Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 4977681 | Bore Gauge A bore gauge having a fixed and an opposing automatically-adjustable contact anvil, each such anvil having an extended length in the direction of the axis of the bore being gauged, the gauge having a body about which is adjustably secured a reference plat... | 12/18/1990 |
| 4934178 | Method and apparatus for determining the density of a gas The method and apparatus for determining the density of a gas by measuring the time for a predetermined its flow through a sub-sonic square-root restrictor, such as a venturi, the rate of increase or decrease of the pressure in a reference chamber, a semi... | 06/19/1990 |
| 4901400 | De-hiding tool A de-hiding tool for use in slaughter houses in which a spring biases the reciprocating cutting blades into intimate facial contact to prevent debris from entering the driving mechanism, but achieves long life and low maintenance by interposing a low-fric... | 02/20/1990 |
| 4896200 | Novel semiconductor-based radiation detector A semiconductor-based radiation detector comprising a semiconductor substrate and an amorphous semiconductor layer formed on one surface of the substrate, one electrode being applied to the substrate and one to the amorphous layer, the electrodes formed o... | 01/23/1990 |
| 4856212 | Cordless iron with high-temperature, non-scorching sole plate surface Cordless-iron apparatus in which the sole plate of the cordless iron is covered with a polyimide film synthesized by a polycondensation reaction between an aromatic tetrabasic acid and an aromatic amine. Such a film exhibits a broad range of temperature s... | 08/15/1989 |
| 4849621 | Rotational-position detecting apparatus with two shaped photovoltaic surfaces A non-contact, non-electromagnetic, compact, lightweight rotating body rotational-position detecting apparatus in which a disk or ring-shaped light source is spaced from a light receiving plate having thereon a region of photovoltaic material, by a shield... | 07/18/1989 |
| 4849725 | Multipolar circuit breaker A multipolar circuit breaker having a lower case portion with side frame plates and a central frame plate facing the side frame plates on its two major sides, the central frame plate having a deep central groove which forms two flexible central frame plat... | 07/18/1989 |
| 4842289 | Portable ski locker A mobile ski locker comprises an enclosed cabinet, The cabinet having a frame with interconnected vertical and horizontal members and panels carried thereon, all of the panels except the front panel being fixed in position, the front panel including a hin... | 06/27/1989 |
| 4834403 | Combined infant car-seat and stroller A bi-directionally convertible infant car-seat/stroller in which the conversion is effected by operating a single pushbutton which is mechanically coupled to a pair of pawls on opposite sides of the car-seat/stroller, such pawls engaging respective detent... | 05/30/1989 |
| 4823573 | Steering wheel lock A steering wheel locking mechanism comprises an elongated bar. One end of the bar is positioned adjacent the center of the steering wheel. An arcuate boot having the same radius of curvature as the curvature of the steering wheel and the same cross sectio... | 04/25/1989 |
| 4821992 | Picture hook with safety closure A picture hook with a controllable safety closure which prevents accidental dislodging of the picture or other object being suspended from the hook while, at the same time, permitting easy removal of the suspended object when such removal is desired.... | 04/18/1989 |
| 4809907 | Container A slot-less, one-piece container formed of scored cardboard, or its equivalent, the shape of such container being sustained by locking flaps which form interference fits with contiguous side-wall members and one of which simultaneously overlaps bellows-fo... | 03/07/1989 |
| 4796347 | Plastic-pipe pulling tool A plastic-pipe puller tool for installing subterranean utility pipes has a shaft portion, one tapered end on the shaft portion for snugly fitting within the inner wall of the plastic pipe to be installed and a second coupling end which may have a coupler ... | 01/10/1989 |
| 4766993 | Conveying apparatus There is provided specialized conveying apparatus for transporting articles which are confined to a tube or chamber within which the cleanliness is maintained at extremely high levels by utilizing existing precipitator and other apparatus, the motion of t... | 08/30/1988 |
| 4763656 | Transcutaneous electrical nerve stimulation device and method A transcutaneous nerve stimulation device and method in which trains of pulses with exponential decay-times but having fixed amplitudes, fixed widths at the time-axis and fixed repetition rates have their decay-times modulated over a series of discrete va... | 08/16/1988 |
| 4764110 | Orthodontic face bow An orthodontic face bow in which the outer bow is coupled firmly but separably to the inner bow by magnetic means and the inner bow is coupled to opposite molars in the mouth of the patient by a combination of mechanical and magnetic means, all to the end... | 08/16/1988 |
| 4755054 | Multichannel, optical-fiber-based spectrometer An optical-fiber-based spectrometer utilizes a compact, P-C-board-mountable optical multiplexer which permits multiple channels of reference and measurement data from remote and hostile environments to be analyzed in rapid sequence utilizing synchronized ... | 07/05/1988 |
| 4735599 | Drive-belt assembly with one way sprag-clutch Cooling apparatus for a gas transmission system which includes radiator fans each driven in a desired direction from its respective drive-motor by way of a drive-belt with an associated belt tensioner, such belt tensioner including a one-way sprag-clutch ... | 04/05/1988 |
| 4703767 | Method and apparatus for pneumatic-tool maintenance The method and apparatus for maintaining pneumatic tools comprises applying, in an automatically timed sequence, to the tool to be maintained, compressed air mixed with diesel oil; flushing air and compressed air mixed with lubricating oil; the tool being... | 11/03/1987 |
| 4689598 | Electrical fuse An electrical fuse having an element which includes a strip of conductive metal connectable to the fuse terminals, the strip of conductive material having a plurality of holes through its thickness dimension spaced along the center line of its width, succ... | 08/25/1987 |
