Inexpensive check valve is installed in standard AN fittings
Check valve with a cylindrical flanged tube body is used in standard AN fittings. The valve also has an easily removable spring-loaded piston.
Martinez, J. S.↗
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Ring valve responds to differential pressure changes
Pressure valve has a moving annular ring seal that automatically reacts to differential pressure changes across the seat. This valve has good potential for the petroleum and chemical industries.
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Cryogenic trap valve has no moving parts
Aluminum-body trap valve with an invar stem keeps cryogenic materials in the liquid state while entering the final component of a system. The valve has no moving parts and is self-actuated and self-monitoring.
Branum, L. W.↗
Soft-seal valve holds hazardous fluids safely
Valve assembly allows transfer of hazardous or reactive fluids such as liquid fluorine without corrosion of valve face and seat material. The assembly consists of a plug to block bulk flow and a soft-seal outer seat to effect zero-leak stoppage.
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Quick-closing valve is actuated by explosive discharge
Remotely controlled plug-type valve shuts off a high-pressure, high-temperature gas flow in a few milliseconds. The valve is actuated by a commercially available electrically initiated squib of low explosive power. More rapid closure is attainable with squibs containing heavier explosive changes.
Majeski, S. J.↗
Gas-injection valve operates at high speed
Fast acting gas valve is used for injecting a short pulse of gas into a vacuum chamber during plasma acceleration experiments. It contains a lightweight closure disk that is forced away from the valve seat when an electromagnetic coil is momentarily energized and immediately rebounds from a stop back onto the seat.
Hoh, F. C.↗
Rotary valve controls multiple hydraulic leveling cylinders
Single rotary valve controls a circular bank of hydraulic leveling cylinders that must maintain large loads within plus or minus three arc minutes of the true vertical. Since the position of the valve spool determines the flow rate of each bank of cylinders and hence cylinder position, different flow rates may be obtained by changing the spool shape.
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Miniature valve accurately controls small volume fluid flow
Hydraulic or pneumatic actuated valve accurately controls small volume flow of liquids or gases by expanding or relaxing an O-ring within an annular flow space. In one application, 2 such valves were used to accurately meter small volumes of helium under a pressure of 1000 psi.
Grunwald, A.↗
Monitoring circuit accurately measures movement of solenoid valve
Solenoid operated valve in a control system powered by direct current issued to accurately measure the valve travel. This system is currently in operation with a 28-vdc power system used for control of fluids in liquid rocket motor test facilities.
Gillett, J. D.↗
Valve effectively controls amount of contaminant in flow stream
Contaminant valve with a coaxial groove rotor uniformly deposits contaminant into a flow stream under full pressure and flow conditions. The valve tests filters and filter elements of hydraulic oil, fuel, or lubricant systems without any detrimental effect on the performance.
Schnitzer, T. E.↗
Temperature responsive valve withstands high impact loading
Valve regulates the flow of a reactant to a chemical heater used in a space application and withstands extreme impact loading. The valve has an upper and a lower housing, the lower containing an inlet and an outlet port, and upper containing a cavity.
Gram, M. B.↗
Eddy current disk valve
Quick-opening, intermittent flow valve requires a small amount of electrical energy to open and which closes by the restoring action of a rubber stop. This eddy current disk valve opens in less than 100 microseconds and takes only 10 joules of energy.
Larson, A. V.↗
Device damps fluid pressure oscillations in vent valve
Device, containing a tuned series arrangement of two plenum chambers and two orifices, damps high pressure fluid oscillations in a vent valve. Used in conjunction with vent valves, it relieves gas pressure that develops in liquid hydrogen and liquid oxygen tanks used on a space vehicle.
Nein, H. J.↗
Dynamically stable check valve concept for wide flow range
Poppet-type check valve design accommodates a wide flow range without the usual chatter problem at low flow conditions. This pressure isolation check valve is proposed for the J-2 rocket pneumatic package.
Absalom, J. G.↗
Low friction servo valve
Valve was developed using air bearings which provide frictionless operation. The servo valve is of the flat plate type with rectangular meter openings. Fluid bearings support the metering plate. The overlap is adjustable by means of a variable hinge block support.
Dustin, M. O.↗
Semitoroidal-diaphragm cavitating valve designed for bipropellant flow control
Valve controls the flow of bipropellant liquids in rocket engines. Throttling and cavitation of the liquids are controlled by axial deflections of a semitoroidal metal diaphram. The valve is highly resistant to corrosion and leakage, and should be useful in food processing and chemical industries.
Young, A. L.↗
Multiple-orifice throttle valve
Multiple-orifice throttle valve is not subject to cold welding in a vacuum environment and is compatible with strong oxidizing fluid. The valve is of all metal construction using simple components that do not slide or rotate and excludes static or dynamic seals.
Fitton, J. S., Jr.↗
Abrasion and resistant discharge valve developed
Discharge valve capable of withstanding intense radiation and high abrasion was developed for use in a fluidized bed reactor. The valve which employs a replaceable Teflon seal, has only one moving part and is designed for remote assembly and disassembly.
Gottwald, W. L.↗