oil storage tanks with periodic monitoring and recirculation An automatic drainage system is described for draining one of two non-miscible liquids which are of different densities from at least one tank (1) via a drain valve (3,10,60) including a system for monitoring the relative proportions of the non-miscible l...	08/18/1992
5123443	Fluid delivery system A fluid delivery system is provided to deliver precise volumes of a plurality of fluids in sequence to a treatment reservoir. Fluid channels are formed in a plate structure to provide a means for delivering fluids from a plurality of fluid reservoirs to o...	06/23/1992
5123441	Apparatus for fluid transfer An apparatus for fluid transfer having a housing adapted to be mounted on a container adapted to house fluid, a valve mounted with the housing operable in a normal first attitude to seal the container therethrough and adjustable to a second attitude to pe...	06/23/1992
5004536	Water reclamation apparatus A water reclamation apparatus for recycling water in a system including a reclamation tank for holding water to be recycled, a first conduit for conveying water to the reclamation tank, a second conduit for conveying water from the reclamation tank, an ou...	04/02/1991
4974570	Fuel supply module A vehicle fuel pumping unit wherein a reserve fuel supply container is located within the fuel tank to supply liquid fuel to a motor-operated pump when the tank is nearly empty. The invention addresses the problem of pump starvation when the tank is nearl...	12/04/1990
4926904	Pressure washer A housing for a pressure washer for internal components of the washer such as a pump, an electric motor for the pump and a valve assembly. The housing has first and second identical interconnected housing halves. The inner surface of the housing halves in...	05/22/1990
3978886	Backflow safety valve for therapy pools A valve which is particularly adapted for use as a backflow safety valve for therapy pools, in which it prevents water from flowing through the air supply line and damaging the air blower. When the water outlets of the therapy pool are temporarily blocked...	09/07/1976
3955594	Pressure operated valve systems Fluid flow through a conduit is controlled by varying the pressure of the fluid. The fluid passes through a normally closed valve comprising a flexible sleeve held in pinched closed condition by an elastic material which is isolated from all pressures exc...	05/11/1976

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Class 137/565.15 - Direct response valve