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Class 251/75 - WITH SNAP ACTION


Subclass of Class 251 - Valves and valve actuation
Definition: Subject matter wherein the valve actuator is provided with
No. of patents: 112
Last issue date: 05/06/2008


1      
NumberTitleIssue Date
7367540Fast closing clamp
The invention relates to a fast closing clamp for the pinching off of hoses, wherein the fast closing clamp has a clamp jaw with a clamping position, in which it can pinch off a hose, and an open position. The fast closing clamp in accordance with the invention furt...
05/06/2008
7367786Linear compressor
A linear compressor includes: a cylinder block forming a compressing chamber; a piston reciprocatably provided in the compressing chamber; a reciprocating member connected to the piston to reciprocate with the piston as a single body; a driver driving the reciprocat...
05/06/2008
7314208Apparatus and method for selectively channeling a fluid
An apparatus for selectively channeling a high temperature fluid without chemically reacting with the fluid. The apparatus includes an inlet and a membrane positioned adjacent to the inlet, each composed of a chemically inert material. The membrane is formed by comp...
01/01/2008
7255326Single-and-continual shot changeover device for a nailing gun
A single-and-continual shot changeover device for a nailing gun includes a trigger shaft positioned in an interior of a trigger body, a trigger inner member pivotally connected with an intermediate fitting stage of the trigger shaft, which also has two slide shaft s...
08/14/2007
7178785Stem arrangement for pivot actuated sleeve valve
A valve assembly has a valve body and a fluid passage through the valve body with an inlet end and an outlet end. A valve seat is defined within the fluid passage. A sleeve is axially slidable within the fluid passage and has an upstream end, a downstream end, and a...
02/20/2007
7178553Leak-resistant solenoid valves
A leak resistant solenoid valve comprises a valve body having an interior chamber, an inlet, an outlet, and at least one valve seat and valve plug located in the interior chamber. The valve plug has a sealing surface and is axially movable between open and closed po...
02/20/2007
7114697Fast valve actuator and tool provided with same
The invention relates to a quick-acting valve actuator comprising: a driven member (31) driven by a drive device (35) suitable for causing the driven member (31) to travel along a stroke (C1) to a trigge...
10/03/2006
6945276Valve with unilaterally constrained piezoelectric bending element as actuating device
Valve with a displaceable actuating device that controls the movements of at least one actual sealing element for opening and closing, and the actuating device is loaded with an elastic element essentially in a perpendicular direction relative to the direction of di...
09/20/2005
6886589Float valve
The float valve (11) controls water level e.g. in an associated plant pot. A housing (21) has a water inlet (25) with an inlet port (26), a float (31) able to rise and fall with the level of the water in the housing (21), a ...
05/03/2005
6742761Miniature latching valve
An SMA actuated miniature latching valve for on and off control of fluid flow. A valve closure includes a poppet for opening and closing the fluid flow path. The poppet is operated responsive to an actuator mechanism which has SMA wires arranged to be actuated by el...
06/01/2004
6631830Snap action ball valve assembly and liquid dispenser using same
A spring-controlled snap action valve assembly and an apparatus for dispensing pressurized liquid using the valve assembly, the apparatus including a connection to a source of pressurized liquid, the spring-controlled snap action ball valve assembly inclu...
10/14/2003
6575190Non-return valve for fuel tank
A non-return valve for a fuel tank, the valve comprising a substantially tubular body and a deformable shutter member fixed to said body, said shutter member being formed integrally by molding a plastics material and being shaped in such a manner as to re...
06/10/2003
6386506Valve construction
An improved snap action valve construction is disclosed in which a compensator blade has deflection resisting ribs positioned along a weld line defined between an active blade and the compensator blade. Additionally, the compensator blade may have a reces...
05/14/2002
6283147Non-return valve for a fuel tank
A non-return valve for a fuel tank, the valve including a bistable closure member. The closure member is made of an elastomeric plastics material and in the closed position it has an umbrella-configuration, and in the open position it has an inverted umbr...
09/04/2001
6116569Valve construction
An improved snap action valve construction is disclosed in which stiffening ribs are provided on the snap blade in an area adjacent the valve member carried thereby to aid in resisting flexing of the blade in this area. Additionally, a rib may be provided...
09/12/2000
6089533Arrangement having at least one hydraulic actuator
The invention is directed to an arrangement having one or several hydraulic actuators. The arrangement is characterized in that the hydraulic actuators are realized, at in part, by utilizing bistable magnetic valves....
07/18/2000
5984645Compressor with combined pressure sensor and high pressure relief valve assembly
A combined compressor pressure sensor and excess pressure relief valve (12) uses a formed disk (22) that snaps down and back up at a pair of predetermined pressures. The disk (22), when it snaps down, opens a plug (34) to in turn allow excess pressure fro...
11/16/1999
5957151Automatic pressure regulating valve
A simple and frictionless pressure limiting valve assembly for use in pneumatic tire valves wherein a snap diaphragm is movable into and out of a sealing relationship with a valve member by means of the snap action of a snap action diaphragm. The snap act...
09/28/1999
5906219Pressure sensitive valves
A pressure sensitive valve 10 comprises a valve body 12 defining a bore 14, an inlet port 16 and an outlet port 18. The inlet port 16 is in fluid communication with the outlet port 18 and defines a fluid flow path 20. The fluid flow path 20 is in communic...
05/25/1999
5855221Adjustable preset tire deflator and calibration means
A tire deflator includes a tubular housing with indicia markings showing a desired terminal pressure to preset a tire to a desired air pressure. Click stops are provided at air pressure intervals via indentations, which interact with springy pointer. A ca...
