Breaking Through Weakened Portion Patents (Class 29/413)
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Patent number: 6088991Abstract: A method of using a support unit for providing a plurality of sub-units, each of the sub-units adapted to hold construction structures such as reinforcing mats off of the ground or form is comprised of a body member having at least one set of at least one slit along the body for providing a weakened area on the body. An opening is located one either side of each of the at least one slit. Sub-units are broken off from the body member and the sub-unit is used to hold the construction structures. Each sub-unit can be secured to the construction structure via the openings.Type: GrantFiled: December 7, 1999Date of Patent: July 18, 2000Inventor: Namon A. Nassef
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Patent number: 6035528Abstract: A method of manufacturing an electronic component includes forming a slit in a connecting electrode located on the surface of a mother substrate such that the slit extends in a direction intersecting a cutting line, and cutting the mother substrate along the cutting line while cutting the connecting electrode having the slit. The connecting electrode is thereby reliably exposed on two opposing cut surfaces, and the reliability of external connection of the electronic component is improved.Type: GrantFiled: June 10, 1998Date of Patent: March 14, 2000Assignee: Murata Manufacturing Co., Ltd.Inventors: Toshiya Sasaki, Kazuyoshi Uchiyama, Masahiko Kawaguchi, Katsuhiro Misaki, Katsuji Matsuta
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Patent number: 6028489Abstract: A modular high-frequency oscillator structure utilizes a master circuit board to form a plurality of oscillator units. The master circuit board has an upper, middle and lower copper foil layer. The upper copper foil layer has a plurality of component circuit patterns and a plurality of positive voltage, ground and signal regulation circuit patterns. The middle copper foil layer has a plurality of power transfer and ground transfer circuit patterns. The lower copper foil layer has a large common ground circuit pattern. The master circuit board is etched in such a manner that the upper and lower copper foil layers are cut through to isolate each oscillator unit and the middle copper foil layer remains uncut.Type: GrantFiled: December 18, 1998Date of Patent: February 22, 2000Assignee: Chung-Shan Institute of Science and TechnologyInventors: Shing-Yeu Juang, Tseng-Hsin Chiu, Wen-Yuh Liao
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Patent number: 6023841Abstract: The present invention relates to a manufacturing procedure for printed circuit boards. It is directed to those printed circuit boards which utilize one or more power devices. There is a printed circuit board having one or more removable regions, each removably joined thereto by means of a boundary which is perforated, scored, formed with a reduced material thickness, or otherwise rendered into a breakaway region. Each removable or breakaway region has one or more fixturing holes. There is a temporary fastener and a mating fastener for each of said fixturing holes, one or more power devices, and at least one heat sink having a mounting hole for each of said fixturing holes. The position of each mounting hole on said heat sink is related to the position of a corresponding fixturing hole on a removable region of said printed circuit board. Thus, when a power device is affixed to a removable region, the mounting hole of said power device will align with the respective mounting hole of the heat sink.Type: GrantFiled: May 6, 1998Date of Patent: February 15, 2000Inventor: James A. Concorso
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Patent number: 6004214Abstract: A method of forming an apparatus having a captured washer includes the step of forming a shaft with a first end, a second end, a shaft diameter, and an axis. A stop element is provided on the shaft. An integral washer is formed on the shaft spaced from the stop element. The washer has a thickness and a diameter greater than the shaft diameter. The washer extends generally perpendicular to and radially outward from the shaft. The washer has a first surface facing the stop element and opposite surface facing opposite the first surface. A button is formed on and extends axially from the washer opposite. The button has a diameter greater than the shaft diameter and less than the washer diameter. A groove is formed into the first surface of the washer and defines a washer opening having an inside diameter less than the button diameter. The groove is formed so that the washer remains attached to the button by a material bridge extending between the button and.Type: GrantFiled: August 20, 1998Date of Patent: December 21, 1999Assignee: Cobra Metal Works Corp.Inventor: Anton J. Hirsch
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Patent number: 5953862Abstract: A plastic shim or other work piece useful in the construction industry is provided and is an elongated tapered hard plastic body incorporating qualities of a shim lacking in wooden shims. Each shim has transverse breakable lines so that segments can be broken off to adjust its length. For handling, a plurality of such shims are molded in a sheet with adjacent shims being spaced along their thinner sections but separably joined by longitudinal, manually breakable lines extending along their thicker sections, whereby the shims can be detached from the sheet either individually or in multiples. The shims have pockets defining nailing portions of reduced thickness which minimize the grasp of nails by the shim and allow removal of nails without damage to the shim or adjacent wood and etching to avoid uncontrolled slippage.Type: GrantFiled: February 4, 1997Date of Patent: September 21, 1999Assignee: EZ-SHIN, INC., a California corporationInventors: Levitt D. Earhart, Robert C. Hawley, Joseph S. Suiter, deceased
