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Class 137/505.18 - Balanced valve


Subclass of Class 137 - Fluid handling
Definition: Devices in which the valve is so related to the fluid controlled
No. of patents: 116
Last issue date: 03/27/2012


1      
NumberTitleIssue Date
8141580Pressure reducer
A pressure reducer for fluid lines, with a sealing piston (70, 110) as stop element, with an equalization piston (20a, 190) as a means for pressure equalization, with a single-part or multi-part connecting means (20b, 90,...
03/27/2012
7810517Multiple-input gas adjuster
A multiple-input gas adjuster includes a case having a chamber therein, an input channel, an output channel communicated with the chamber, a first input bore and a second input bore communicated with the input channel and the chamber. A pressure adjusting mechanism ...
10/12/2010
7712482Pressure-reducing valve
A pressure-reducing valve includes a housing, a pressure-reducing piston, a driving piston, and a spring mechanism. The housing is provided with a primary port and a secondary port. The pressure-reducing piston is displaceably retained in an interior of the housing....
05/11/2010
7650904Pressure-regulating valve with an integrated pressure gauge
A pressure-regulating valve with an integrated pressure gauge has a body, an inlet nipple, a pressure-control device and a knob assembly. The body is tubular and has an inlet opening, an outlet and an adjustment end. The inlet nipple is connected to the inlet openin...
01/26/2010
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
7308910Device for damping pressure surges
A device for damping pressure surges in a fluid with a housing (10) and a piston (14) that can be longitudinally displaced inside the housing (10) against the pretensioning force of a spring energy store (12). The piston (14) inter...
12/18/2007
7291565Method and system for treating a substrate with a high pressure fluid using fluorosilicic acid
A method and system is described for treating a substrate with a high pressure fluid, such as carbon dioxide in a supercritical state. A process chemistry is introduced to the high pressure fluid for treating the substrate surface. The process chemistry comprises fl...
11/06/2007
7258133Pressure reducing valve
A pressure reducing valve comprises a valve support member provided with a water passage, a valve seat fitting on the portion of the valve support member primary side relative to the secondary side end of the water passage, a cup-shaped valve body fitting on the sec...
08/21/2007
7255126Sanitary liquid pressure regulator
A liquid pressure reducing regulator having a pressure receiving means in liquid communication with the liquid inlet passage, upon which a liquid in the liquid inlet passage can exert a balancing force, and a means for communicating the balancing force to the diaphr...
08/14/2007
7255772High pressure processing chamber for semiconductor substrate
A high pressure chamber comprises a chamber housing, a platen, and a mechanical drive mechanism. The chamber housing comprises a first sealing surface. The platen comprises a region for holding the semiconductor substrate and a second sealing surface. The mechanical...
08/14/2007
7192665Regulator for fuel cell
A regulator for use with fuel cells, which is mounted in a pressure controller of a fuel cell system, has a first diaphragm flexible under the pressure of pilot air supplied as an oxidizing agent to a pilot chamber, a second diaphragm flexible under the pressure of ...
03/20/2007
7178335Pressure regulator
A pressure regulator includes a housing, a metering spool, a first pressure chamber at a reference pressure to which one end of the metering spool is exposed, a spring within the first pressure chamber acting against the one end of the metering spool, a second press...
02/20/2007
7178551Valve
A valve for fitting to a container, in particular a bottle, in which a pressure has accrued, comprising a valve housing in which at least one valve seat is provided. A valve seat, independent of the bottle pressure is located between a piston and the bottle contents...
02/20/2007
7157168Regulator
A back pressure chamber is defined at an end of a rod for acting in a direction to cancel out a pressure applied to a valve head, and an aspirator chamber is defined closely to the valve head for developing a pressure lower than a secondary pressure due to a suction...
01/02/2007
7150299Assembly and method for containing, receiving and storing fluids and for dispensing gas from a fluid control and gas delivery assembly having an integrated fluid flow restrictor
A fluid control and gas delivery assembly and method for containing, receiving and storing hazardous fluids and for dispensing gas comprising a container, a fluid fill path, a gas dispensing path, a first shut-off valve, a pressure reducer, a fluid flow restrictor, ...
12/19/2006
7140393Non-contact shuttle valve for flow diversion in high pressure systems
A valve for redirecting flow in a supercritical fluid or other high pressure processing system is disclosed. In high pressure supercritical carbon dioxide (SCCO2) equipment for semiconductor wafer processing, a major hurtle in providing clean equipment and clean waf...
11/28/2006
7140387Regulated gas supply system
A regulated gas supply system having a body defining a pressurized gas reservoir connected to a high-pressure regulator that regulates the high pressure gas from the gas reservoir to disperse the gas at a desired pressure. The gas regulating assembly includes a pist...
11/28/2006
7086414Gas bottle assembly
A gas bottle assembly includes a container for containing a pressurized gas, and an operating head, the operating head including a valve member which in the absence of any demand for the gas, is positioned close to a valve seat such as to permit only a minimal flow ...
08/08/2006
7077158Velocity head compensated valve assembly
A valve assembly includes a valve body configured to define a chamber forming a primary flowpath between an inlet port and a discharge port, an isolator disposed inside said chamber, and a poppet having a bore. The isolator is defined by a skirt and a stem, with the...
07/18/2006
7073490Gas feeding system for an internal combustion engine, having an improved pressure reducing valve
In a gas-supply system for internal-combustion engines, a pressure-reducing valve is set between the reservoir of the gas and a distribution manifold or rail that feeds the gas to a series of electromagnetically controlled injectors associated to the various cylinde...
