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| Number | Title | Issue Date |
| 8082941 | Reverse action flow activated shut-off valve A flow activated valve includes an outer body and a piston disposed in an inner cavity of the outer body. The flow activated valve also includes one or more fluid passage exits in the outer body and one or more piston fluid passages in the piston. The one or more fl... | 12/27/2011 |
| 7874309 | Compressor The invention relates to a compressor, particularly for air conditioners in motor vehicles, comprising a safety device for limiting high pressure, whereby the safety device is hermetically sealed until first responding, after which it slowly reduces the system press... | 01/25/2011 |
| 7798165 | Rupture control system In various embodiments, the present invention includes a rupture control system comprising an inner hose, an outer hose, and a valve that is actuated by fluid leaking from the inner hose. The inner hose and the outer hose define a containment passageway therebetween... | 09/21/2010 |
| 7703472 | Module isolation devices A gas flow isolation device includes a gas flow isolation valve movable from an opened condition to a closed condition. The module isolation valve in one embodiment includes a rupture disk in flow communication with a flow of gas when the module isolation valve is i... | 04/27/2010 |
| 7516751 | Wet barrel fire hydrant flow preventer The present invention provides a fluid flow prevention apparatus for a wet barrel fire hydrant which is simple and inexpensive to install and effectively cuts off water flow while reducing water hammer. The fluid flow apparatus includes an in-line or non-hinged valv... | 04/14/2009 |
| 7322558 | Non-refillable valve A non-refillable valve is provided that allows for an initial filling of a container, but prevents subsequent refilling of the container. In one embodiment, the valve includes a valve core having a retaining means for maintaining the valve core in an open or non-sea... | 01/29/2008 |
| 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 flow line and the head. The tubular member has an axial passage there... | 01/15/2008 |
| 7293721 | Check valve assembly for sprinkler head A check valve assembly has a coupling sleeve with a first end for connection to a pop-up or fixed sprinkler head and a second end for connection to a water supply, the coupling sleeve incorporating a valve seat. A disc valve is retained below the valve seat, and a s... | 11/13/2007 |
| 7287727 | Aircraft evacuation slide inflator having valve leakage trap and safety vent An inflatable aircraft evacuation slide system includes a primary valve, a bust disk and a valve leakage trap operatively disposed between the primary valve and the burst disk. The valve leakage trap comprises a small exhaust vent opening into a flow restriction ori... | 10/30/2007 |
| 7281544 | Devices and methods for controlling the release of a substance Valves for controlling the release of a substance, include a housing having an inlet for connection to a source of the substance, an outlet, and a passage extending therebetween. The passage is enclosed by a ceramic disc and means are provided to apply an electrical... | 10/16/2007 |
| 7270140 | Poppet valve assembly A poppet valve assembly is sized and constructed for insertion into the lower portion of a flow control valve used within the opening of a cylinder for storing a compressed gas. When the flow control valve is removed, the normally open poppet valve assembly of the p... | 09/18/2007 |
| 7267136 | Wet barrel fire hydrant flow preventer The present invention provides a fluid flow prevention apparatus for a wet barrel fire hydrant which is simple and inexpensive to install and effectively cuts off water flow while reducing water hammer. The fluid flow apparatus includes an in-line valve member for c... | 09/11/2007 |
| 7234522 | Apparatus and method for drilling a wellbore with casing and cementing the casing in the wellbore A float system for use in cementing a casing in a wellbore. The wellbore is drilled with a drill bit attached to the casing. The drill bit is removed after the wellbore is drilled. The float system is lowered into the casing after the drill bit is removed. The float... | 06/26/2007 |
| 7209806 | Self-contained electronic pressure monitoring and shutdown device The invention is a self-contained process shutdown device that detects abnormal pressures and initiates shutdown by removing the pneumatic or hydraulic pressure needed for a given process or flow to continue. The process' pressure is detected by means of a switch-ga... | 04/24/2007 |
| 7171980 | Springless regulator valve assembly A valve assembly and a regulator for use therein are disclosed. The valve assembly includes a valve poppet having a first end having a first face and a second end having a second face. The first face has a surface area smaller than the surface area of the second fac... | 02/06/2007 |
| 7156119 | Hydrant knock-off combination flow stop and backflow check valve A hydrant knock-off combination flow stop valve and backflow check valve, mountable between water system riser and a wet-type hydrant having a breakaway flange ring. The vertical valve has a bulbous, cylindrical outer wall having an upper flange connecting to a wet-... | 01/02/2007 |
| 7152617 | High pressure release safety valve assembly A safety valve assembly for use with a global manual valve which is installed on a high pressure cylinder or container. The safety valve assembly has a main body that is threaded into the lower bore of the global manual valve. A poppet valve slides into the bore of ... | 12/26/2006 |
| 7150299 | Assembly 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 |
| 7128083 | Wet barrel fire hydrant flow preventer The present invention provides a fluid flow prevention apparatus for a wet barrel fire hydrant which is simple and inexpensive to install and effectively cuts off water flow while reducing water hammer. The fluid flow apparatus includes an in-line valve member for c... | 10/31/2006 |