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Patent number: 5884391Abstract: An electrical device comprising a resistive element having a first electrode in electrical contact with the top surface of the resistive element and a second electrode in electrical contact with the bottom surface of the resistive element. An insulating layer is formed on the first and second electrodes. A portion of the insulating layer is removed from the first and second electrodes to form first and second contact points. A conductive layer is formed on the insulating layer and makes electrical contact with the first and second electrodes at the contact points. The conductive layer has portions removed to form first and second end terminations separated by electrically non-conductive gaps. The wrap-around configuration of the device allows for an electrical connection to be made to both electrodes from the same side of the electrical device.Type: GrantFiled: June 30, 1997Date of Patent: March 23, 1999Assignee: Littelfuse, Inc.Inventors: Katherine M. McGuire, Honorio Luciano
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Patent number: 5831834Abstract: A battery is attached to a circuit board. The circuit board is weakened around a localized area around the battery to allow detachment of the localized area including the battery.Type: GrantFiled: October 26, 1995Date of Patent: November 3, 1998Assignee: Intel CorporationInventor: David E. Landolf
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Patent number: 5799390Abstract: A windshield wiper blade assembly providing having an electrical heating mechanism along the length of a wiper blade. The assembly can be trimmed to a length appropriate for a particular automobile.Type: GrantFiled: May 21, 1997Date of Patent: September 1, 1998Inventors: Frank Dileo, Peter Michalos
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Patent number: 5699607Abstract: An electrical device comprising a resistive element having a first electrode in electrical contact with the top surface of the resistive element and a second electrode in electrical contact with the bottom surface of the resistive element. An insulating layer is formed on the first and second electrodes. A portion of the insulating layer is removed from the first and second electrodes to form first and second contact points. A conductive layer is formed on the insulating layer and makes electrical contact with the first and second electrodes at the contact points. The conductive layer has portions removed to form first and second end terminations separated by electrically non-conductive gaps. The wrap-around configuration of the device allows for an electrical connection to be made to both electrodes from the same side of the electrical device.Type: GrantFiled: May 3, 1996Date of Patent: December 23, 1997Assignee: Littelfuse, Inc.Inventors: Katherine M. McGuire, Mike A. Ward
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Patent number: 5679232Abstract: This invention relates to a process for making metal wire, comprising: (A) forming metal foil; (B) cutting said foil to form at least one strand of metal wire; and (C) shaping said strand of wire to provide said strand with desired cross-sectional shape and size. This process is particularly suitable for making copper wire, especially copper wire having a very thin diameter (e.g., about 0.0002 to about 0.02 inch).Type: GrantFiled: April 18, 1996Date of Patent: October 21, 1997Assignee: ElectroCopper Products LimitedInventors: Robert J. Fedor, Peter Peckham, Sharon K. Young, Michael A. Eamon, Roger N. Wright, Stephen J. Kohut, Craig J. Hasegawa, Susan S. Enos, Robert D. DeWitt
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Patent number: 5588210Abstract: A simplified method of manufacturing and assembling a unitized seal uses only three basic components, and no steps involving direct molding of elastomer to casings, or gluing or otherwise securing elastomer to the casings. Two simple, inner and outer casings have axially opposed, radially overlapping annular webs, and radially opposed, oppositely axially extending seal walls. An integral seal unit has coplanar, inner and outer disks joined at a frangible central seam. Each disk has a pair of converging seal lips disposed symmetrically to either sid of a respective seal wall. When the unit is squeezed axially between the casings during assembly, the seal walls enter between the seal lips, bottom out on the disks, break the seam, and embed the disks automatically into the casings, with no other assembly steps needed.Type: GrantFiled: August 5, 1994Date of Patent: December 31, 1996Assignee: General Motors CorporationInventor: Frederick E. Lederman
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Patent number: 5586380Abstract: A method for making mated molded parts in which the assembly has first and second parts with precisely mating surfaces. The first part is formed by molding, casting, or the like such that the mating surface of the first part is formed with at least one protrusion. The second part is formed in place against the first part such precisely mating surfaces are formed with the second part enveloping the protrusion. The two parts thus formed are forced apart from each other. The protrusion may be formed with a head which interlocks with the second part. When the parts are separated, the head breaks from the protrusion. In a particular embodiment, a bearing cap is disclosed having a central opening for the passage of a shaft.Type: GrantFiled: October 18, 1994Date of Patent: December 24, 1996Assignee: Nelson Metal Products CorporationInventor: Dennis S. Shimmell
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Patent number: 5581980Abstract: A process for producing a stick of adhesive, having a rotatable base part with rotary spindle, which spindle is engaged in a holding element for the stick material (plunger, small basket, anchoring disc), which holding element is fitted into a sleeve surrounding the stick material. The rotary spindle, provides controlling movement of the stick-shaped adhesive material either up or down. The sleeve (2) together with the plunger (1) is formed in a one-part injection molding which is joined, via predetermined breaking points (3), to the sleeve wall. For the assembly, the base part, with rotary spindle is pushed through a centered recess in the plunger until the lower periphery of the sleeve comes to rest against the upper part of the base part.Type: GrantFiled: June 29, 1994Date of Patent: December 10, 1996Assignee: UHU GmbHInventor: Hans Halm
