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Match Document Document Title
7562668 Excess flow valves  
An excess flow valve (EFV) for installation in a service line of natural gas distribution system serving an existing structure. The EFV has a cylindrical housing having a first length and a second...
7533689 Excess flow control valve  
A poppet mounted concentrically on a barrel for axial travel downstream relative thereto from an open to closed position, the poppet biased by a coil sprint to its open position.
7455071 Hydraulic control valve for drip hoses  
The object of this invention is to provide a hydraulic control valve for drip hoses, which controls a flow of water according to a water pressure, thus keeping a pressure of Water fed to a drip...
7444995 Fuel line check valve system for relief of diurnal pressure  
Prior art fuel line check valves remain closed after engine off and cool down. Diurnal heating and the resultant pressure increase in the fuel line causes fuel vapor emissions through small...
7431050 Liquid delivery device  
A fluid delivery device is provided which comprises a microchannel device for cutting out a certain amount of a sample from a micorochannel by controlling a valve opening. The fluid delivery device...
7398795 Excess flow valve  
An excess flow valve includes: a valve that opens and closes a flow path; a solenoid that keeps the valve in an opened state; a pressure detector detecting the primary-side pressure of the valve;...
7377286 Drain valve  
A drain valve having a temperature responsive member that holds the drain valve in a water conserving mode when water is above freezing yet allows the drain valve to drain when the water is near...
7318556 Water line safety valve  
A safety valve for a lawn sprinkler system having at least one subterranean flow line and at least one head for spraying irrigation water. The valve includes a tubular member connected between the...
7296594 Combination check valve and neutral valve assembly for use in a hydraulic component  
A combination neutral valve and check valve assembly is provided for use in connection with a closed hydraulic circuit and a sump such as in a hydrostatic transmission. A cage and check poppet are...
7246635 Automatic flow rate control valve  
An automatic flow rate control valve, includes a tubular body, defining a flow path between inlet apertures having a gradually variable cross-sectional area and a fluid outlet at one end; a flow...
7246607 Three position fuel line check valve for relief of diurnal pressure  
Prior art fuel line check valves remain closed after engine off and cool down. Diurnal heating and the resultant pressure increase in the fuel line causes fuel vapor emissions through small...
7225829 Flow-control valve assembly  
A first expression of a flow-control valve assembly includes a valve body and a resilient flow control positioned in the valve body. The valve body has a valve seat including a radially-inner valve...
7219690 Flow control valve  
A two-stage fluid pressure control valve has five components. An inlet socket with separate fluid flow orifices sealably engages an outlet socket which also has separate fluid flow orifices. A...
7219688 Fluid control valve  
A fluid flow control valve includes a housing having a fluid inlet and a fluid outlet, which define a flowpath therebetween. Within the housing is a chamber located in the flowpath between the...
7207349 Hydraulic flow pressure switch  
A pressure switch or valve for a hydraulic circuit that responds primarily to fluid flow as opposed to relying strictly on a pressure gradient across the valve. A T-shaped valve has a stem portion...
7178544 Combination shut-off and resetable excess flow valve  
A valve operable with an associated fluid delivery system having fluid flow therethrough includes a housing, a valve body and a resetable excess flow valve. The housing has a first passage and the...
7140386 Surge suppression and safety cut-off valve  
A surge suppressor and safety shut-off valve is described which automatically shuts off fluid flow in response to a sufficient pressure differential across the valve. The shut-off valve comprises a...
7033133 Air turbine starter having a low differential check valve  
An air turbine starter is provided that includes a check valve assembly. The check valve assembly comprises a valve body, a valve seat and a valve element. The valve body includes an inlet port, an...
7032620 Valves and methods for manufacturing the valves  
Valves and methods for manufacturing the valves are disclosed. The valves are formed from a plurality of flexible polymer layers. A radio frequency bonding process, or the like, is utilized to form...
7004193 Valve arrangement and traffic calming device incorporating such an arrangement  
A reactive speed hump ( 2 ) includes a fluid flow control valve assembly ( 4 ). A first valve ( 18, 20, 21 ) is naturally open and a second valve ( 10, 14, 15, 16, 17 ), naturally closed....
6953052 Fuel system shut-off valve  
A fuel system shut-off valve includes a valve body bounding a fuel space, the valve body having an inlet opening and an outlet opening communicating with the fuel space. A piston assembly in the...
6948519 Device for regulating the flow of gas toward user equipment  
A device for regulating a flow of gas toward user equipment, which comprises a first regulation stage and a second regulation stage arranged downstream in a direction of flow of the gas to be...
6923206 Excess flow valve with magnet  
A number of improved excess flow valves are disclosed wherein pressure drop is optimized through the device to maximize efficiency while minimizing shut-off flow rates. Flow restrictions are...
6920895 Combination surge supression and safety shut-off valve  
A surge suppressor and safety shut-off valve is described which automatically shuts off fluid flow in response to a sufficient pressure differential across the valve. The shut-off valve comprises a...
6899126 Check valve and valve arrangement comprising such a check valve  
A check valve is mounted in a valve arrangement having a valve member with an annular channel and at least one bore opening into the annular channel. The check valve has a closing element...