| 7124770 | Shear mechanism for backpressure relief in a choke valve The present invention relates to a mechanism for preventing damage to the actuator of a hydraulic choke valve in the event of excessive backpressure on the outlet of the choke. The backpressure relief device is applicable to a choke valve which meters flow from a hi... | 10/24/2006 |
| 7111818 | Safety valve A safety valve comprises a pressure receiving hole (20), an actuation chamber (21), a discharging hole (22) and an alloy accommodating chamber (25). An alloy (27) of a low-temperature melting point is accommodated within the alloy ... | 09/26/2006 |
| 7108071 | Automatic tubing filler Methods and apparatus for filling a tubing string as it is lowered into a subterranean hydrocarbon well. In one embodiment, an apparatus to fill a tubular with fluid in a wellbore comprises a housing defining a central bore. An aperture formed in the housing provide... | 09/19/2006 |
| 7066193 | Poppet shear protection apparatus and system A springless shear protection device for use with a valve, the device comprising a poppet, the poppet including a bore. The poppet including first and second openings at distal ends of the poppet. A seat plug is disposed in the poppet bore, the seat plug is moveable... | 06/27/2006 |
| 7048079 | Mud saver valve A three-part sub-assembly comprising a wire line retrievable spear. The spear having two fluid chambers. A diverter valve having a truncated, inverted cone valve seat is preferably threaded into the interior of the spear. A diverter valve stem, having back-to-back c... | 05/23/2006 |
| 7025083 | Quick closing shut-off valve A quick closing shut-off valve includes an inlet, an outlet and a passage there between. A closing element blocks the passage when in the closed position. The closing element is interconnected to a piston via a pull rod. The piston is positioned within a working cha... | 04/11/2006 |
| 7021605 | Regulator valve A control valve (1) comprises a housing (2) manufactured by a pressure die casting process, whose housing edges of upper semicircular bore hole are located exactly vertically above housing edges of lower semicircular bore hole and for this reason, the ... | 04/04/2006 |
| 7017671 | Mud saver valve A mud saver valve being operable in conjunction with a top drive unit to retain mud in the top drive unit when a tubular is disconnected therefrom. The valve utilizes a spring-loaded piston to control the flow of mud or other fluid onto the work area and environment... | 03/28/2006 |
| 7013916 | Sub-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 |
| 7007456 | Dual chamber pump and method Disclosed is a pneumatically powered high-pressure and lightweight fluid pump. The pump is useful for pumping fuel for liquid rocket engines and for pumping water, such as for fire suppression. During operation of the pump, liquid is drained from a tank into a pump ... | 03/07/2006 |
| 7004189 | Lubrication cutoff device A connector in a network of lubrication pipes is provided with a valve that automatically closes off the connector whenever one of the pipes is withdrawn following an incident. Lubricant leaks are thus avoided. The valve plug is cylindrical-conical and it is fitted ... | 02/28/2006 |
| 7004188 | Anti-rupture device The invention relates to a fluid conduit piece (8) for passing therethrough a spontaneously exothermic working fluid such as a synthetic polymer, a cellulose derivative and a solution on the basis of cellulose, water and amino oxide, said fluid conduit piece ... | 02/28/2006 |
| 6994102 | Pressure regulating valve A pressure regulating valve which is comprised of a valve body being comprised of a cylinder, a spool slidably disposed in the cylinder with a clearance, the spool and the cylinder defining a pressure chamber and a space portion, and an urging member which urges the... | 02/07/2006 |
| 6802332 | Shear valve A shear valve for use in a fuel delivery system includes a valve body wherein a first end is adapted to be connected to a fuel inlet, and a second oppositely-disposed end is adapted to be connected to a fuel outlet. The valve body is provided with a readily frangibl... | 10/12/2004 |
| 6799597 | Pressure control system which detects and abates overpressure and underpressure conditions in a pressurized fluid Apparatus for detecting and abating an overpressure condition and an underpressure condition in a pressurized fluid. A collapsible buckling pin is supported between a valve assembly and a control assembly. The control assembly comprises a retractable support member ... | 10/05/2004 |
| 6799596 | Breakaway safety shut-off valve A breakaway safety shut-off valve including a valve housing and a detachable end portion connected thereto by a region of reduced strength. The housing includes an axial passage and the detachable portion includes an annular shoulder positioned adjacent the region o... | 10/05/2004 |
| 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 zone (16) around the flow passage (20) ... | 09/14/2004 |
| 6732808 | Fire-extinguishing device This invention relates to a fire extinguishing device, with at least one supply line (4) that is dry with the device in an idle state, through which at least one extinguishing nozzle (1) is connected with an extinguishing fluid supply unit, which fills... | 05/11/2004 |
| 6698714 | Fluid safety discharge system A fluid safety discharge system for a relief valve having an inlet and an outlet includes a bushing frictionally engaging the relief valve outlet. The relief valve outlet is internally threaded for engaging with a threaded device, such as a discharge line... | 03/02/2004 |
| 6640824 | Mud saver kelly valve A mud saver valve is described that features an outer housing that retains upper and lower valve pistons therewithin. The pistons coordinate to provide a check valve so that fluid, such as drilling mud, is permitted to flow in one direction while under pu... | 11/04/2003 |
| 6431197 | Regulator valve for escape slide A system for controlling with safety the transfer or control of high pressure fluids from a container for use as to an inflatable escape slide. The pressurized container houses valve mechanisms such as a first and second valve mechanism, with the first va... | 08/13/2002 |
