Matches 51 - 100 out of 408 < 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
5692538 Undersea hydraulic coupling member  
An undersea hydraulic coupling member is disclosed having angled flow ports to prevent ingress of debris into the hydraulic lines, and having a bleed passage to allow trapped hydraulic fluid to...
5584314 Self-cleaning inlet head for a fluid  
The invention provides a self-cleaning inlet head for a fluid, operable in a first, draining, mode and in a second, backflushing, mode, including a body having a front end and a rear end; a piston...
5580226 Spring-loaded nonreturn valve  
The invention relates to a spring-loaded nonreturn valve. For ease of production and assembly, a spring element is designed as a leaf spring which is bent in a zigzag shape and is arranged in a...
5483991 Valve with self-centering seat  
A valve is disclosed having a valve piston slidably movable within a valve casing. The valve also includes a spring biasing the valve piston against a valve seat such that the valve is normally...
5462076 Pressure-compensated pressure limiting valve  
Pressure limiting valves intended for use in underground mining and tunnel construction are able to release the pressure medium discharged if an overload occurs without problems into the return...
5443092 Fluid flow valve device and assemblies containing it  
A valve device for restricting fluid flow has a hollowed piston member having a closed piston end wall and an open piston seat end. The piston end wall is integral with a second piston wall which...
5347812 Plunge valve  
A plunge valve for closing and for opening a connection in a hydraulic conduit comprises a plunge (37) which is slidably movable in the hydraulic conduit (5, 5A) under the influence of the pressure...
5301711 Flow control and measurement device  
A flow distribution and control device for connection to a fluid supply includes an inlet assembly and an outlet assembly. A valve member is positioned in a flow path between the inlet and outlet...
5285813 Pressure limiting valve with stable spring pad  
A pressure limiting valve has a piston sliding inside a piston bore in a piston guide. A valve spring and a spring plate move in a spring sleeve which has an adjusting screw at an end opposite the...
5267452 Back pressure valve  
A shaft-mounted piston is reciprocally disposed on the axis of a valve inlet opening such that increased pressure from within the motor casing of a centrifugal compressor causes the piston to move...
5265642 Pressure relief valve in a cap  
A pressure relief valve in a cap, and more particularly a pressure relief valve in a cap for use with pressure vessels in chromatography systems. In one exemplary application the valve is contained...
5241986 Check valve assembly for high-pressure applications  
A check valve having a valve housing with an outlet fluid passage and a housing valve cavity in communication with each other. A valve body has an inlet fluid passage and a body cavity in...
5240037 Gas line check valve  
A low pressure gas flow check valve is formed by a relatively thin disc having an central aperture and valve seat is adapted to be interposed between adjacent flanges in a pipeline. The check valve...
5215116 Pressure-relief valve with stepped or double piston  
A pressure limiting valve having high flow rates, especially for use as a safety valve with mine props and the like, uses a tubular main valve member whose interior communicates with the valve...
5180443 Pressure-relief valve with stepped or double piston  
A pressure-limiting valve having high flow rates, especially for uses as a safety valve with mine props and the like, uses a tubular main-valve member whose interior communiciates with the valve...
5170818 Safety valve  
A safety valve including a brass valve body having a through bore provided with a circular sharp-edged valve seat and another sharp edge. A valve stem carrying a ball valve and a biasing spring...
5168895 Pressure-relief valve with teflon seal  
A pressure-relief valve for the protection of hydraulic units in underground mining, functionable against a sudden overload in pressure, is provided including a valve housing having an upper part...
5069111 Hydraulic pressure-control device with parallel compression springs  
A hydraulic pressure-control device, specially for powershift transmissions of motor vehicles, comprises a fluid pump (1) and a main valve for regulating the pressure in at least one high-pressure...
5065790 Check valve  
A pneumatic check valve includes valve connections having a common axis of symmetry and a valve body at least partially guided in a droplet-shaped member disposed between the two connections to...
5054518 Variable flow self-cleaning valve preferably for ventricular offtake branches of cephalorachidian fluid  
The present valve, employable by persons affected by hydrocephalus, permits discharge into suitable offtake branches of the excess cephalorhachidian fluid existing in the ventricles of the brain....
5018547 Pressure actuated valve  
A pressure actuated valve is normally closed by the action of an externally manually adjustable spring that acts against the back side of the valve element. The valve element surface opposite that...
4979541 Brake bleeder screw  
This invention is an improved brake bleeder screw for use in the removal of entrapped gases from a vehicle's hydraulic wheel brake system. It is comprised of a discharge section containing external...
4883083 Relief valve assembly; piston member from same and filter head assembly incorporating same  
A filter head assembly includes a relief valve assembly therein, and is adapted for use in a spin-on filter or the like. When the relief valve assembly is in a closed mode of operation, fluid flow...
4876857 Shut off/pressure regulating valve for turbine engine  
A shut off and pressure regulator valve (10) for use with a metering valve (12) in a fuel system for a turbine engine. A pressure responsive piston (70) freely moves in a sleeve (48) to initiate...
4874066 Variable flow shock absorber and method  
A shock absorber including a piston with two relatively movable elements defining a variable-sized, fluid-filled space. The size of the space is decreased when subjected to external fluid pressure...
