Patents Issued in August 21, 1979
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Patent number: D252706Type: GrantFiled: March 4, 1977Date of Patent: August 21, 1979Assignee: Globol-Werk GmbHInventor: Georg Schimanski
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Patent number: D252707Type: GrantFiled: January 3, 1977Date of Patent: August 21, 1979Inventor: Joel Besnard
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Patent number: D252708Type: GrantFiled: July 20, 1977Date of Patent: August 21, 1979Inventor: Clarence K. Vincent
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Patent number: D252709Type: GrantFiled: November 16, 1978Date of Patent: August 21, 1979Inventor: Flora J. MacFadden
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Patent number: D252710Type: GrantFiled: May 25, 1977Date of Patent: August 21, 1979Inventor: John M. Picinic
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Patent number: D252711Type: GrantFiled: September 26, 1977Date of Patent: August 21, 1979Inventors: David L. White, Beverly A. White
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Patent number: D252712Type: GrantFiled: October 20, 1977Date of Patent: August 21, 1979Inventor: Arthur S. Bradley
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Patent number: D252713Type: GrantFiled: December 14, 1977Date of Patent: August 21, 1979Inventor: Gary D. Weiss
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Patent number: D252714Type: GrantFiled: June 27, 1977Date of Patent: August 21, 1979Inventor: Harold D. Tidwell
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Patent number: D252715Type: GrantFiled: November 26, 1976Date of Patent: August 21, 1979Inventor: David M. Cole
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Patent number: PP4451Abstract: A late-ripening peach tree bearing yellow-fleshed fruit which ships well and is non-browning.Type: GrantFiled: October 28, 1976Date of Patent: August 21, 1979Assignee: Hilltop Orchards & Nurseries, Inc.Inventor: J. Wilson Hughes
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Patent number: PP4452Abstract: This novel rose variety is a mutation of Mercedes and differs therefrom in its blossom colors which are a slightly darker shade of red than that of the parent variety.Type: GrantFiled: December 12, 1977Date of Patent: August 21, 1979Assignee: Jackson & Perkins Co.Inventor: Lars Berggren
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Patent number: PP4453Abstract: A Kentucky bluegrass plant which exhibits strong rhizome spread and thus predominates over other adjacent bluegrasses. The plant is a medium to light green color and this contributes to more drouth tolerance than dark green bluegrasses characteristically have. The new variety has moderate leafspot and powdery mildew resistance and is ideally suited for roadside use where competition from weeds is intense. The density and wear resistance of the new variety also make it useful for athletic fields, playgrounds, parks, and other surfaces where a high wear factor is involved. The new variety of Kentucky bluegrass was developed from clones originally discovered during 1952 among a collection of 24 bluegrasses taken from fairways of the Chicago Golf Club of Wheaton, Ill., in a cultivated area. The new variety was the result of six generations as reported hereinafter, and the variety has been named "Wabash". The instant plant was asexually reproduced by cuttings through succeeding propagations.Type: GrantFiled: May 15, 1978Date of Patent: August 21, 1979Assignee: Purdue Research FoundationInventor: William H. Daniel
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Patent number: PP4454Abstract: The subject of the present disclosure is a new and distinct variety of miniature rose plant characterized by the brilliant red color of the flowers and by the profusion of bloom.Type: GrantFiled: June 21, 1978Date of Patent: August 21, 1979Inventor: Ralph S. Moore
