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A forehead support apparatus for resting a standing users forehead against a wall above a bathroom commode or urinal or beneath a showerhead.
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| Number | Title | Issue Date |
| 7438087 | Overpressure rotary valve assembly with locking pin and collapsible member An overpressure rotary valve assembly for detecting and abating an overpressure condition. A valve member is configured for movement between a closed position and an open position. A locking pin contactingly retains the valve member in a selected one of the open and... | 10/21/2008 |
| 7387659 | Pneumatically operated automatic shutoff circuit for controlling the generation of gas An automatic shut off circuit for controlling the flow of a gas through a gas separation system is disclosed. The gas separation system includes a gas separation module for separating nitrogen from air, and a non-electric automatic shut off circuit for controlling t... | 06/17/2008 |
| 7370671 | Valve activation assembly which mechanically collapses a collapsible member in response to both overpressure and underpressure conditions A valve activation assembly which mechanically collapses a collapsible member, such as a buckling pin, in response to both overpressure and underpressure conditions of a pressurized fluid. A retention member retains the valve member in a selected position with respe... | 05/13/2008 |
| 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 |
| 6976504 | Selectable detent relief valve A selectable detent relief valve of this invention is used to operate a hydraulic detent mechanism on a manually operated spool valve. This design has three modes of operation, no-detent, continuous detent and kick-out detent. The no-detent position allows flow to p... | 12/20/2005 |
| 6923212 | Fail safe apparatus for a direct-drive servovalve Provided is a servovalve system having a fail safe apparatus adapted for switching the servovalve system between an operating position and a fail safe position. The servovalve system comprises a housing having a housing bore and a housing chamber, a spool moveably d... | 08/02/2005 |
| 6915730 | Spool-type hydraulic directional control valve having reduced cavitation A spool-type hydraulic directional control valve having improvements to reduce cavitation when the spool is in the float position. The flow area of a first passageway on the valve spool is appropriately sized to reduce the flow hydraulic fluid flow from the head end... | 07/12/2005 |
| 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 |
| 6666230 | Pressure relief system with trigger activated valve A pressure relief system is provided to detect and abate an overpressure condition in a pressurized fluid. An actuator assembly establishes an overpressure path for the pressurized fluid when a pressure of the pressurized fluid reaches a predetermined lev... | 12/23/2003 |
| 6397877 | Blowdown manifold evacuator for nuclear power plants A blowdown manifold for a nuclear power plant includes a main conduit section, at least one coolant exhaust conduit, and at least one fluidic device. The main conduit section is connected to a pressure relief system in the nuclear power plant. The coolant... | 06/04/2002 |
| 6167909 | Corrosion and contaminant resistant slide valve A slide valve containing a ceramic apertured slide block slidably supported upon a pair of ceramic shear seals so that the slide can reciprocate between an operative and an inoperative position. A roof block also formed of a ceramic material is mounted ov... | 01/02/2001 |
| 6155284 | Buckling pin latch actuated safety relief valve The invention provides a method for using sacrificial buckling pin technology for a reliable actuated safety relief valve. The buckling pin fails at a predicted system pressure through transfer of force exerted by the system pressure on a sensing piston o... | 12/05/2000 |
| 6148788 | Valve for liquids A valve for liquids including a valve housing (10) and a valve body (13) which is guided in the housing, and at least one releasable catch (16) which engages the valve body and holds the valve body in an open position in the valve housing until liquid sta... | 11/21/2000 |
| 6109162 | Control valve system A fluid control valve system for controlling the flow of hydraulic fluid supplied to and discharged out of an actuator having first and second actuator ports, comprising: a valve housing having a pressure sensing chamber for sensing the pressure of the hy... | 08/29/2000 |
| 6102060 | Detachable locking device for a control valve and method A valve device for use downhole is described as comprising a body member and a channel through the body member through which fluid can flow. A moveable member is mounted within the body member, and comprises an obturating member for selectively obturating... | 08/15/2000 |
| 6047732 | Directional control valve A directional control valve has snap-locking device for retaining the slide of the directional control valve in at least one switching position. The snap-locking device has a snap-locking part with a snap-locking piston that allows an engagement part to e... | 04/11/2000 |
| 6047731 | Pressure fitting, in particular a pressure relief and safety valve The invention relates to a pressure fitting (1) having a flow channel (42), a valve cone (5), a sliding element (43), and a locking device (12). The sliding element (43) is disposed displaceably along a main axis (41) of the pressure fitting (1). The valv... | 04/11/2000 |
| 5878955 | Irrigation device having a two-step valve assembly An improved flow control irrigation device automatically stops the flow of water to an area when that area has received a predetermined quantity of water and then redirects the water to another area. The device includes a chamber, a carriage assembly, and... | 03/09/1999 |
| 5836337 | Large diameter low pressure relief valve A large diameter low pressure collapsible pin relief valve adapted to be connected with a vessel containing fluid under low working pressure is formed by a normally closed valve initially released to open by excess fluid pressure in the vessel applied thr... | 11/17/1998 |
| 5829478 | Condition sensing hydromechanical fuze A Condition Sensing Hydromechanical Fuze to sense hydraulic line flow for velocity, volume, direction and flow measurement. The fuze is self adjusting with temperature changes and safely enables hydraulic circuit segregation and cross porting to maintain ... | 11/03/1998 |