4860856 Oil pressure adjustment device for engines  
In an engine lubrication an external bypass mechanism for venting pressurized liquid around the lubricated areas, whereby the high side pressure is maintained within a desired range. The bypass...
4820166 Apparatus and system for selectively deflating tires, and causing power steering and power brake failures for training drivers  
An improved apparatus for selectively deflating and inflating a tire mounted on a wheel comprises a valve assembly rigidly and coaxially mounted on a vehicular wheel incorporating a reciprocally...
4805663 Flow control valve  
A flow-metering valve assembly is provided for vehicle fuel tanks. The assembly includes a valve housing having an interior wall configured to define a chamber having an inlet and an exhaust...
4790347 Pressure-relief valve devices  
A pressure-relief valve device has the stem of a valve member guided within a sealed bore of a guide piece screwed into or onto a sleeve-like housing. A spring in the housing acts on a pressure...
4782736 Pressure-control valve  
A pressure-control valve is connected to a working cylinder of an hydraulic, walking, mine roof support on one side of the piston in the cylinder. In its function as a pressure-limiting valve, it...
4742997 Gas spring with separate charging and pressure relief valves  
For use in a system comprising a source of pressurized fluid and a plurality of lines extending to a plurality of gas springs, a gas spring comprising a cylindrical body with a bore, a piston rod...
4742844 Flow control valve  
A flow-metering valve assembly is provided for vehicle fuel tanks. The assembly includes a valve housing having an interior wall configured to define a chamber having an inlet and an exhaust...
4739612 Shuttle valve for oil tank filler neck  
The invention relates to a shuttle valve designed to retain fluid in a pressurized system when the cap or closure of the filler neck is damaged or left off. In a preferred application, the shuttle...
4724857 Pressure relief valve  
A valve body having a lateral exhaust port is provided with a valve movable toward and away from a fluid inlet sealing face at its pressure connected end and guided by a valve stem projecting...
4722672 Hydraulic energy-conversion device  
A device capable of functioning as a fluid pump or motor has a related hydraulic circuit controlling the relationship of the case pressure to the pressure in high-pressure port. The arrangement...
4721129 Relief valve  
A relief valve for relieving pressure in a system and sealing the same from incoming rain or other moisture or foreign material after relief of pressure. The valve has a spring biased piston which...
4718450 Pressure relief valve  
A valve head of the pressure relief valve is urged into the closed (seated) position by a spring, assisted by a force derived from pressurized fluid which is situated in a chamber behind the valve...
4716928 Pressure-relief valve devices  
A pressure-relief hydraulic valve device for mining equipment is composed of a hollow sleeve mounting a guide with a through bore slidably receiving the stem of a valve member. The stem is provided...
4715403 Flow control valve  
A flow-metering valve assembly is provided for vehicle fuel tanks. The assembly includes a valve housing having an interior wall configured to define a chamber having an inlet and an exhaust...
4715393 Fluid dispersing checkvalve  
A checkvalve is provided for dispersing a fluid into a flowing stream. All operating parts of the checkvalve are located in the flowing stream to provide uniform and rapid dispersion of the fluid.
4709680 Device for controlling fuel injection apparatus in diesel engines  
Fuel injection apparatus for diesel engines includes an injection pump connected to an injector nozzle through a control device constituted by two calibrated and opposed non-return valves arranged...
4691778 Downhole water flow controller for aquifer storage recovery wells  
A downhole flow controller for use in recharge, injection and aquifer storage recovery (ASR) wells to prevent the free cascading of water and thereby eliminate the entrainment of air which may...
4687177 Device for adjusting the switching time of a valve member  
The switching time in opening and closing a valve is determined by a closing throttle and an opening throttle which both together are arranged in series with a check valve. For closing the valve...
4687022 Pressure relief valve and regulator  
A pressure relief valve and regulator in which the valve chamber has a side port for connecting to the pressure line to be monitored. The valve seat opens to an exhaust and has a diameter slightly...
4682625 Springloaded shutoff valve apparatus  
Shutoff valve apparatus includes a spring-loaded piston with two guide portions disposed in bores and the piston includes a fluid passage extending through the piston and communicating with one of...
4681138 Valvular device for the inflation of balloons, particularly balloons supported by tubular shafts  
Device for inflating balloons, particularly balloons supported by tubular shafts, comprising a one-way valve mounted in or at one end of the shaft to be inserted into the neck of the balloon. The...
4678004 Quick-action on/off valve  
A quick-action on/off valve comprises a housing including a partition having an interconnecting passageway between the two chambers on opposite sides of the partition. One chamber includes a fixed...
4660595 Pressure-limiting valve  
A pressure-limiting valve comprises a cylindrical actuator piston guided displaceably in a bore and held under the pressure of a spring in the closure position of the valve. Longitudinally-directed...
4657043 Oil pressure regulating valve  
A pressure relief valve for a lubrication system of an internal combustion engine includes a valve body disposed within a generally cylindrical bore in a housing. The valve body is axially movable...
4588163 Valve stem travel limiting apparatus  
A stem travel limiting apparatus provides a relatively tamper proof limit setting device for an adjustable valve stem. In a preferred embodiment, an internally threaded annular collar is positioned...
Matches 51 - 100 out of 408 < 1 2 3 4 5 6 7 8 9 >