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Patent number: RE30075Abstract: A method and apparatus for locating improperly positioned or bent rolls among a set of rolls which define a confined path of travel for a workpiece, particularly useful for checking a straight or curved roll-rack of a continuous-casting machine. The apparatus may be propelled through the path defined by the rolls by any suitable mechanism. For example, as applied to a roll-rack, the apparatus may be attached to the upper end of a starter bar and propelled with the bar through the rack, or the apparatus may be suspended from a hoist and pulled through the rack. The apparatus includes a housing and means within the housing for measuring the gap between work-engaging faces of the rolls and-or, when used with a curved roll-rack, means for measuring the angular relation of adjacent bottom rolls. The latter measurement is used in determining whether the work-engaging faces lie on arcs of the intended radii.Type: GrantFiled: May 27, 1976Date of Patent: August 21, 1979Assignee: United States Steel CorporationInventors: Michael G. Gonos, Kenneth D. Ives, Ronald S. Vranka
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Patent number: RE30076Abstract: The four-way reversing valve is utilized in refrigerating systems for heat pump applications to interchange the heating and cooling effects of the evaporator and condenser. The three-way pilot valve controls application of high or low system pressure to the end of the chamber adjacent the large piston. The different areas of the two pistons result in movement of the slide valve to the left (both modifications) when high pressure is applied and to the right when low pressure is applied.Type: GrantFiled: July 9, 1976Date of Patent: August 21, 1979Assignee: The Singer CompanyInventor: James M. Thornbery
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Patent number: RE30077Abstract: A boiling surface layer is formed on a thermally conductive wall comprising a plurality of ridges separated by grooves provided at microscopic density, with outer sections of the ridges partly deformed into adjacent grooves to provide sub-surface cavities with restricted openings to the outer surface and sub-surface, openings between some of the cavities.Type: GrantFiled: December 19, 1977Date of Patent: August 21, 1979Assignee: Union Carbide CorporationInventors: Leslie C. Kun, Alfred M. Czikk
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Patent number: RE30078Abstract: A vehicle adapted to move along a supporting surface comprising a frame, a wheel having a centrally located hub mounted on the frame for rotational movement about a first rotational axis relative to the frame, and an inner rotatable member at least partially within the hub. The inner rotatable member is mounted for rotational movement about a second rotational axis. The inner rotatable member and the hub are movable relative to each other along a path having a radial component to permit adjustment in the relative radial position of the first and second rotational axes. The hub and the inner rotatable member are drivingly interconnected by a mechanism which includes a one-way clutch. The operator of the vehicle can adjust the relative radial position of the rotational axes to thereby adjust the drive ratio between the hub and the inner rotatable member.Type: GrantFiled: May 8, 1978Date of Patent: August 21, 1979Assignee: Harris DynamicsInventor: Trevor L. Harris
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Patent number: RE30079Abstract: A fluid brake control system is disclosed for having an improved brake cylinder release control device for use in association with a brake control pipe, a fluid reservoir, and a service valve. The control device has a housing containing a differential abutment subject to actuation from a normal position by differences in pressure between a release spring in a chamber on one side of the abutment and pressure selectively applied to the abutment in another chamber on the opposite side of the abutment. A plurality of poppet type valves operated by longitudinal push rods connected by a bridge are provided in the chamber on each side of the abutment, the bridge being actuated at a midpoint by the abutment.Type: GrantFiled: May 13, 1977Date of Patent: August 21, 1979Assignee: General Signal CorporationInventor: Eugene D. McEathron
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Patent number: RE30080Abstract: Amorphous metal alloys are prepared from titanium-beryllium base compositions comprising about 48 to 68 atom percent titanium and about 32 to 52 atom percent beryllium, with up to about 10 atom percent of beryllium replaced by additional alloying elements such as transition metals and metalloids. These alloys evidence high strength, good ductility and low density. The alloys are potentially useful in applications requiring a high strength-to-weight ratio.Type: GrantFiled: August 11, 1977Date of Patent: August 21, 1979Assignee: Allied Chemical CorporationInventors: Lee E. Tanner, Ranjan Ray, Carl F. Cline
