On the turbulent shear flow of an elastico-viscous fluid
Constrained turbulent shear flows of newtonian fluid solvents with polymer solutes - elastic viscous fluids
SHEAR FLOW↗
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Improved fluid control valve extends diaphragm life
Wear resistance of flexible diaphragms in fluid control valves is increased by incorporating a soft rubber washer at the bottom of the piston, a flexible buffer between the diaphragm and the valve seat, and a fluid feedback arrangement. The stress and wear of components at the valve seat are minimized.
Mac Glashan, W. F.↗
Fluid check valve has fail-safe feature
Check valve ensures unidirectional fluid flow and, in case of failure, vents the downstream fluid to the atmosphere and gives a positive indication of malfunction. This dual valve consists of a master check valve and a fail-safe valve.
Gaul, L. C.↗
Binary counter uses fluid logic elements
Binary counter with two fluid flip-flops in each stage has an output taken from the output of the second flip-flop. The flip-flops each contain three fluid logic elements.
Source record↗
Three-dimensional wire-mesh capacitor system measures fluid density
Gaging system automatically measures the bulk density of a stored, electrically nonconductive fluid containing varying portions of liquid and vapor. The system employs a three-dimensional wire-mesh capacitor whose capacitance varies with the bulk density of the fluid dielectric medium between the capacitor plates.
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An investigation of fluid extrusion of metals final report
Tensile tests, stretching, and fluid-to-fluid extrusion of metals
EXTRUSION↗
Capacitive system detects and locates fluid leaks
Electronic monitoring system automatically detects and locates minute leaks in seams of large fluid storage tanks and pipelines covered with thermal insulation. The system uses a capacitive tape-sensing element that is adhesively bonded over seams where fluid leaks are likely to occur.
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Queuing register uses fluid logic elements
Queuing register /a multistage bit-shifting device/ uses a series of pure fluid elements to perform the required logic operations. The register has several stages of three-state pure fluid elements combined with two-input NOR gates.
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Fluid damping reduces bellows seal fatigue failures
Service life of a bellows-type seal in the presence of mechanical vibration is increased by a system of interconnected bellows with intervening cavities filled with a fluid which damps the amplitude of periodic deflection of the sealing bellows. Different damping fluids are used according to environmental conditions.
Source record↗
Diaphragm valve for corrosive and high temperature fluid flow control has unique features
Monometallic diaphragm valve is used for corrosive and high temperature fluid flow control. The body, diaphragm, and plug of the valve are welded together to form an integral leakproof unit for containing the fluid as it passes through the valve from inlet to outlet.
Ebihara, B. T.↗
Apparatus enables automatic microanalysis of body fluids
Apparatus will automatically and quantitatively determine body fluid constituents which are amenable to analysis by fluorometry or colorimetry. The results of the tests are displayed as percentages of full scale deflection on a strip-chart recorder. The apparatus can also be adapted for microanalysis of various other fluids.
Soffen, G. A.↗
Hydraulic fluid serves as mandrel for small diameter refractory tube drawing
Sealing hydraulic fluid within a tube and passing the tube through a reducing die produces high quality small diameter refractory metal tubing. The encased fluid eliminates the need for mandrel or ductile core removal and drawing can proceed with less handling operations.
Mayfield, R. M.↗
Stationary device produces homogeneous mixture of fluids
Stationary device produces a homogeneous mixture of two or more one-phase or two-phase fluids. The device contains two concentric flow guides with helical passageways through which the fluids are forced into turbulent flow by the system pressure differential.
Baker, D. I.↗
Rotational fluid coupling eliminates hose entanglements
Rotational fluid coupling mechanism circulates a temperature controlled fluid between a stationary heat exchanger and a coolant plate on a rotating platform. The mechanism consists of two concentric cylinders containing one or more flexible tubes which are controlled and positioned in such a way that it eliminates tubing entanglement.
Aubol, P. B.↗
Photographic method measures particle size and velocity in fluid stream
Method employing a nonframing motion picture camera, a continuous front light source, and a strobe light determines the size and velocity of small particles in nonturbulent fluid streams. This method is used in the study of the motion of solid and liquid particles in research and industrial fluid flow systems.
Dickerson, R. A.↗
Proceedings of the Conference on the Design of Leak-tight Fluid Connectors
These technical papers were prepared for presentation at the Conference on Design of Leak-tight Fluid Connectors sponsored by the Society of Automotive Engineers and NASA/George C. Marshall Space Flight Center. This conference was planned to promote the direct exchange of technical information concerning separable, semipermanent and permanent leak-tight fluid connectors for space vehicle use. A conference emphasizing design of separable connectors was previously held on March 24 and 25, 1964. The papers represent a cross section of significant topics on design, testing and instrumentation. This exchange of technical information between government agencies and private industry is certain to benefit the nation's space effort and other fields of technology. The sponsors of the conference extend their thanks to all companies and individuals who have contributed toward this meeting.
Connector↗
Characterization of backstreaming fluids in high-vacuum systems by gas chromatography.
Backstreamed fluid analysis via gas chromatography, using polyphenyl ether as diffusion pump fluid
DIFFUSION WAVE↗
Improved fluid control circuit operates on low power input
Standard electromagnetic relay actuates fluid control circuits with low level electrical signals by switching a fluid amplifier that drives a spool valve.
Gebben, V.↗