Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 5488821 | Mulching mower mechanism A mulching mower mechanism, having an inverted U-shaped channel member positioned within the outer periphery of a cutting chamber of a mower deck for generally confining the clippings circulating at the outer periphery of the cutting chamber. The channel ... | 02/06/1996 |
| 5488822 | Curved fiber guide channel for an open-end spinning apparatus An open-end spinning apparatus includes a feed device for supplying sliver; a device downstream of the feed device for separating the sliver into individual fibers; a fiber guide channel downstream of the fiber separating device for pneumatically transfer... | 02/06/1996 |
| 5488823 | Turbocharger-based bleed-air driven fuel gas booster system and method A method and system for increasing the pressure of gaseous fuel delivered to a fuel system of a gas turbine engine. A portion of pressurized gas or compressed air is discharged from a high-pressure section of the gas turbine engine and is communicated to ... | 02/06/1996 |
| 5488824 | Throttle control device controlling two engines of a same aerodyne The throttle control device controlling two engines of a same aerodyne which embodies the invention uses a drive mechanism mounted rotatably about a fixed axis and rotated by means of a servomotor controlled by a computer ensuring automatic flight velocit... | 02/06/1996 |
| 5488825 | Gas turbine vane with enhanced cooling A gas turbine stationary vane having an airfoil portion and inner and outer shrouds. Five serpentine radially extending cooling air passages are formed in the vane airfoil. The first passage is disposed adjacent the leading edge of the airfoil and the sec... | 02/06/1996 |
| 5488826 | Heat isolated catalytic reactor A catalytic reactor for reducing pollutants in the exhaust gas from an internal combustion engine includes a catalyst element and a heat shield exterior to the catalyst element. The heat shield and catalyst element are mounted within an exhaust pipe so th... | 02/06/1996 |
| 5488827 | Apparatus and method for mounting and operating multile turbochargers in parallel An apparatus and method for establishing parallel flow to and from a plurality of turbochargers operating in parallel. The turbochargers are mounted on a manifold that has a high pressure chamber and a low pressure chamber. A plurality of turbines are mou... | 02/06/1996 |
| 5488828 | Energy generating apparatus An apparatus and method for obtaining energy is disclosed. The method includes heating a fluid in a liquid state by heat exchange with a heat source to generate a vapor of the fluid at a first elevation. The vapor of the fluid is caused to rise to a secon... | 02/06/1996 |
| 5488829 | Method and apparatus for reducing noise generated by combustion A combustor in which fuel is introduced into a combustion zone at a first acute angle with respect to the radially outward direction so as to swirl the fuel about the combustor axis, thereby improving the stability of the combustion process. Combustion ai... | 02/06/1996 |
| 5488830 | Orifice pulse tube with reservoir within compressor A cryogenic cooler of the pulse tube type is provided wherein the reservoir is disposed within the compressor housing. The invention provides the high efficiencies associated with orifice pulse tube cryogenic coolers, but is more compact and is generally ... | 02/06/1996 |
| 5488831 | Liquid cryogen withdrawal device A liquid cryogen withdrawal device includes a plug (14) for insertion into the neck of a cryogen-containing dewar (10) in gas-tight relationship. A withdrawal tube (17) passes through the plug to conduct liquid from the bottom of the dewar through a sinte... | 02/06/1996 |
| 5488832 | Matched thermal expansion support system A matched thermal expansion support system for cryogenically cooled x-ray spectrometers is described for the purpose of holding x-ray detecting crystals precisely in position throughout large temperature changes. This thermal matching is achieved by a det... | 02/06/1996 |
| 5488833 | Tangential flow cold trap A cold trap for condensing and polymerizing residual vapor. The cold trap comprises a containment vessel which comprises a vertical sidewall defining a cylindrical inner surface of substantially constant diameter. Fluidly connected to the sidewall is a va... | 02/06/1996 |