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Patent number: RE30081Abstract: The present invention relates to removal of chromate from an aqueous solution of an alkali metal chlorate and chloride, particularly sodium chlorate and sodium chloride in a selected ratio which has been obtained by the electrolysis of an aqueous solution of alkali metal chloride containing chromate in which the essentially chromate free aqueous solution of alkali metal chlorate and chloride contains the chlorate and chloride in essentially the same selected ratio. In the process the chromate containing aqueous solution of alkali metal chlorate and chloride is acidified with hydrochloric acid to a pH value not smaller than 0.5 and passed through an anionic ion exchange resin bed which has previously been saturated with alkali metal chlorate and chloride. The bed is then regenerated by passing an aqueous solution of an alkali metal hydroxide and alkali metal chloride therethrough to remove chromate therefrom.Type: GrantFiled: May 25, 1978Date of Patent: August 21, 1979Assignee: Huron Chemicals, LimitedInventor: Frank R. Foulkes
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Patent number: RE30082Abstract: An x-ray tube is described including a focusing cup electrode coated with a high work function material, such as platinum or gold, to prevent the field emission of electrons from such cup. The method of applying the non-emitting coating is preferably sputtering or ion plating, but may also be electroplating followed by vacuum fusion in the case of gold or other low melting point metals.Type: GrantFiled: January 27, 1977Date of Patent: August 21, 1979Assignee: Picker CorporationInventors: Zed J. Atlee, Roy F. Kasten, Jr.
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Patent number: 4164792Abstract: A device for tightening the waist of a garment comprising a sheath provided around the waist of a garment which has an opening near each end thereof and a pair of strings, each of which is secured to one end of said sheath and is passed through the sheath and drawn out of the opening at the other end thereof is disclosed.Type: GrantFiled: July 25, 1977Date of Patent: August 21, 1979Inventor: Mitsuru Ito
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Patent number: 4164793Abstract: A flexible implant for replacement of the lunate bone of the wrist includes a one-piece body of resilient material defining a planar triquetrum face having a general U-shape in plan and further including a stabilizing stem extending outwardly from and perpendicular to the planar triquetrum face and a planar scaphoid face having a generally U-shape in plan extending at an angle with respect to the triquetrum face. The body further includes a cupped, concave, smooth distal surface adapted to articulate with the head of the capitate bone. The body defines a proximal surface having a smooth convex shape and extending between the proximal edges of the triquetrum and scaphoid faces. Generally planar palmar and dorsal surfaces extend between the dorsal lateral edges and the palmar lateral edges of the triquetrum and scaphoid faces.Type: GrantFiled: April 26, 1978Date of Patent: August 21, 1979Inventor: Alfred B. Swanson
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Patent number: 4164794Abstract: Prosthetic devices, such as orthopedic, dental and maxillofacial prostheses, are provided which are composed of an inner load bearing, functional component and an outer foamed or sintered porous coating of selected bioengineering thermoplastics. The bioengineering thermoplastic coating is provided in regions where long-term bone fixation is desired by tissue ingrowth. The coatings offer substantial biomechanical advantages over any material system previously reported. Also provided, are anatomically shaped devices comprised totally of bioengineering thermoplastics with select porous areas; these devices include bone gap bridges, bone caps, and alveolar ridge augmentation implants.Type: GrantFiled: April 14, 1977Date of Patent: August 21, 1979Assignee: Union Carbide CorporationInventors: Myron Spector, George T. Kwiatkowski, Walter H. Smarock, Michael J. Michno, Jr.
