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Class 251/331 - Diaphragm


Subclass of Class 251 - Valves and valve actuation
Definition: Devices wherein the reciprocating member that opens and
No. of patents: 466
Last issue date: 01/03/2012


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NumberTitleIssue Date
8087641Fluid control valve with a holding member to prevent loosening of threaded engagement
For providing a fluid control valve capable of preventing looseness of a screw part between a valve main body and a valve upper body, the fluid control valve comprises a resin valve main body wherein a valve seat comes into or out of contact with a diaphragm, and a ...
01/03/2012
7988130Valve for vacuum exhaustion system
The invention provides a valve and a method of operating the valve that makes it possible to reduce the diameter of the vacuum exhaustion pipings to make the facility for the vacuum exhaustion system small, which results in lower costs and shortens vacuum exhaustion...
08/02/2011
7964317Valve having valve element displaced by at least one of a movement of a diaphragm and a movement of an actuator, and fuel cell using the valve
A valve and a fuel cell using the same are provided, the valve having a fluid inlet, a fluid outlet, a flow path communicating therebetween, a valve element provided in the flow path, a diaphragm which is disposed so as to separate the inside from the outside of the...
06/21/2011
7926785Valve diaphragm with a compression restraining ring, and valve including same
A valve is disclosed including a body, a bonnet, a flexible diaphragm adapted to be positioned between the bonnet and the body, and an actuator mechanism. The flexible diaphragm has a central portion and a peripheral portion surrounding the central portion, wherein ...
04/19/2011
7790325Valve having valve element displaced by at least one of a movement of a diaphragm and a movement of an actuator, and fuel cell using the valve
A valve and a fuel cell using the same are provided, the valve having a fluid inlet, a fluid outlet, a flow path communicating therebetween, a valve element provided in the flow path, a diaphragm which is disposed so as to separate the inside from the outside of the...
09/07/2010
7614606Compressor for a diaphragm valve
A compressor for operating a diaphragm of polymer material for a diaphragm valve includes a base body having a diaphragm-proximal surface, and a material layer at least partially provided on the diaphragm-proximal surface and having a very low coefficient of frictio...
11/10/2009
7607641Microfluidic valve mechanism
One or more diaphragm valves are integrated as part of a cover of a microfluidic cassette cartridge. A rigid body portion includes one or more recessed valve areas and a plurality of fluid channels. A recessed valve area is disposed along either a bottom surface or ...
10/27/2009
7581712Valve
A valve (100) includes a body (1) having a valve seat (10) formed therein, a bonnet (2), a diaphragm (3) supporting a valve element (18) abutting against and moving away from the valve seat (10), and an elastic member...
09/01/2009
7571892Sanitary drain valve
A valve assembly includes a valve body having an internal cavity, an orifice in communication with the internal cavity for communicating with a process in a tank or conduit and an outlet through which process material entering the internal cavity through the orifice...
08/11/2009
7527241Diaphargm valve and open close element for said valve
A diaphragm valve having an inlet sleeve and an outlet sleeve that converge to a fluid flow chamber contains a valve seat engaged by an elastic diaphragm that is composed of a peripheral flange connected to a central dome-shaped part. The cross section of the two sl...
05/05/2009
7472887Valve for vacuum exhaustion system
The present invention provides a valve which makes it possible to reduce the diameter of the vacuum exhaustion pipings for making the facility for the vacuum exhaustion system small, as a result lowering the costs, and making the vacuum exhaustion time short, and al...
01/06/2009
7416165Diaphragm valve for the vacuum exhaustion system
A diaphragm valve 1 is provided with a body 2 having a flow-in passage 6, a flow-out passage 7, and a valve seat 8 formed between the passages; a diaphragm 3 installed in the body 2 and permitted to rest on and move a...
08/26/2008
7398954Remote-coupled faucet adapter
A faucet adapter including an inlet assembly that includes a connecting portion configured for connection to a fluid source. A handle remote from the connecting portion is operably connected thereto such that actuation of the handle results in actuation of the conne...
07/15/2008
7389969Chemical liquid valve
A chemical liquid valve is arranged such that a diaphragm coupled to a piston rod is brought into/out of contact with a valve seat provided between an inlet port and an outlet port. To achieve a chemical liquid valve providing stable sealing strength, the diaphragm ...
06/24/2008
7377483Diaphragm valve
A diaphragm valve for opening or closing itself through making direct contact of or through breaking the direct contract of a metal diaphragm with a valve seat disposed inside a body provided with an inlet port and an outlet port. The diaphragm valve includes an ele...
05/27/2008
7370664Flow control device
A flow control device having a control member for forming a seal with another part of the flow control device. The control member having a base material and a portion or surface that is a softer or more deformable than the base material or the portion of the control...
05/13/2008
7370667Flow through pressure regulator with pinch valve
A fluid pressure regulator includes a regulator housing having an inlet end and an outlet end; a flexible flow tube extending between the inlet end and the outlet end; a hollow piston located at a downstream location relative to a mid-portion of the flow tube in a d...
05/13/2008
7364132Sanitary diaphragm valve
A sanitary diaphragm valve is provided that includes a generally dome shaped diaphragm having a central boss that can be connected to or driven by a valve actuator. The diaphragm includes an outer peripheral edge and a relatively thin web portion that connects the b...