07/11/2006
7032611Pressure regulator and method of use
A pressure regulating device for connecting a pressure source to an inflatable object comprises: a hollow casing; a valve system positioned inside the hollow casing; a fluid inlet connected to the valve system; a fluid outlet; a fluid conduit positioned inside the h...
04/25/2006
7013916Sub-atmospheric gas delivery method and apparatus
An apparatus for containing and delivering hazardous gases at sub-atmospheric pressure from a pressurized container is provided which includes a valve body in sealed communication with an outlet orifice of the pressurized container. The outlet orifice of the pressur...
03/21/2006
7004186Surge relief apparatus for a valve
A valve apparatus that includes surge relief includes a valve housing having an inlet port, an outlet port, and a poppet seat between the inlet port and the outlet port. The valve also includes a first moveable poppet piece having a closed position against the poppe...
02/28/2006
6986338Fluid flow pressure regulator
A fuel vapor pressure regulator by which the input pressure of an input fluid is regulated by the opening and closing of a valve unit controlled by a piston pressure sensor, the operation of which is, in turn, controlled by a movement of a preset bias, the output pr...
01/17/2006
6932108Pressure reducer
A pressure reducer has a housing with inlet and outlet sockets, a partition between said inlet and outlet sockets, and an accommodation socket. The partition defines an aperture aligned with the accommodation socket. A pressure reducer insert is inserted into the ac...
08/23/2005
6929026Sanitary liquid pressure regulator
A pressure building regulator having a pressure receiving means in liquid communication with the liquid outlet passage, upon which a liquid in the liquid outlet passage can exert a balancing force, and a means for communicating the balancing force to the diaphragm o...
08/16/2005
6923197Pressure regulator with tamper-proof safety feature
A pressure regulating system having a tamper-proof safety feature. A pair of seats are mounted to an annular pipe. A first bleed pipe, with a fixed restriction, extends from an inlet conduit to a first chamber. The first chamber is separated from a second chamber by...
08/02/2005
6874521High to low gas flow regulator
A diaphragm operated regulator valve usable, e.g., for maintaining a preset gas pressure in a potable storage container, provides particularly effective at gas flow regulation as well as pressure regulation. The use of the word “fluid” as used herein can encompa...
04/05/2005
6854480Regulated gas supply system
A regulated gas supply system having a body defining a pressurized gas reservoir connected to a high-pressure regulator that regulates the high pressure gas from the gas reservoir to disperse the gas at a desired pressure. The regulating assembly includes a piston c...
02/15/2005
6843266Regulator with erosion resistant seal assemblies
The regulator connects to a high pressure fluid supply and regulates the pressure to a downstream apparatus. If an over-pressure occurs, it is vented to atmosphere. An elongate control stem engages a supply seal assembly and a vent seal assembly and moves axially wi...
01/18/2005
6840269Pressure reducer for a fluid sampling device
The present invention generally relates to a pressure reducer that can regulate a fluid sample flow and decrease pressure automatically without adding any extra media. More particularly the pressure reducer has a casing having a sample inlet for receiving the fluid ...
01/11/2005
6814099Flow regulator for water pump
A flow regulator for a water pump, comprising a valve body, a left piston, a right piston, a connecting rod, a spring, and a conduit. The valve body is roughly shaped like a cross, having a passageway in a vertical direction and a left tube and a right tube in a hor...
11/09/2004
6796326Gas pressure regulator
A gas pressure regulator shall be created that shows reproducible features even at minimum through flow values, and at the same time allows keeping its lock up characteristic. In addition, gas burners operated at a large modulating range shall allow ignition as well...
09/28/2004
6789559Pressure regulator
A fluid pressure regulator is provided having a housing with an inlet and outlet for fluid, a valve located movably inside the housing and provided with a fluid transport member to allow passage of fluid from the inlet to the outlet. The regulator also has a pressur...
09/14/2004
6722388Multiple pressure regulator
A pressure regulator having a valve cartridge adapted to be removably held within its housing, said cartridge having a frame carrying and positioning a valve seat, a valve member, a valve stem, and a spring. The valve cartridge ensures correct spacing between the va...
04/20/2004
6629544Gas pressure-reducing valve
A gas pressure-reducing valve includes a pressure-reducing chamber for generating a gas pressure that acts on one surface of a diaphragm, a valve body that can sit on a valve seat having in its central part a valve hole communicating with the pressure-red...
10/07/2003
6578601Liquid pressure regulator
A liquid pressure regulator assembly includes an inlet portion through which the liquid enters the regulator assembly. The inlet portion includes a piston member which is engageable with a plunger portion. A housing portion encloses the plunger portion an...
06/17/2003
6568418Precision regulator
The precision regulator connects to a high pressure fluid source and regulates the pressure to a downstream apparatus. If an overpressure occurs, it can be vented to atmosphere. An elongate control stem engages a supply seal assembly and a vent seal assem...
05/27/2003
6564826Flow regulator for water pump
A flow regulator for a water pump, comprising a valve body, a piston block, a spring, a connecting pipe, and a rod. The valve body is roughly shaped like a cross, having a passageway in a vertical direction and a first tube and a second tube in a horizont...
05/20/2003
6488046Pressure reducer for compressed gases
Pressure reducer for compressed gases, comprising at least one regulation stage constituted by a chamber divided by a first membrane (25) into two chambers (23, 24), one of which said chambers (24) is maintained at a reference pressure and the other (23) ...
12/03/2002
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