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Patent number: 4164795Abstract: The urinal has an inlet tube which, when properly assembled on its container, will not discharge the contents of the container. The inlet tube is removable for emptying and washing the container and a special form of connection is provided to insure that the tube is always replaced in the container in the proper manner to prevent spillage.Type: GrantFiled: July 28, 1978Date of Patent: August 21, 1979Inventor: Ernest K. Johnson
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Patent number: 4164796Abstract: A sink strainer assembly includes a hollow strainer body, a molded hollow plastic nipple which is a force fit within a lower hub section of the strainer body and a filtering screen assembled to the nipple in the hub section of the strainer body to prevent oversized materials from passing into drainage conduits connected to the strainer assembly. In the method of this invention, the strainer body is formed from stainless strip by a deep drawing operation, and the filtering screen is cut, stamped or otherwise separated from the base of the lower hub section. This separation can occur as part of a progressive die or as a separate operation.Type: GrantFiled: October 5, 1977Date of Patent: August 21, 1979Inventor: Lawrence Sakow
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Patent number: 4164797Abstract: A mattress construction comprising a filler with a surrounding mattress cover. The cover defines an opening along at least one of its ends, and a zipper is provided for closing the opening. A fabric section of the cover is positioned in overlapping relationship with one end of the zipper. This section defines a pocket for receipt of the zipper closure when the zipper is closed to thereby reduce the likelihood that the zipper will be opened during use of the mattress.Type: GrantFiled: April 6, 1978Date of Patent: August 21, 1979Assignee: The United States Bedding CompanyInventor: Gerald A. Golembeck
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Patent number: 4164798Abstract: The present invention comprises a seat cushion for preventing excessive pressure on the coccyx of a person sitting on the cushion; the cushion is made from a seat pad having a casing with a resilient cushioning element positioned within; the cushioning element has a recessed portion in the rear center so as to be in underlying relationship to the coccyx; the casing is free of a recessed portion and provides nominal support for the coccyx.Type: GrantFiled: July 23, 1976Date of Patent: August 21, 1979Inventor: Joseph T. Weber
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Patent number: 4164799Abstract: The safety of a machine for cleaning tubes and pipes constructed so as to include an elongated cylinder, a piston located within the cylinder, a non-round piston rod attached to the piston so as to extend out of one end of the cylinder and hydraulic components for introducing a high pressure fluid into and out of the ends of the cylinder can be improved by providing a second cylinder which is located concentrically around the first cylinder. A discharge structure is attached to the second cylinder so as to be capable of venting or dissipating any fluid which may enter the second cylinder as a result of rupture of the first to the ambient surroundings. Preferably the discharge structure includes a pressure reducer such as an orifice and preferably the discharge structure is located so that any fluid discharged from it cannot cause damage.Type: GrantFiled: June 13, 1978Date of Patent: August 21, 1979Inventor: Kenneth Jai
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Patent number: 4164800Abstract: A combination mop and wringer comprising a handle and a replaceable strand type mop positioned at one end of the handle. A slide arm reciprocates relative to the handle from an initial position to a wringing position to push a pivotal, split ring member over the strand mop to wring out excess water. The slide arm reciprocates through a guide block having a configured opening to prevent twisting of the slide arm during movement. Reciprocation of the slide arm returns the split ring member to its initial position ahead of the strand mop. The split ring includes a pivotal connection to the slide arm and a flapper type closure to automatically complete the ring configuration prior to each mop wringing cycle. The slide arm may be provided with a locking detent suitable to releasably engage the guide block to retain the slide arm in its initial position.Type: GrantFiled: April 13, 1978Date of Patent: August 21, 1979Assignee: Quickie Manufacturing Corp.Inventor: Martin P. Strahs
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Patent number: 4164801Abstract: An ice scraper comprising a one-piece body defining a handle section, a downwardly curved intermediate section, and a blade region comprising a plurality of downwardly curved, independently flexible, resilient scraping fingers. In use, the scraping fingers bow or flex when scraping force is applied to ice to be removed, induce the formation of fractures in the ice, and thereafter resiliently return to their unflexed position, imparting force to fractured ice tending to throw it away from the surface to be scraped.The separable, independently flexible fingers enable the ice scraper to effectively conform to curved surfaces and avoid the possible incomplete cleaning action of said blade structures.Type: GrantFiled: November 2, 1977Date of Patent: August 21, 1979Assignee: Hopkins Manufacturing CorporationInventor: Robert R. Thomas
