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Patents Published on 02/03/1981


See All Patents Issued In 1981


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NumberTitleIssue Date
4248077Jaw for riveter
In a hydraulic riveter wherein an extension on a piston carries a jaw holder containing an annular array of gripping segments with conical outer surfaces slidable on a conical inner surface of the holder, a second piston is slidable in a bore and is opera...
02/03/1981
4248078Automobile body clamp
A clamp for use in straightening automobile bodies is adapted for securement to a rocker panel and has two sets of jaws, one of which may be clamped to a top region of said rocker panel assembly and the other which may be clamped to a bottom portion of sa...
02/03/1981
4248079Tram for use in an apparatus for repairing and straightening
A tram is disclosed, in its preferred form, for use in an apparatus for repairing and straightening. In the preferred embodiment, the tram includes a tram carrier member including first and second side walls. The tram is mounted between right and left tra...
02/03/1981
4248080Wheel-mounting tire pressure gage with failsafe features
A tire pressure gage for integral mounting on the wheel of an aircraft tire is provided with failsafe features to reduce the likelihood of sudden tire pressure loss through catastrophic failure of the gage. A pressure relief valve vents the case when the ...
02/03/1981
4248081Tool for testing earth formations in boreholes
A tool for testing earth formations in boreholes provides a failsafe function for retracting the sealing pad elements of a formation isolation device, in the form of elements operable in response to failure of downhole power supply for the tool to effect ...
02/03/1981
4248082Anemometer
An anemometer which reads the airspeed in digital numbers by light-emitting diodes. A small electric generator is operated by a windmill. This generator output is sent through digital circuitry and ultimately read out in numbers on LEDs....
02/03/1981
4248083Containerless high temperature calorimeter apparatus
Containerless high temperature calorimeter apparatus is disclosed for measuring high temperature thermophysical properties of materials which includes a unique containerless heating apparatus wherein the specimen is suspended and heated by electron bombar...
02/03/1981
4248084Bomb calorimeter
A bomb calorimeter is presented in which a cartridge type specimen holder is provided in a fitted bomb casing so that a separate pressure seal is no longer required and the ease of making repeated tests is enhanced. The overall efficiency is also improved...
02/03/1981
4248085Measurement of relative velocities
An apparatus and method for measuring the velocity of a relative movement between first and second bodies or between a first body and a fluid. The first body may be stationary and the second body a moving body, such as hot strip steel. Alternatively, the ...
02/03/1981
4248086Device for measuring the mass flow or flow rate of an insulating liquid
A device for measuring the mass flow or flow rate of an insulating liquid which entrains ions produced by an electrode positioned in the path of the liquid flow, this electrode being brought to a certain potential with respect to at least one other electr...
02/03/1981
4248087System and method for determining fluid level in a container
Methods and systems employing acoustic techniques are disclosed for determining the level of fluid in a container. Flexural mode acoustic waves are set up in the walls of the container. The change in travel time of flexural mode acoustic waves are measure...
02/03/1981
4248088Float for use in tank gauging systems
A float is disclosed for use in tank gauging systems of the type having a vertically supported guide. The float includes a donut-shaped body member adapted to be positioned about the guide to ride freely with the liquid surface. A discharged tube is posit...
02/03/1981
4248089Temperature measuring
A reversible disposable thermometer usable as a safe, convenient and low cost replacement for the mercury in glass clinical thermometer, comprises temperature indicating materials, with controllable and precise melting points, embedded in a flat probe, wh...
02/03/1981
4248090Apparatus for ultrasonically imaging a body
The disclosure is directed to an apparatus for ultrasonically investigating a section or slice of a body by transmitting ultrasonic energy into the body and determining the characteristics of the ultrasonic energy reflected therefrom. A transducer is coup...
02/03/1981
4248091Ultrasonic pulse-echo apparatus
For use in an ultrasonic pulse-echo apparatus including an ultrasonic wave transducer for transmitting an ultrasonic wave into an object to be examined and for producing a first image signal corresponding to echo pulses reflected from the interior of the ...
02/03/1981
4248092Method and apparatus for efficiently generating elastic waves with a transducer
Disclosed is a method for generating an ultrasonic wave in a material, utilizing a transducer adapted to induce a higher than fundamental mode wave in the material and a signal generator adapted to drive the transducer at a frequency above the cutoff freq...
02/03/1981
4248093Holographic resolution of complex sound fields
A system for determining the spatial structure or composition of complex sound fields within a duct or other structural enclosure that is excited by acoustic energy is disclosed wherein at least two holograms are recorded and analyzed to provide both the ...
02/03/1981
4248094Measurement of residual stresses by local melting
Residual stress measurements are made using a strain gage and stress relief achieved by local melting of a region of the object being tested by a laser beam or other focused heat source. Surface strain is measured after the molten region resolidifies, and...
02/03/1981
4248095Method of and system for measuring physical quantities of a rotating body at many points thereof
A method and system are disclosed for measuring physical quantities of a rotating body at many points thereof in a contact-free manner. The present measurement comprises electromagnetically applying control signals to the rotating body outside the body an...
02/03/1981
4248096Machine for fatigue testing of materials
A machine for cyclically applying a force to material specimens for testing the fatigue properties thereof. The specimens are positioned between two members, at least one of which moves angularly in a wobble type of action in a cyclic operation. Enclosure...