| 5488834 | Control circuit for a refrigerating system Control circuit for a refrigerating system, used in hermetic compressors, comprising first and second temperature sensors (61,62) and a current sensor (63) for the current drawn by the motor, said control circuit including a central processing unit (30), ... | 02/06/1996 |
| 5488835 | Methods and devices for energy conservation in refrigerated chambers Methods and devices for energy conservation to be retrofitted to refrigerated chambers or boxes of the type comprising an insulated chamber and an associated compression-type refrigeration system. The energy conservation devices disclosed are adapted to b... | 02/06/1996 |
| 5488836 | Method of and device for heat exchange with a fluid in the course of partial freezing The present invention relates to a device for heat exchange between a refrigerant in the course of vaporization and a fluid to be cooled in the course of freezing. According to the invention, the device comprises a conduit for the fluid to be cooled, a sh... | 02/06/1996 |
| 5488837 | Electric automobile An electric automobile comprises a wheel driving motor (8, 10, 15, 21, 50, 80) and a refrigerating system for air-conditioning the interior of an electric automobile. The refrigerating system has a compressor (7, 22, 57), an outdoor heat exchanger (6, 25,... | 02/06/1996 |
| 5488839 | Enhanced baguette setting A jewelry setting for translucent, diamond baguettes in which the position of the baguette gemstones are interleaved with metallic reproductions of the gemstones to create the illusion of uniformly mounted diamond baguettes. The geometric configuration of... | 02/06/1996 |
| 5488840 | Latch needle for a textile machine A latch needle for a textile machine includes a needle shank having a sawslot defined in the needle shank by two facing cheeks forming part of the needle shank; a pivot pin supported by the cheeks and extending transversely to the length dimension of the ... | 02/06/1996 |
| 5488841 | Structure of selecting mechanism for circular knitting machines A selecting mechanism for a circular knitting machine, including a hollow base, which holds pairs of selecting jacks at different elevations, and a selecting jack pushing-up device detachably fastened to the hollow base to hold pairs of pushing-up plates,... | 02/06/1996 |
| 5488842 | Method for deodorizing and refreshing for dry cleaning and dry cleaning apparatus using such method The present invention provides a method for deodorizing and refreshing petroleum group solvent used in a dry cleaning apparatus, and a dry cleaning apparatus using such a method, which can maintain the circulating solvent in a fresh condition for a long t... | 02/06/1996 |
| 5488843 | Safety, insurance and alarm mechanical lock A safety, insurance and alarm mechanical lock contains an external lock portion, a multicylinder type lock cylinder portion, and a lock body portion engaging with the lock cylinder portion. The lock cylinder portion comprises a front part including an ext... | 02/06/1996 |
| 5488844 | Security device A device is adapted for use primarily as a theft deterrent for bicycles, mopeds and other two and three wheeled self propelled or motorized conveyances, said device comprises a pair of opposed, telescopically engaging U-shaped members and locking means as... | 02/06/1996 |
| 5488845 | Single insertion locking U-shaped padlock structure A single insertion locking U-shaped padlock structure is comprised of a pintle rod, with an eccentricity consisting of a radially projecting oval surface section, supported by a concentric tensile spring, a rotation limit notch on a stepped tumbler and a ... | 02/06/1996 |
| 5488846 | Vehicle security device A security device for an automobile having a floor pan that defines a lower surface of an operators compartment in the automobile. The security mechanism includes a key operated lock assembly that is securely mounted in the floor pan. A first end of the l... | 02/06/1996 |
| 5488847 | Pick proof lock A directional control and time delay interlock for making a key operable rotatable tumbler lock substantially pick-proof. When the proper key is inserted the core of the lock is rotatable in a first direction for elevating a biased pawl from locking engag... | 02/06/1996 |
| 5488848 | Keyring holder A keyring holder including a base frame having a ring at the top for hanging, a fixed half-round hook fixedly connected to one end of the base frame, and a movable hook pivoted to an opposite end of the base frame, and wherein the movable half-round hook ... | 02/06/1996 |
