Matches 151 - 200 out of 448 < 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
4407548 Air service brake exhaust control system  
An air brake system augments the braking force available while parking without interfering with the operation of the parking brakes. The brake system includes a service brake, a pilot check valve...
4398393 Steam turbine control apparatus  
Control apparatus is disclosed for limiting overspeed in a steam turbine following a sudden loss in load. The apparatus includes at least one valve disposed in the steam conduit interconnecting...
4378931 Valve and actuator therefor  
A valve and particularly a safety valve for use in controlling flow from a well in which an external motor is utilized to shift the actuator of a valve such as a ball valve. The reciprocating rod...
4368871 Lubricator valve apparatus  
A lubricator valve apparatus adapted for use when running wireline tools into an offshore well during a production test of the well. The valve includes a valve body having a central flow passage...
4366835 Electromagnetic flow control valve  
A flow control valve for mounting on the intake manifold of an internal combustion engine for controlling a by-pass passage supplying air to the intake manifold of the engine by operating a...
4346733 Control valve  
A control valve that can be used as a pilot-assisted pressure relief valve or as a sequence valve, which is substantially insensitive to system back pressure. The valve comprises a valve body 10...
4323086 Pressure responsive flow control apparatus for breathing system  
Pressure responsive flow control apparatus for connection between a source of emergency breathing gas and a hood adapted to fit about a wearer's head for receiving the breathing gas at a controlled...
4314582 Combined pressure-regulator and manual shut-off valve  
A combined pressure-regulator and manual shut-off valve is described wherein the valve may be either manually shut-off or made operative to maintain a substantially constant outlet pressure under...
4312379 Pressure actuated multiway valve  
A hydraulic motor drives the cooling fan of an internal combustion engine. Fluid flow from a fixed displacement pump is directed through a pilot-operated pressure-compensated control valve to the...
4308890 Electromagnetic valve for fluid flow control  
A fuel injector valve for use in an internal combustion engine has a spherical valve member which is movable to be biased onto a valve seat by pressure differential between upstream and downstream...
4305566 Fluid control valve  
A normally open, two stage solenoid actuated flow control valve having a pressure relief function, in which a poppet assembly comprising a spring biased poppet, a range spring and a spring...
4303088 Pneumatic valve and regulator assembly  
A normally closed pneumatic valve and regulator assembly having regulator and vent valve spools is actuated by an operator pushbutton to automatically regulate pressure of a fluid provided from a...
4301831 Pressure regulating valve with differential pressure response  
Valve apparatus including a regulating valve controlling fluid flow through a duct and positionable to produce a regulated downstream pressure from a normally relatively higher upstream pressure. A...
4294214 Engine combustion control system  
The system comprises a zirconium sensor interposed in the exhaust conduit of a gas-fueled engine for sensing both oxygen content and temperature of the exhaust gases, and for emitting electrical...
4287909 Valve for developing variable output pressure  
A valve is disclosed which receives a fluid such as gas at an input port and varies the fluid pressure at the output port in response to an electrical control signal. In one embodiment, a...
4287906 Control valve  
A multi-function valve device for controlling the operation of a pneumatically-driven motor. A spring-biased linkage couples a cam-operated push pin to a valve spool assembly. The valve spool...
4284102 Combination stop and pressure reducing valve  
For purposes of the stop of flow of water and the reduction of excess pressure in potable or sanitary water supply pipe lines, a Combination Stop and Pressure Reducing valve having one bonnet only....
4282896 Pilot operated check valve  
A pilot operated check valve for high pressure service utilizing an O-ring is disclosed, wherein a poppet valve having a seating surface for engagement with a valve seat is provided on its front...
4265270 Remote-controlled pressure regulator  
A remote-controlled pressure regulator comprises a stepping motor, which is operatively connected to a tiltable arm engaging a connecting rod, so as to adjust loading of a pressure-regulating unit.
4254796 Gas regulator valve with step opening characteristic  
There is disclosed a fast-resetting, step-opening gas regulator valve of the diaphragm pressure controlled operation which has an internal bleed cavity and a bleed passageway communicating through...
4252094 Anti-syphon valve unit for marine fuel supplies apparatus  
A marine propulsion apparatus includes an external combustion engine having a fuel pump connected by an electrically operated anti-syphon valve unit to a storage tank. The electrically operated...
4252146 Bypass valve assembly and system  
A valve assembly comprises a valve body having a hollow and a valve element longitudinally movable between first and second positions therein. The valve assembly has at least one inlet and at least...
4249565 Timed water shut off system  
A sensing valve is provided in a water supply pipe upstream of a solenoid-closed valve. A sensing switch coupled to the sensing valve is controlled in position by such valve. A normally open timer...
4237923 Solenoid non return valve  
A solenoid valve comprising a housing having opposed inlet and outlet ports which communicate via a passage containing a poppet member movable in response to energization of a coil is disclosed. A...
4231393 Arrangement in or relating to a valve  
The present invention relates to an arrangement in or relating to a valve comprising a housing having an inlet and an outlet whose interconnection is closable by means of a differential piston...
