Class 251/238 - Spring

Subclass of Class 251 - Valves and valve actuation
Definition: Valves wherein the valve is spring biased.
No. of patents: 22
Last issue date: 02/22/2011

Number	Title	Issue Date
7891638	Water control valve core with a segmented locking function The present invention provides a water control valve core with a segmented locking function. The invention includes a valve casing, a brake unit, and a water control element. A bottom plate under the tube portion of the seat of the brake unit is placed within the ho...	02/22/2011
7353834	Variable rate pressure regulator A pressure regulator valve including a valve seat separating a fluid flowpath into an upstream region and a downstream region. A valve closure member is mounted on a valve stem, the valve stem operable to vary a separation between the valve seat and the valve closur...	04/08/2008
7309136	Cup with a fountain The present invention relates to a cup or a drinking container and in particular, to a drinking cup a spouting-water and lighting effect during drinking. The cup comprises a liquid container, a liquid output pipe, a spray pipe, a lighting circuit, etc, characterized...	12/18/2007
7090150	Activating mechanism for an intercept valve for a spray gun used in water cleaner apparatus The activating mechanism comprises a manually-operated control lever rotatably constrained at a first end thereof to a pivot arranged in proximity of a front portion of a handle grip of a spray gun and an activating lever acting on a pusher element of an intercept v...	08/15/2006
6908071	Self-closing faucet with shearing action A faucet includes a body having a main bore including an inlet and an outlet. A bonnet and spout are connected to the body. A stem includes a first portion inserted into the outlet of the main bore and a second portion that projects through the bonnet chamber to a d...	06/21/2005
6776388	Valve actuator with internal amplifying means A Valve actuator with integral amplifying means having multiple linkage arrangements able to amplify the force generated by an air signal acting on a flexible diaphragm, and to transmit this force amplified on to a lower compression spring and ultimately on to a sli...	08/17/2004
6725820	Valve-operating mechanism in engine A valve-operating mechanism includes cam followers carried on an engine body 1 with their tip ends being in sliding contact with the cam, rocker arms integrally connected to the cam followers and carried on the engine body coaxially with said cam followers wi...	04/27/2004
6126046	Spigot adaptor A device for facilitating easier operation of a spigot having a body portion, a reciprocatable portion which is linearly movable with respect to the spigot body portion between an open position and a closed position to regulate fluid flow through the spig...	10/03/2000
5560389	Pressure reducing valve device for a vehicle A pressure reducing valve device includes an adjusting spring for changing its length by a first screw member and a valve stem rotatable by a second screw member so as to control a spring ratio, and a load sensing reducing valve movable on a bracket so as...	10/01/1996
5458288	Drinking fountain The invention involves the use in a drinking fountain of a large control bar which is pressed by the user to operate a water flow control mechanism. The control bar is located at the front of the fountain. The control bar covers the entirety of the front ...	10/17/1995
5447178	Center position biased slide air valve The present invention provides an air valve (10) for inflating and deflating an inflatable. The air valve (10) includes a housing floor (16) with air ports (36, 38), and a slide bar (12) with an air passageway (54) formed therein. The slide bar (12) is su...	09/05/1995
5384919	Toilet seat supported bidet A conventional toilet includes a bowl having a bowl interior supported upon a base and having a rectangular flush tank supplied from a conventional water supply. The bowl portion supports a conventional toilet seat having a center hole and a hinged attach...	01/31/1995
5044171	Counter with integral carbonated beverage dispenser A counter with internal carbonated beverage dispenser is disclosed. A counter with a bottom platform, a refrigerating unit disposed on the bottom platform and under the counter, a mixing drum disposed on the bottom platform and under the counter, and a ca...	09/03/1991
5033509	Structure of water flow control device A water flow control device comprising a water flow control system controlled to operate by a timer system. The timer system comprises a timer fastened in a control wheel mounted on a mounting table for time setting. The water flow control system comprise...	07/23/1991
4936341	Pressure regulator A pressure regulator for independent automobile heater fuel lines, particularly for connection upstream of a dosing pump. The pressure regulator includes an upper housing portion, and a lower housing portion which are connected together with a diaphragm b...	06/26/1990
4898130	Valve mechanisms A valve mechanism includes a poppet type valve, a valve lever pivotally mounted at one end and attached at the other end to the end of the stem of the valve, the valve lever defines a track in which is located a drive pin and a drive mechanism is arranged...	02/06/1990
4633900	Constant airflow control apparatus for air conditioning A constant airflow control apparatus is connected to an air duct of an air conditioning system to keep the flow rate of air fed from the air duct constant. The apparatus comprises a rectangular pressure receiving plate slidably mounted on a guide shaft ex...	01/06/1987
4607795	Spray head assembly A spray head assembly is made from a very few number of injection molded parts. Preferably a pair of elongated housing shells fit together in face-to-face confrontation, with a spring biased actuator arm or control lever pivotally mounted between them. Th...	08/26/1986
4606369	Manually-operable fluid pressure regulating valve device A manually-operable pressure-regulating valve device, including a special handle mechanism and a self-lapping valve assembly having a feedback piston on which delivery pressure acts to urge the valve assembly actuating stem in a direction opposite handle ...	08/19/1986
4527743	Spray head assembly A spray head assembly is made primarily from a very few number of injection molded parts. Preferably a pair of elongated housing shells fit together in face-to-face confrontation, with a spring biased actuator arm or control lever pivotally mounted betwee...	07/09/1985
4411845	Throttle valve assembly An improved throttle valve assembly of the type which includes a throttle body provided with a throttle lever and a second, intermediate lever interconnected with each other by a roller/cam slot mechanism, said throttle lever being adapted to be moved by ...	10/25/1983
4379544	Turbine trip valve mechanism A trip mechanism for a trip valve is made up of a reset lever and a bell crank operatively connected through a guide stem which is guidingly received in a flange portion of the valve housing. A valve stem and the guide stem are slidably connected to the r...	04/12/1983

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Class 251/238 - Spring