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Patent number: 4164802Abstract: A replaceable cartridge is detachably mounted on a rod which is detachably connected with a windshield wiper arm on a vehicle so as to place the cartridge alongside the wiper blade. The cartridge contains a detergent stick and is arranged to admit rain water when the vehicle is in motion with the wiper operating but shield the detergent stick from falling rain when the vehicle is standing still with the wiper at rest. A wick provides a slow release of dissolved detergent on the area of the windshield traversed by the oscillating wiper blade.Type: GrantFiled: September 8, 1978Date of Patent: August 21, 1979Assignee: Wiper-Mate, Inc.Inventor: Donald E. Rouse
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Patent number: 4164803Abstract: A convertible painting assembly includes a paint roller pan, the pan having a removable partition wall extending transversely between sump and trough portions therein. A removable paint transfer roller is rotatably mounted between the partition wall and the rear wall of the tray. Paint is transferred from the sump of the tray onto a paint pad which is supported by a novel pad suppport and handle assembly. With the transfer roller in place, the assembly can be used to apply paint to a painting pad. With the transfer roller and partition wall removed, the assembly can be used as a conventional roller pan.Type: GrantFiled: October 18, 1977Date of Patent: August 21, 1979Assignee: Adams Brush Manufacturing Co., Inc.Inventors: Adam Zurawin, Gaetano Ricciuti
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Patent number: 4164804Abstract: Latch for luminaire clamp band comprises hinged link member connected to a latch lever, and a channel-shaped spring catch attached to the link member for holding the link member in engagement with the latch hook.Type: GrantFiled: October 12, 1978Date of Patent: August 21, 1979Assignee: General Electric CompanyInventor: Thomas A. Fletcher
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Patent number: 4164805Abstract: An apparatus for dividing warps by means of leases, which is of the type having divider elements for the momentary edge warp end or thread and a feeder for the divided or separated threads for feeding such threads to tying elements. The divider elements separate the edge warp thread from the warp sheet in that the divider or separator elements, together with lease cords defining the lease following the separation of a thread, change their position relative to the warp sheet in such a manner that all threads following the edge warp thread are displaced away therefrom and the feeder only then moves through the complete path needed for the infeed of the separated thread to the tying elements when in fact a thread has been separated. Means ensure that the divider elements only then change their position relative to the warp sheet when the feeder has moved theough its complete path.Type: GrantFiled: March 16, 1978Date of Patent: August 21, 1979Assignee: Zellweger Uster Ltd.Inventor: Alois Altenweger
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Patent number: 4164806Abstract: A metallic end bead is attached to the main wire of a musical instrument string by providing the bead in apertured form, roughening or otherwise irregularizing its hole surface and then plastically deforming it to press its hole surface irregularities into the surface of a wire inserted through the hole. The bead has tapered end portions to inhibit cracking during the deforming step. The process is one lending itself to economical mass production of beaded strings and the beads may be provided with either a matte or polished finish on their visible surfaces.Type: GrantFiled: October 18, 1977Date of Patent: August 21, 1979Assignee: National Musical String CompanyInventors: W. Norman Stone, Robert A. Allmansberger
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Patent number: 4164807Abstract: A method of coldworking a hole through a work piece which includes placing a seamless tubular member within the hole with a prescribed hoop strength to allow the tubular member to be expanded and prescribed column strength which prevents axial movement of the outside of the tubular member as the tubular member is expanded, holding the tubular member within the hole so that the tubular member is substantially axially fixed with respect to the hole, and passing an expansion mandrel through the inside of the seamless tubular member to radially and circumferentially expand the tubular member sufficiently to induce a compressive stress gradient of a prescribed magnitude in the material of the work piece substantially uniformly about the entire inside surface of the hole so as to increase the fatigue strength thereof.Type: GrantFiled: March 19, 1976Date of Patent: August 21, 1979Inventor: John O. King, Jr.