01/05/1999
5810327Shutoff valve with spring-loaded valve disk
A shutoff valve with a spring-loaded valve disk. The spring, designed as a tension or pressure spring is arranged outside of the valve housing, where a pivoting arm is attached to the actuating shaft. One end of the arm remote from the shaft is engaged by...
09/22/1998
5794749Temperature-responsive fluid-type fan coupling apparatus
A temperature-responsive fluid-type fan coupling has a sealing casing with a partition plate disposed therein. The partition plate divides interior portions of the casing into an oil reservoir chamber and a torque transmission chamber. A port extends thro...
08/18/1998
5711757Controller especially for pneumatic continuous passive motion devices
A controller (10) having a housing (11) within which is positioned a moveable portion (13). The housing comprises an outer housing portion (12a) and an inner housing portion (12b) and having a vent (14) and a limit peg (22). Detent means (15) defines the ...
01/27/1998
5657784Control arrangement for actuating a shut-off valve and method of operation
A control arrangement (10) for a shut-off valve actuable by vacuum and intended for use in vacuum waste water systems, comprising a first valve (14) which is actuated by static pressure of collected waste water, and including a chamber (56) which can be p...
08/19/1997
5449143Air vent control apparatus
An air vent includes a louver blade rotatable to adjusted positions by a motor. A control mechanism which connects the motor with the louver blade includes a control member connected to the motor, and a rotation transmitting member connecting the control ...
09/12/1995
5445501Snap action float valve assembly for liquid feeding device
A device for feeding liquid under pressure comprises a vessel having an operating fluid inlet, an operating fluid outlet, an inlet opening for the liquid to be fed under pressure and an outlet opening for the liquid to be fed under pressure; a float dispo...
08/29/1995
5426990Over-center toggle linkage valve actuating mechanism with adjustable tension spring preloading
A toggle linkage over-center mechanism employs first and second solid, metal links having facing axial ends pivoted to each other for pivoting about a first axis, the first link is pivotably coupled at one end to the fixed support for pivoting about a sec...
06/27/1995
5411051Bistable valve
A self-regulating tire pressure system and method employs a bistable valve (10) that allows air from a high pressure reservoir (6) to replenish the pressure within a tire (4) when it has fallen below an actuating pressure, and discontinues its operation o...
05/02/1995
5293919Self-regulating tire pressure system and method
A self-regulating tire pressure system and method employs a bistable valve (10) that allows air from a high pressure reservoir (6) to replenish the pressure within a tire (4) when it has fallen below an actuating pressure, and discontinues its operation o...
03/15/1994
5280808Air valve actuator for reciprocable machine
An air control valve for directing air flow in a double-acting reciprocable motor, where the valve has a first link which is pivotally connected at one end to the motor and mechanically coupled along its length to a reciprocable motor member; a second lin...
01/25/1994
5265841Plunger armature electromagnetic valve
An electromagnetic valve assembly having a valve unit with a valve seat and a coil arrangement. An armature is slidably disposed in the bore of the coil arrangement and has one end cooperable with a core head to form an air gap and at the other end a clos...
11/30/1993
5255711Spring-loaded pressure regulating valve including rolling diaphragm and compensation for variation of spring force with diaphragm displacement
A chamber (24) is filled with a fluid whose pressure is to be regulated to a predetermined value. A valve (30) is disposed between the chamber (24) and a high pressure source of the fluid. A rolling diaphragm (18) has a face (18c) exposed to the fluid in ...
10/26/1993
5230361Snap action toggle valve actuator assembly
A snap action toggle valve actuator assembly for use in a fluid holding tank. Movement of a float or other movable actuating element causes pivotal movement of pivot arm, which compresses a spring. When the float element reaches a predetermined level, the...
07/27/1993
5211372Exhaust valve for a gas expansion system
A exhaust valve for use in a cryogenic gas expansion system which uses a non-metallic valve seat and a metallic valve disk assembly which is moved into and out of contact with the valve seat to close and open the valve, respectively. The valve disk assemb...
05/18/1993
5209455Valve and solenoid valve operated by very small force
There are provided a valve which is opened by an improved two-step motion, a valve which operates positively without leakage of fluid even when the difference in pressure between inlet and outlet of the valve is very small, and an improvement of a solenoi...
05/11/1993
5186207Small-capacity expansion valve
The expansion valve has an operating pressure setting member that can adjust the operating pressure of a pressure-activated diaphragm by moving a spring retainer of an operating spring against the force the spring which is interposed between the diaphragm...
02/16/1993
5012643Pressure-driven engine
A pressure-driven engine is provided therein with an intake valve and an exhaust valve the opening and closing operations of which are controlled by a combination of the urging force of the respective springs and the attractive force of the respective mag...
05/07/1991
4986308Switching microelectrovalve having a single membrane
The invention provides a fluid switching microelectrovalve in which the mobile member playing the role of closure member for one or other of the pipes (18,19) is a single membrane (23) with oriented deformation applied by a rocker (24) against one or othe...
01/22/1991
4969424Electromagnetic diaphragm valve
A diaphragm valve includes a magnetically attractive snap disc with two unrestrained positions in one of which its edge contacts a valve seat to block flow and an electromagnet operates to urge the disc to end of its two positions with additional means fo...
11/13/1990
4953579Quick acting diversion valves
A quick acting diversion valve can be constructed so that a pressure difference between the sides of a bistable diaphragm can be used to cause the diaphragm to change in configuration so as to move a valve body in a housing in order to change the manner i...
09/04/1990
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