02/03/1981
4248097Torsion shear apparatus
A torsion shear apparatus, especially for testing adhesives, in which two members of a test specimen bonded one into the other are subjected to a torsional load, comprising a rigid retainer for non-rotatable and form-locked retention of the first member o...
02/03/1981
4248098Flow metering apparatus
A flow metering apparatus is disclosed which includes a dust in which a fluid to be measured flows, a pillar-shaped vortex generator inserted into the duct, and a force detector fixed firmly to the vortex generator substantially in an integrated manner, a...
02/03/1981
4248099Mass rate of flow meter with improved fluid drive
An improved cylindrical conduit for directing fluid flow to the swirl generator of an angular momentum type rate of flow meter commonly employed in measuring fuel flow rate in aircraft engines. The conduit includes a first set of longitudinally extending,...
02/03/1981
4248100Mass rate of flow meter with improved magnetic circuit
A mass rate of flow meter with a first magnet and sensing coil for detecting the passage of an unrestrained rotor past the sensing coil. The position of a restrained turbine reactor is sensed by locating an axially extending magnetic flux linkage near the...
02/03/1981
4248101Drive units provided with driving rollers
A driving unit having a rotatable driving roller and a driven roller, an elongated member capable of moving longitudinally and independently of the rollers, said elongated member comprising a rigid bar with a rounded upper surface and a strip of flexible ...
02/03/1981
4248102Push button type tuner apparatus
A push button type tuning apparatus comprising a plurality of push buttons adapted to be pressed at the time of preset tuning and retuning operations, memory plates provided rotatably with respect to each of the push buttons, clamp plates provided with re...
02/03/1981
4248103Straight line mechanism
Linkage mechanisms for industrial manipulators are disclosed which are based on so-called straight line mechanisms. The preferred straight line mechanism is of the conchoid type. The linkage mechanisms may be employed to move functional elements of indust...
02/03/1981
4248104Method of and means for providing a cam-actuated, spring-return mechanism wherein the torque output is a function of the cam profile
The profile of the cam, of a cam-actuated, spring-return mechanism of the type which includes a cam-shaft, a cam-follower, a cam-follower-shaft and spring means having a given spring rate and initial preload, is shaped in such a manner, that for a particu...
02/03/1981
4248105Horizontal stabilizer drive
A mechanical power transmission apparatus, of the differential gear type, for actuating an airplane control surface requiring two independent actuator inputs to a single control surface. Asymmetric loading to the control surface is accommodated by a mecha...
02/03/1981
4248106First-second gear shift valve of hydraulic transmission control system
In a hydraulic control system of an automatic power transmission is provided a first-second gear shift valve which is to be acted upon through only one fluid inlet port by a signal fluid pressure representative of a manual first forward drive range select...
02/03/1981
4248107Adjusting torque wrench
An improved adjusting torque wrench includes an adjusting screw that is utilized for the purpose of changing the torque setting of the wrench. The screw has a radial flange thereon having a plurality of circumferentially spaced notches in the outer periph...
02/03/1981
4248108Lathe
A lathe, wherein its turret kinematically associated with a drive for its indexing, carries on its face a plurality of tool-holders and has a plurality of teeth on the peripheral cylindrical portion thereof, the number of said teeth corresponding to the n...
02/03/1981
4248109Pull type cut-off press
An improved method and apparatus for cutting segments from a continuously moving stock piece are disclosed wherein a cut-off press is accelerated to exceed the speed of the stock piece and to substantially eliminate a pushing force by the stock against a ...
02/03/1981
4248110Apparatus for and method of cutting a belt sleeve
An apparatus for and method of cutting a substantially polymeric belt-defining sleeve to define a plurality of endless power transmission belt constructions are provided by rotating such belt sleeve on a rotating apparatus and cutting a plurality of axial...
02/03/1981
4248111Punch guide assembly
A punch guide assembly having a removable stripper plate. The assembly includes clip tabs having stripper plate holding tabs formed on ends thereof for disposition through a hole provided in the punch guide and for reception within an appropriate recess i...
02/03/1981
4248112Label machine
A label machine for forming individual labels from an endless tape strip. The machine includes a novel label removal device which uses compressed air to insure removal of each label to a collection station after it is cut from the endless strip, thereby p...
02/03/1981
4248113Cutter guide drive for cigarette-making machine
This cutter guide drive mechanism for cigarette-making machine is of the type wherein the cutter guide member is kept constantly parallel to itself while being rotatably driven at a tangential velocity equal to the linear velocity of the tobacco rod. The ...
02/03/1981
4248114Cutter of elongated material
An improved apparatus for cutting material such as filamentary tows into predetermined lengths comprising (a) a cutting assembly including a plurality of spaced apart knife edges secured to a mounting member at equal radial distances from a point on said ...
02/03/1981
4248115Sliding table assembly - tilting arbor saws
An extension assembly for handling large workpieces, such as wall panels, doors, or the like. It is designed to be attached to existing saws as well as new ones, and minimizes the frictional resistance of moving a workpiece across a saw table....
02/03/1981
4248116Guards for cutting instruments
A guard for moving-blade cutting instruments, for instance band-saws and band-knives. The guard is in the form of a comb or other toothed member, mounted alongside the blade and vibrated cyclically so that the tips of the teeth lie proud of the cutting ed...
02/03/1981
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