| 5683071 | Apparatus for controlling selectively engageable detents in a pilot controller A pilot hydraulic system controller including a pilot controller valve for controlling the flow of hydraulic fluid to actuate a primary hydraulic system valve, a pilot controller lockout valve, and a detent control circuit for selectively energizing a det... | 11/04/1997 |
| 5325895 | Device for filling and closing pressurized-steam containers Rotatably engaged to the filter (4, 104) of a pressurized-steam container (5, 105) is a closing member (2, 102) provided at the upper part thereof with an operating cap (6, 108). Through 180° rotations of the closing member (2, 102) the fluid communicati... | 07/05/1994 |
| 5240034 | Safety and automatic stop device, in particular for gas expansion stations A safety and automatic stop device for interrupting the flow of gaseous fluid along a main duct by tripping a safety valve member including a closing actuator for closing the safety valve member and an opening actuator for opening the safety valve member.... | 08/31/1993 |
| 5176163 | Flow-controlled irrigation system A flow controlled irrigation system which automatically stops the flow of water to an area when that area has received a predetermined quantity of water and then redirects the water to another area is disclosed. The system includes an upwardly extending g... | 01/05/1993 |
| 5158104 | Pilot-operated spill valve assembly On a liquid cargo tank of a barge, a pressure responsive pilot valve operates through a combination of levers to unlatch a main valve clamp arm. One lever is a latch arm having a first position engaging and retaining a latch stud mounted on the clamp arm,... | 10/27/1992 |
| 5000207 | Apparatus suitable for processing semiconductor slices Apparatus suitable for processing semiconductor slices, comprises a tank (1) for receiving a jig carrying semiconductor slices, a first supply line (2) for supplying a processing liquid to the tank (1), a supply valve (3) for controlling liquid supply thr... | 03/19/1991 |
| 4936346 | Detent mechanism for a control valve A control valve includes a main valve spool movable to a plurality of positions. A detent mechanism with a plurality of operational modes operates to releasably hold the main valve spool in displaced positions. An operator-controlled selector mechanism is... | 06/26/1990 |
| 4913190 | Detent mechanism for a control valve A control valve includes a main valve spool movable to a plurality of positions. A detent mechanism with a plurality of operational modes operates to releasably hold the main valve spool in displaced positions. An operator-controlled selector mechanism is... | 04/03/1990 |
| 4862919 | Hydraulic control system for a multi-position valve A hydraulic system includes a multi-position valve which controls the flow of system fluid pressure to various work stations. The multi-position valve is biased by a centering spring to a neutral position from which it can be shifted to a selected working... | 09/05/1989 |
| 4813492 | Low pressure shut off device contained within a pneumatic tool The invention provides a low pressure shut off device contained within a pneumatic tool that senses the air pressure of an air stream supplied to a pneumatic motor and shuts off the air flow when the pressure falls below a predetermined level set to maint... | 03/21/1989 |
| 4651972 | Rotary flow control apparatus A flow control apparatus for selectively directing fluid from a fluid supply line to a number of outlet lines includes an outer member having an outer wall, a throughbore forming an annular inner wall and a plurality of spaced, discharge bores formed ther... | 03/24/1987 |
| 4625762 | Auto-fill flow valve An auto-fill flow valve for use in providing valving action in a conduit, the valve having a releasable locking mechanism which prevents the valving element from moving to seat against the valve seat until the locking mechanism is released. Also provided ... | 12/02/1986 |
| 4579315 | Valve for fire suppression The invention contemplates a quick-opening valve for release of pressurized gas to suppress a hydrocarbon or the like fire and/or explosion. A piston or poppet-valve member is retained by mechanical-latch mechanism in its readiness condition, normally clo... | 04/01/1986 |
| 4538307 | Flood level sensor for fluid filling systems An improved flood level sensor has an upstanding, vented tube extending above and outside a receptacle while maintaining fluid communication with an enclosed rim of the receptacle. A partial vacuum is communicated to an orifice which is located within the... | 09/03/1985 |
| 4523602 | Pressure controller Disclosed is a pressure controller for sensing changes in a service pressure and controlling a control pressure in response to such changes. The pressure controller includes a valve body having a control inlet and a bleed outlet with a passage therebetwee... | 06/18/1985 |
| 4520845 | Hydraulic distributors Distributor comprising a body provided at least with one pressurized fluid inlet port (P), one return port for the fluid to a tank (T), two connecting ports (A, B) to a hydraulic apparatus or component, and a slide valve adapted to slide in a bore of the ... | 06/04/1985 |
| 4513653 | Automatic hydraulic reversing valve for a double-action working cylinder This invention relates to an automatic hydraulic reversing valve for a double-action working cylinder. The purpose of the invention is to employ valves of this type without the requirement of an expensive servo-control mechanism, but nevertheless having a... | 04/30/1985 |
| 4509407 | Hydraulic control valve with maintenance-facilitating feature The control valve for an hydraulic actuator is provided with a particular operating state for venting the hydraulic system, which state is attainable positively whenever the hydraulic pressure is inadequate, e.g., in the case of venting or presence of air... | 04/09/1985 |
| 4501451 | Vehicle braking system A selector valve for a vehicle braking system in which brakes mounted on opposite sides of the vehicle can be operated selectively either together or independently, comprises an operating lever (9) for displacing a valve spool (2) to control communication... | 02/26/1985 |
| 4498203 | Flood preventer for fluid filling systems A flood preventer has a pneumatically operable lockout mechanism to disable a valve actuator and prevent its repeated operation when fluid in a receptacle has reached an excess level. In the preferred embodiments the flood preventer has a latch that is re... | 02/12/1985 |