| 5488849 | Rolling and flanging tool to bend back and/or widen fender-wheel well edges The invention concerns a rolling and flanging tool to bend back and/or widen fender-wheelwell edges of motor vehicles. To carry out the bending back and/or widening of fender-wheelwell edges in simpler and more uniform manner and without risk of damage to... | 02/06/1996 |
| 5488850 | Method for producing a cryostatic stabilizer Disclosure is a method for producing a cryostatic stabilizer composed of high-purity aluminum which comprises extruding the high-purity aluminum at an extrusion temperature of 250° to 500° C., an extrusion speed of not more than 20 m/min and an extrusio... | 02/06/1996 |
| 5488851 | Multistage wiredrawing machine provided with pull adjustment A wiredrawing machine (10) consists of a plurality of stages (11) in cascade, each stage comprising a drawbench (13) for passage of the wire (14) partially passed over a power-driven traction pulley (12). The traction pulley is kinematically connected for... | 02/06/1996 |
| 5488852 | Transfer feeder for hot-forging presses A transfer feeder for hot-forging presses having a clamping mechanism to move two parallel feed bars in the clamp and unclamp directions, an advancing mechanism to move them in the advance and return directions, and a lifting mechanism to raise and lower ... | 02/06/1996 |
| 5488853 | Measurement arrangement for calibrating ultrasonic shock wave sensors A lithotripsy measurement arrangement for calibrating ultrasonic shock wave sensors includes a generator 32 that is arranged at one end of a steepening tube 31 filled with a sound-carrying medium 3. Additionally, the arrangement includes an optical sensor... | 02/06/1996 |
| 5488854 | Pipetting apparatus The presence of air bubbles is detected during a dispensing of samples for determining if the volume of the sample dispensed is insufficient. The characteristic of a presence-of-bubbles curve (101) has a difference in a pressure inside a nozzle from the charac... | 02/06/1996 |
| 5488855 | Testing lubricating oil for mineral oil contaminants A method of testing for contaminating mineral oil in a sample of synthetic ester lubricating oil from mechanical vapor recompression type heat transfer equipment in a system which is to be retrofilled with hydrohalocarbon working fluid, comprises mixing a... | 02/06/1996 |
| 5488856 | Monitor for growth and deposit A method for monitoring the formation of biofilm on surfaces which are exposed to a flowpath of liquid essentially containing water includes flowing a liquid along the flowpath only once without being circulated through a tube section, through and along a... | 02/06/1996 |
| 5488857 | Protrusion sensor for sensing protrusion on a disc A protrusion sensor according to the present invention comprises a protrusion sensing head, a suspension spring having a front end portion fixedly mounting the protrusion sensing head and a rear end portion fixedly secured to one surface of a support arm,... | 02/06/1996 |
| 5488858 | Method for monitoring lambda sensors A method for monitoring lambda sensors includes ascertaining a reference value from a magnitude of switching times under operating conditions of a lambda regulation cycle, in which a sensor signal changes from a rich value to a lean value or from a lean v... | 02/06/1996 |
| 5488859 | Vehicle testing device and method A vehicle testing device and method are provided whereby a mechanic can easily test the pneumatic brake systems of a tractor-trailer. The device is used by inputting into the device the electrical and pneumatic outputs of a tractor and by outputting elect... | 02/06/1996 |
| 5488860 | Apparatus for determining the position of a piston in a fluidic actuator Apparatus for determining the position of a piston in a hydraulically or pneumatically operated actuator including a fixed position, rotatable shaft having a pair of attached pins, each pin off-set from the center of the shaft. The pins are positioned on ... | 02/06/1996 |
| 5488861 | Wheel balancer apparatus and method The invention provides a wheel balancer with a filtering system that reduces signal noise using a phase shift and subtraction circuit. In addition the inventive wheel balancer utilizes an automated parameter entry device, and a fast data refresh system wh... | 02/06/1996 |