| 4685484 | Wind shelter An improved wind shelter with an arm mechanism which urges arm segments interconnecting adjacent posts into a horizontal, aligned and opposing position when the wind shelter is in use and which urges such arm segments towards a position in which they are ... | 08/11/1987 |
| 4681156 | Cooling apparatus for a gas transmission system Cooling apparatus for a gas transmission system which includes radiator fans each driven in a desired direction from its respective drive-motor by way of a drive-belt with an associated belt tensioner, such belt tensioner including a one-way sprag-clutch ... | 07/21/1987 |
| 4681175 | Auto-coupling tool for drill-pipes An automatic broken-drill-pipe-intercoupling tool having, a body portion with, at one end, a female threaded adapted to cooperate with the threaded male end of the retrievable portion of a broken drill pipe and at the other end a tapered, multi-interwined... | 07/21/1987 |
| 4640384 | Emergency evacuation system for high-rise buildings An emergency evacuation system for a high-rise building includes a cable carried on a spool positioned on the top of the building, such cable having at its end remote from the spool a weighted coupler dimensioned to be received by a powered spool carried ... | 02/03/1987 |
| 4635491 | Fail-safe motor-driven cylinder for lifting apparatus A motor-driven cylinder for lifting apparatus has screw means including intermeshed internally and externally threaded screw means by which a load can be moved upwardly and downwardly by the torque of a motor, the motor-driven cylinder including torque tr... | 01/13/1987 |
| 4627167 | Leg shear An improved leg shear for use in slaughterhouses includes a movable blade supported in opposed tracks throughout its travel, such movable blade having flat "stop" portions at opposite ends of its cutting edge which, at the end of the travel of the movable... | 12/09/1986 |
| 4599776 | Element removal tool for system carrying fluid under pressure An element removal tool for use with transmission lines for fluids (such as natural gas) under pressure which permits replacement of the element, in a specific case the axle box which is coupled between a metering chamber and the indexing mechanism in a g... | 07/15/1986 |
| 4589612 | High-density accommodations system utilizing convertibility from parallel bedding to vertically staggered seating The present invention first provides a high-density accommodations module which is vertically convertible from parallel bedding to staggered-seating configurations. The respective configurations are more specifically established by at least one set of ver... | 05/20/1986 |
| 4580021 | Circuit breaker A circuit breaker comprising a main contact portion and an actuator portion spaced therefrom and intercoupled therewith by a toggle mechanism, the main contact portion including a fixed-contact member and a movable-contact assembly being actuated into and... | 04/01/1986 |
| 4578881 | Drier for knitted garments One or more mesh-topped, extendable trays removably coupled to a motor-driven fan for causing forced air, normally at ambient temperature, to pass thru the mesh top or tops and thru one or more knitted or crocheted garments lying thereon, the flow of air ... | 04/01/1986 |
| 4574953 | Container for fragile articles A container for fragile articles, such as musical instruments, includes an outer cover of scuff-resistant fabric which is compartmentalized to receive cooperating and similarly sized and shaped, shock-absorbing, inflatable, insert having finger-like eleme... | 03/11/1986 |
| 4575061 | Adjustable alignment tool A tool for the alignment of plastic pipes to be joined by fusion, particularly pipes which have a memory of being curved, comprises a base carrying a fixed clamp at or near one end thereof, such clamp being circular and having a center point, the base hav... | 03/11/1986 |
| 4574170 | Multi-polar circuit breaker By articulating the neutral-pole switching element in a multi-pole circuit breaker, providing spring biasing to urge the two elements into a pre-determined position approximating alignment, advancing the neutral pole switching element with respect to the ... | 03/04/1986 |
| 4573829 | Plastic-pipe locator tool To assist in locating an underground or otherwise hidden non-electrically-conducting plastic pipe carrying a fluid such as heating gas a tool is provided which comprises a reel of relatively stiff but flexible locator wire, a hermetically-sealing first bu... | 03/04/1986 |
| 4566109 | Document handling equipment with counter controllable cover An automatically actuated cover for the exit from a currency counter responds to activation of a counting cycle to cover the exit and responds to completion or termination of a counting cycle to open or uncover the exit.... | 01/21/1986 |
| 4561457 | Coin sorter and counter A coin sorter and counter comprising a sloped combination of a pick-up plate and a selecting plate rotating in unison and forming a sandwich with a separator, such separator having a window therein for permitting coins to pass, one-at-a-time, from the pic... | 12/31/1985 |
| 4550481 | Element removal tool for system carrying fluid under pressure A tool is provided which permits the removal and replacement of a defective axle box in a flow meter or volume-pressure corrector ("system member") without disturbing downstream consumers of the fluid (e.g., gas), under pressure, passing through the syste... | 11/05/1985 |
| 4549475 | Venting device for gas-carrying systems A case closed at one end by a cap and carrying on said cap, inside said case a hub having a stem threaded internally to receive an exhaust pipe from the exhaust port of a gas pressure regulator having an internal relief valve coupled to said exhaust port,... | 10/29/1985 |
| 4543944 | Further-improved control system for solar heating systems A control circuit for controlling the fan or circulating pump in a solar-thermal heating system to prevent unnecessary pump or fan switching when short-term interruptions occur in the insolation of the solar panels includes a temperature-sensitive time-de... | 10/01/1985 |
| 4535987 | Golf tool A multi-purpose golf tool which provides, on a single, collapsible, compact carrier, most of the functions required by a golfer in the course of a round of golf, the carrier, itself, being constructed to perform certain of the functions in addition to act... | 08/20/1985 |