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Patent number: 4164808Abstract: Apparatus for high-speed production of sets of accurately and identically sized insulated wire leads having wire terminals at the lead ends comprises: a feed mechanism including counter-reciprocating wire feed clamps for repeatedly drawing a plurality of separate strands of insulated wire simultaneously from a plurality of wire reels; a mechanism for simultaneously straightening and arranging the strands as they are drawn therethrough in parallel spaced apart relationship in a common generally horizontal plane; a severing mechanism for repeatedly severing sets of wire segments of predetermined length simultaneously from the strands; conveyor clamps for releasably gripping successive sets of wire segments received from the feed clamps; conveyor means for advancing the conveyor clamps so that the ends of the wire segments in the sets pass through processing mechanisms, and conveyor clamp actuator mechanisms for causing the conveyor clamps to initially grip sets of wire segments for conveyance and to subsequentlType: GrantFiled: June 5, 1978Date of Patent: August 21, 1979Assignee: Artos Engineering CompanyInventors: Ragnar Gudmestad, Gerald E. Blaha
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Patent number: 4164809Abstract: In a machine tool with an automatic tool change apparatus, a tool storage magazine for removably storing a plurality of tools is installed, extending within a column which slidably supports a spindle head. The column is formed with an opening. Means are provided for moving a tool from the magazine outside the column, through the opening therein, for effecting a tool change operation.Type: GrantFiled: December 6, 1977Date of Patent: August 21, 1979Assignee: Toyoda-Koki Kabushiki-KaishaInventors: Akira Tsuboi, Tetsuro Yamakage
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Patent number: 4164810Abstract: A tool storage drum which is adapted to receive and store a plurality of toolholders is rotatably mounted on top of the upright of a horizontal machining center behind the spindle thereof. A tool changer carriage carrying a tool change arm is pivotally mounted on the upright above the spindle and is pivotable between a parked positon in which an end of the tool changer arm is adjacent to the tool storage drum and an exchange position in which an end of the tool changer arm is adjacent to the spindle. The tool changer arm is slidably mounted on the carriage for movement between an extended and a retracted position to remove toolholders from their sockets or insert them therein and is rotatable through 180.degree. to interchange its ends for the purpose of exchanging a tool in the spindle for a tool previously removed from the tool storage drum.Type: GrantFiled: December 15, 1977Date of Patent: August 21, 1979Assignee: Kearney & Trecker CorporationInventors: Charles B. Sipek, Richard Johnstone, Russell B. Clegg
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Patent number: 4164811Abstract: A semiconductor component with electric contacts is formed which includes a semiconductor body having metal contact layers formed in ohmic contact with at least two side surfaces thereof. In the process of making the component, a layer sequence is made including two layers formed of thermoplastic material and an intermediate layer of conductive material sandwiched between the two thermoplastic layers. In the process the temperature of the semiconductor body is raised to soften the thermoplastic material and the semiconductor body with its metal contacts is pressed through one of the thermoplastic layers, through the intermediate conductive layer to rupture the same and divide it into two parts and partially into the other thermoplastic layer. The intermediate layer is now composed of two parts, each part being conductively in contact with one of the metal contacts on the side surfaces of the semiconductor body.Type: GrantFiled: February 25, 1977Date of Patent: August 21, 1979Assignee: Siemens AktiengesellschaftInventor: Walter Heywang
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Patent number: 4164812Abstract: A termination tool is disclosed for assembling electrical cables, such as ribbon cables or the like, to an electrical connector which has receptacle means for receiving a cable in electrical termination with conductive contacts on the connector. The tool includes a base having a locator portion for properly locating a connector in position for receiving an electrical cable. A pair of spaced opposed clamping jaws are pivotally mounted on the base on opposite sides of the connector locator for movement toward and away from each other to engage a properly positioned connector to hold the connector in position during a termination operation. The clamping jaws are spring loaded and biased outwardly toward inoperative positions whereby a connector can be easily located therebetween. A reciprocally mounted stuffer means is mounted on the tool for movement toward and away from the base and locator means to drive a cable into the receptacle means of the connector.Type: GrantFiled: September 11, 1978Date of Patent: August 21, 1979Assignee: Bunker Ramo CorporationInventor: Joseph Dragisic