04/29/2008
7357368Combined valve
A combined valve is constructed by integrating a manual valve operating as a safety mechanism and a pilot valve. When a handle of a knob of the manual valve is in a safety mechanism release position, a valve mechanism can be opened and closed depending on whether or...
04/15/2008
7341073Valve member for a balanced pressure reducer
A valve member (1) for a balanced pressure reducer, said valve member (1) having a wide head (1′) designed to co-operate with a valve seat (6), said valve member (1) having a central body (2) made of a material that is har...
03/11/2008
7341236Pilot operated valve with a pressure balanced poppet
A pilot operated valve has a main poppet that selectively controls flow of fluid between first and second ports in response to pressure in a control chamber on one side of the main poppet. The main poppet has an aperture extending between the control chamber and the...
03/11/2008
7332040Semiconductor manufacturing system having a vaporizer which efficiently vaporizes a liquid material
A vaporizer can efficiently vaporize a liquid material under a depressurized atmosphere. The liquid material is temporarily stored in a liquid storing chamber, and is supplied to a vaporizing chamber set in the depressurized atmosphere via a small aperture. An inlet...
02/19/2008
7328882Microfluidic modulating valve
A valve is provided that can selectively change the size of a flow channel in a valve in order to modulate the fluid flow through the valve. In one illustrative embodiment, the valve includes a housing that defines a cavity, with an inlet and an outlet extending int...
02/12/2008
7325781Automatic bathroom flushers with modular design
A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou...
02/05/2008
7314064Gate valve cable assembly
A valve construction for use with a holding or waste removal tank of a vehicle is provided and includes a gate valve having a valve closure member, and at least one panel having an opening extending from an inside surface to an outside surface connected to the vehic...
01/01/2008
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
7311292Sanitary diaphragm valve
The invention relates to a valve intended in particular for sanitary applications, comprising a body in which there are a first and a second perpendicular duct for the flow of a fluid to be shut off; a closure member acts in the valve body to close and open the firs...
12/25/2007
7299818Integrated microvalve and method for manufacturing a microvalve
An integrated microvalve has a substrate, a first function layer applied to the substrate, and a second function layer applied to the first function layer, the first function layer being designed as a diaphragm in at least one valve area, the second function layer b...
11/27/2007
7301299Injection molding machine and a control method of an injection molding machine
An injection molding machine has a control device which controls an input to an incorporated motor. The control device sets a setting value a setting value of the motor to be held for a predetermined setting time. Additionally, the control device determines a reduct...
11/27/2007
7296780Control valve assembly structure for spray guns
A control valve assembly structure for spray guns comprises a pistol body made up of water inlet and outlet conduits in fluid communication with a valve chamber having a control valve assembly mounted therein wherein the water inlet and outlet conduits and the valve...
11/20/2007
7294278Method for oxygenating wastewater
A method and apparatus creates gas-enriched fluid that is used to treat wastewater. In one embodiment, the wastewater is withdrawn from a supply of wastewater to be treated, and the wastewater is delivered in an atomized manner to a vessel pressurized with gas to fo...
11/13/2007
7290753Torque sensitive diaphragm valve
This invention relates to pressure torque sanitary diaphragm valves and methods of using torque sensitive sanitary valves in the production of chemical and biological therapeutics to obtain procedural reproducibility in the production pharmaceutical compounds and in...
11/06/2007
7273072Valve body for a valve assembly
A valve body for a valve assembly includes a main passageway in which a primary valve is received which has a weir constructed to define a valve seat and to interact with a valve element in the form of a diaphragm. Integrated in the valve body is a secondary valve h...
09/25/2007
7267669Two site infusion apparatus
An apparatus for use in delivering pain medication to separate locations from a single source of pressurized medication includes a valve housing, a cap, and a flexible diaphragm. The valve housing includes a first end and a second end and an inlet passage. The first...
09/11/2007
7264223Flow rate control apparatus
A flow rate control valve comprises a rotary driving source which is rotated by a control signal, a movable member which is displaceable by the aid of a transmitting shaft under a rotary action of the rotary driving source, a valve mechanism which is connected to th...
09/04/2007
7255324Quarter-turn diaphragm valve
A quarter-turn valve includes a valve body having an inlet, an outlet, and a diaphragm adjacent arranged in said valve body for movement between a closed and opened position for restricting and controlling fluid flow. The valve further includes an input shaft for re...
08/14/2007
7243903Valve diaphragm with a compression restraining ring, and valve including same
A valve has a body, a bonnet, an actuator mechanism, and a flexible diaphragm adapted to be positioned between the bonnet and the body. The flexible diaphragm has a central portion and a peripheral portion, and the central portion is covered with a thin alloy layer....
07/17/2007
7232106Tilted and stepped diaphragm for control valves
A diaphragm operated valve having the diaphragm attached at its lower end to a valve closure plug, and movable therewith, and attached at its upper end to a portion of valve body that forms the pressure cavity. The diaphragm has a stepped portion between its upper a...
06/19/2007
7222636Electronically actuated valve
The present invention relates to a method and apparatus for delivery of reactants to a substrate processing chamber. An electronically controlled valve assembly is provided for rapid delivery of pulses of reactants to the chamber. The valve assembly comprises a valv...
05/29/2007
7201363Valve
A valve body (12) has an inlet opening (22) and an outlet opening (24) interconnected by a fluid passageway (28, 30) having a flow aperture (34). The valve comprises a diaphragm (14) (typically of the duckbill type) that is ...
04/10/2007
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