4228777 Fuel control  
An adjustable bellows mechanism in a fuel control apparatus for balancing the internal forces of a valve arrangement to establish a fuel flow from the control apparatus to an engine corresponding...
4223692 Recreational vehicle safety system  
A recreational vehicle safety system includes two independently operable automatic shutoff valve assemblies. One valve assembly is attached directly to the recreational vehicle's appliance...
4214606 Subsurface safety valve  
A subsurface safety valve assembly for connection in a well pipe, including a valve member disposed in a valve body having a bore or passageway therethrough, a pair of spaced apart and oppositely...
4214605 Actuator for wireline blowout preventer  
Disclosed is an hydraulic actuator for a wireline blowout preventer. The actuator uses well pressure to effect closure of the blowout preventer and hydraulic control fluid to open the blowout...
4210168 Pressure-responsive valve unit for a fluid container  
A pressure-responsive valve unit is received in the cavity of a valve assembly housing, the inner end of the cavity being connected with a fluid container. The valve unit includes a main body...
4188972 Gas valve assembly  
A gas valve assembly has a main valve connected between the inlet and outlet and controlled by a diaphragm actuator. A two position control valve connects the upper side of the diaphragm to either...
4188971 Fluid cutout valve  
A valve disposed in a fluid system for cutting off the flow of fluid from a ource of that fluid to a fluid-using environment upon the occurrence of either an excess or unduly high fluid flow rate...
4178961 Lung-controlled membrane valve for compressed gas respirators  
A lung-controlled valve for compressed gas respirators comprises a valve housing having a diaphragm chamber with a diaphragm extending across the chamber and being displaceable backwardly and...
4176679 Check valve  
A check valve is disclosed which uses a valve body having a bore with a first section smaller than a second section, an inlet communicating with the first section to receive flowing fluid, a...
4173233 Pilot valve  
There is disclosed a pilot valve which controls the flow of a control fluid to and from a fluid-operated actuator, and which comprises an inlet to admit the control fluid to a chamber thereof, a...
4172466 Self-actuated pilot-controlled safety valve  
There is disclosed a self-actuated pilot-controlled pressure-responsive valve for fluid pressure systems wherein the main valve is arranged to be seated by the fluid pressure in the system and a...
4150737 Inching valve  
In a control apparatus, for a vehicle having a transmission and brake means wherein hydraulic passage means connects a source of fluid pressure to a fluid actuated clutch, an improved inching valve...
4129142 Safety device for a relief valve with a controlled disk  
A safety device especially for use with a relief valve having a disk which is controlled by a pilot valve. The safety device is connected between the pilot valve and the relief valve and provides...
4100933 Fire protection water supply valve  
A fire protection water supply valve for discharging a high pressure water source at a predetermined lower pressure which includes a manual override to close a control valve in a shut-off and to...
4093001 Excess flow valve  
An excess flow valve for use in a conduit as a precaution to quickly shut off the flow of a fluid in said conduit in the event of a rupture in the conduit. A valve disc is connected to a linkage...
4083379 Pressure medium regulating device  
Pressure medium regulating device in which a fluid cell is positioned between the inlet and outlet of the device. The inlet is connected to a source of pressure medium and the outlet to a motor or...
4071042 Electromagnetic actuator, notably for hydraulic servo-control valve  
Electromagnetic actuator, especially for actuating a hydraulic servo-control valve, which comprises a magnetic shell constituting a body of revolution and a concentric armature-forming permanent...
4060370 Manifold gas valve with stepped flow operation  
A manifold gas valve for controlling gas flow to a burner has a diaphragm operated main valve, an electrically operated control valve, and means to delay the application of gas pressure to the main...
4043350 Emergency gas shut-off unit mounted on gas pressure adjusting unit  
The emergency shut-off unit for escaping gas is comprised of a cylinder and a valve piston that runs through the cylinder, and the cylinder is screwed to a thread hole formed on the bottom wall on...
4043357 Filter fitting for heating installations  
A filler fitting for heating installations has a housing with an inlet, an outlet and between them a pressure-reducer having a valve mechanism which includes a valve stem spring loaded to an open...
4040675 Anti-theft vehicle brake-supervising device  
A vehicle anti-theft device which maintains the braking function of the braking fluid by preventing reverse flow thereof from the wheel cylinder back to the master cylinder until, following an...
4037880 Emergency brake valve device for propogating an emergency brake application  
An emergency brake valve device, especially for rapid transit railway vehicles, in which a vent valve for propogating transmission of an emergency rate reduction of brake pipe pressure is opened by...
4027694 Control valve  
A fluid control valve of the pilot operated kind has a main valve comprising a valve seat and valve member. The valve member is moved by piston action in response to fluid pressure in a control...
4017221 Combined unloading and relief valve for pump unloading circuit  
A hydraulic fluid circuit comprises an engine-driven pump for communicating pressurized fluid through a combined unloading and relief valve and to an implement control circuit of a construction...
4009861 Step opening gas valve  
A combination gas valve in which means associated with the main diaphragm valve is provided for opening the valve in a stepped manner. The combination valve includes an electromagnetic operator...
Matches 151 - 200 out of 448 < 1 2 3 4 5 6 7 8 9 >