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Patent number: 4164813Abstract: An electrically powered knife has a handle with projecting removable knifeblades driven from a drive unit containing an electric motor, the drive unit being readily disconnectable from the handle so that this can be cleaned without risk of damage to the motor. A switch controlling motor operation is located in the drive unit but is operated from the handle by a mechanical link or a Bowden cable extending from a push button to an end surface of the handle to engage a switch member at an adjacent surface of the drive unit.Type: GrantFiled: February 3, 1978Date of Patent: August 21, 1979Assignee: Ritterwerk GmbHInventors: Karl Dittert, Hans W. Hartkorn
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Patent number: 4164814Abstract: A personal dental care device including a dentist mirror and a flat, stiff tooth scraper projecting substantially perpendicular to the mirror, located at the edge of the mirror and either fixed on the mirror frame or rotatably positionable around the periphery of the mirror. There are several embodiments for mounting the tooth scraper adjacent the mirror.Type: GrantFiled: July 28, 1977Date of Patent: August 21, 1979Inventor: Bernt Klostermark
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Patent number: 4164815Abstract: A device for measuring the human foot comprises: (a) at least one element consisting of a supporting surface for the bottom of the heel and a stop for the back of the heel; and (b) a graduated tape connected to the above element and surrounding the foot in an area passing through the rear end of the heel-bone and through the joint between the ankle bone and the scaphoid bone, the free end of the tape sliding in a passage and emerging from the device so that it can be grasped. This measuring device makes it possible to determine the type of boot best suited to the foot measured.Type: GrantFiled: May 5, 1977Date of Patent: August 21, 1979Assignee: Establissements Francois Salomon et FilsInventor: Georges P. J. Salomon
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Patent number: 4164816Abstract: A device for electronically indicating the measured distance between two points. A flexible tape retained in coiled fashion in a housing is extended therefrom between the two points to be measured. A Moire interference pattern is produced by movement of the tape having a first screen located thereon; the first screen moves below a second screen mounted in the housing. The Moire interference pattern is opto-electrically read and the length measured is digitally displayed.Type: GrantFiled: October 11, 1977Date of Patent: August 21, 1979Inventor: Lars A. Bergkvist
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Patent number: 4164817Abstract: A conduit bending level comprising a body of molded resilient material which includes a plurality of progressively tapering coaxially stepped frustoconical body portions each having an outer surface adapted to be received by force-fit into the open end of a conduit of corresponding nominal inside diameter. A spirit level is carried centrally of the body at the wide end thereof perpendicularly of the body axis for indicating orientation of the conduit end during a conduit bending operation.Type: GrantFiled: May 4, 1978Date of Patent: August 21, 1979Assignee: JDS Products, Inc.Inventor: Thomas G. Walker
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Patent number: 4164818Abstract: A method for preventing the surface of a hydrogel of a water-soluble acrylamide-type polymer from being tacky, which comprises coating the surface of the hydrogel with at least one of a higher fatty acid or an alkali metal salt thereof.Type: GrantFiled: October 20, 1977Date of Patent: August 21, 1979Assignees: Nitto Chemical Industry Co., Ltd., Mitsubishi Rayon Co., Ltd.Inventors: Iwao Ohshima, Yukio Shibuya, Hisao Otani
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Patent number: 4164819Abstract: In an oven for drying paints on metal strips or bands travelling continuously therethrough, several incinerators are mounted directly on the oven, and an external incinerator is also provided for incinerating the gases released during the drying operation, each incinerator receiving the same mixture to be incinerated.Type: GrantFiled: November 1, 1977Date of Patent: August 21, 1979Assignee: Heurtey MetallurgieInventor: Roger Devillard