6892757 Hydraulic valve  
Hydraulic valve with a valve chest ( 1 ) provided with a substantially cylindrical internal chamber ( 5 ) which may be closed by a valve disc ( 9 ) which with its conical rim ( 9 ′) engages the...
6892756 Gas flow monitoring device  
There is to be created a gas flow monitoring device in which the adjustment/alteration of the reseat flow can also be made without the need of changes to its design, that is to say even after its...
6834666 Apparatus for outputting compressed air in compressor  
The invention provides an apparatus for outputting compressed air in a compressor to a plurality of pneumatic tools at a plurality of pressures. The apparatus includes: an air tank storing...
6830064 Leak control valve  
A leak control valve preventing the damage of the vacuum pump and/or the neighboring instruments even in the case of fluid leak at the vessel. The side wall of the valve poppet closes the channel...
6814101 Excessive flow valve  
A valve which has a valve body having a through-bore to permit the flow of gas through the through-bore, an excessive flow valve disposed within the through-bore of the valve body, the excessive...
6789567 Bi-directional constant flow device  
A bi-directional flow-control device includes a housing defining a flow passage and first and second orifices installed in the passage, each orifice being tubular and having a seat, each seat...
6789561 Excess-flow valve  
An automatically operating valve for use for example in a forecourt fuel pump has a body ( 10 ) defining a flow passage ( 20 ) within which is formed a valve seat ( 22 ), the body having a weakened...
6688323 Gas tank to pressure regulator coupling  
A coupling for connecting a cylinder valve on an LPG tank to the inlet of a pressure regulator for gas consuming equipment comprises a nipple having an upstream end for connection with the cylinder...
6634375 Leak arresting valve  
A flow control valve is disclosed wherein a housing defines a flow chamber with an inlet and an outlet. Disposed within the flow chamber is a poppet assembly comprising an inner poppet and an outer...
6616837 Apparatus for the optimization of the rheological characteristics of viscous fluids  
An apparatus for optimizing the rheological properties of a viscous fluid is particularly designed to reduce the viscosity of the fluid so that it may be more readily transported from a subsurface...
6598616 Tapping point and supply water network comprising such tapping point  
A water tapping point with a hot water inlet; a cold water inlet, a hot water space, a cold water space, a mixing chamber, a hot water outlet from the hot water space and a cold water outlet from...
6516829 Vent valve  
A vent valve for an air braking system of a vehicle comprises an elastomeric valve member ( 11 ) held in relation to a vent ( 17 ) and having a restricted vent passageway. A continuous depending...
6513545 Safety valve with adjustable maximum flow shut off mechanism  
A flow shut off valve for use with a pressurized fluid application and which is actuated in response to a flow rate exceeding a maximum allowable rating, the fluid application including a normally...
6488047 Excess flow valve  
A number of improved excess flow valves are disclosed wherein the flow around a magnet holding portion of the valve body is generally unrestricted to reduce the pressure drop across the valve. The...
6405751 Gas safety valve  
A gas safety valve comprises a main body, a valve seat, a restraining member, and an engaging member. The main body includes an inner threading for threading engagement with the valve seat and the...
6390122 Fluid flow control valve and orifice therefor  
A fluid flow control valve comprises a housing defining a fluid flow passage extending longitudinally therethrough, the housing having opposite ends each defining an opening for flow into and out...
6378542 Flow control device having a lip seal and compressible bypass pads and associated method for operating an appliance water valve  
A water valve assembly includes a valve component having defined therein a central cavity and a bypass channel. The water valve assembly also includes a flow control device positioned in the...
6374854 Device for preventing permanent entrapment  
Device for preventing permanent entrapment that includes a hollow cylindrical body for installation in a suction line. A cylindrical chamber contained in body. A hollow entrappee member with...
6367501 Anti-geyser shut-off valve assembly  
An anti-geyser shut-off valve assembly for a water sprinkler irrigation system. It has a valve housing, a valve member, a coil spring, and a push nut that would be installed on the elongated shaft...
6311712 Fluid flow control valve system  
A method and system for producing constant-flow valves having a plurality of different flow rates includes a plurality of orifices each having a seat defining contoured flow control surfaces, the...
6308730 Gas stream monitor  
A gas stream monitor shall be provided that facilitates the adjustment of the reseat flow. The gas stream monitor consists of a gas-tight casing whose interior is equipped with a seat for a reseat...
6250331 Zero crack-pressure, high-flow valve  
The present invention is directed to a zero crack-pressure, high-flow valve assembly especially suited for use with blood salvage or recovery systems. The valve assembly cooperates with a valve...
6238191 Apparatus for supplying a fuel by means of a fuel supply unit arranged in a housing  
The apparatus for supplying fuel includes a fuel tank and a fuel feed unit in the fuel tank. The fuel feed unit has a main housing, a suction cover arranged in a bottom part of the main housing, a...
6196259 Method and apparatus for regulating and terminating fluid flow  
A fluid valve for controlling flow of a fluid from an upstream region to a downstream region includes a housing having a fluid exit, a fluid entry member having a sidewall, and a shut-off member...
6129112 Flow regulator  
A flow regulator that always guarantees the same rate of flow independently from the admission pressure is provided. This is achieved by a piston (26), which is mounted movably in the direction of...
Matches 1 - 50 out of 448 1 2 3 4 5 6 7 8 9 >