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Patent number: 5551782Abstract: A component made from a preform made of a first material and having a bearing seat defining a bearing seat surface, and a method of producing the component. The component includes a bearing cap portion, and a remainder portion split from the bearing cap portion and adapted to mate therewith. The method comprises the step of coating the bearing seat surface of the preform with a second material different from the first material for providing a bearing layer made of the second material on the bearing seat surface, the bearing layer having a running face. The step of coating includes the step of thermal spraying the second material on the bearing seat surface. The preform is separated into the bearing cap portion and the remainder portion. The bearing layer is split by fracture separation at a separation region of the bearing layer into a bearing cap bearing layer portion corresponding to the bearing cap portion, and a remainder bearing layer portion corresponding to the remainder portion.Type: GrantFiled: October 4, 1994Date of Patent: September 3, 1996Assignee: Sintermetallwerk Krebsoge GmbHInventors: Volker Arnhold, Uwe Eilrich, Harald Neubert
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Patent number: 5507093Abstract: A forged-steel connecting rod blank is formed with intentional-break zones extending over one or both of the broad crankshaft-eye surfaces of the connecting rod or as crevices formed radially in the inner surface of the large-diameter bore of the eye and running from an upper edge to a web of the material which is ultimately punched out.Type: GrantFiled: April 4, 1994Date of Patent: April 16, 1996Assignee: Hammerwerk Schulte GmbH & Co. KGInventors: Horst Wittenstein, Hendrik Muntinga
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Patent number: 5475922Abstract: A contact pin includes: a pin terminal secured to a stationary base art by press-fitting a press-fitted part into the stationary base part, the pin terminal projecting from the stationary base part and being joined to the board; a contact part inserted into a contact pin through-hole of a movable lock part so that a plug pin terminal is fitted into the contact part; and an auxiliary plate 6 reinforcing the press-fitted part, engaged with the movable lock part and transmitting a force caused by a movement of the movable lock part to the press-fitted part. A connector constructed in the described manner includes a plurality of above-mentioned contact pins.Type: GrantFiled: September 15, 1994Date of Patent: December 19, 1995Assignee: Fujitsu Ltd.Inventors: Akira Tamura, Hidehisa Sakai, Mikio Nishihara, Kyoichiro Kawano
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Patent number: 5472126Abstract: Method and apparatus is disclosed for severing flat tubing. A length of tubing is gripped at longitudinally spaced apart locations and the tubing is deeply scored by rapidly rotating circular cutters which are moved across the faces of the tubing at a predetermined linear velocity. The angular velocity of the circular cutters greatly exceeds the linear velocity of traversal. An axial force is applied to separate the tubing.Type: GrantFiled: December 16, 1993Date of Patent: December 5, 1995Assignee: Crown Unlimited Machine, Inc.Inventors: Steven L. Stroup, Sr., Steven L. Stroup, II
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Patent number: 5450668Abstract: Method and apparatus for separating thin-walled flat metal tubing are disclosed. The tubing has flat upper and lower walls joined by end walls. The tubing is partially severed by providing relative movement between the tubing and opposed cutting blades having straight or slightly curved cutting edges. The relative movement is transverse to the longitudinal axis of the tubing, and the straight slicing edges, or the chords of curved slicing blades, form a small acute angle with respect to the flat faces of the tubing. The tubing is completely severed by applying an axial force to the tubing. Pressing heads follow the slicing blades to press any burrs back into the tubing.Type: GrantFiled: December 21, 1993Date of Patent: September 19, 1995Assignee: Crown Unlimited Machine, Inc.Inventor: Steven L. Stroup, Sr.
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Patent number: 5413659Abstract: The present invention provides metal/polymer composites including a plastic substrate having longitudinally extending conductive members, adapted to make bonded electrical connections to an array of closely spaced conductive terminal pads. In general terms, the metal/polymer composites include a thin, flexible sheet-like plastic substrate having a plurality of longitudinally extending, regularly spaced, metal pathways or members on one major surface thereof.Type: GrantFiled: September 30, 1993Date of Patent: May 9, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: David C. Koskenmaki, Clyde D. Calhoun
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Patent number: 5402571Abstract: A method of making a heat exchanger including header pipes, flat tubes extending between the header pipes and fin units extending between the flat tubes. The header pipes include a plurality of holes on one side thereof for accepting the flat tubes. On the opposite side of the header pipes is at least one slit in which a partition plate is inserted. During the formation of the header pipe, a pair of projections are formed on the ends of the slit. After the partition plate is inserted into the header pipe, the projections are bent until they engage the partition plate thereby fixedly securing the partition plate within the header pipe.Type: GrantFiled: June 6, 1994Date of Patent: April 4, 1995Assignee: Sanden CorporationInventors: Kazuki Hosoya, Hirotaka Kado
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Patent number: 5400631Abstract: Method to obtain in the cold state single finished sections (11) from substantially cold single multi-section elements (12) produced by hot rolling, extrusion or drawing, the single multi-section element (12) consisting of at least two finished sections (11) (angle irons, angle irons with unequal sides, Z-sections, T-sections, flats, etc.) positioned side by side and connected together lengthwise along the terminal part of an edge, the sections (11) being separated by a web (21), the cold single multi-section element (12) being positioned and undergoing the splitting of the web (21) from the sections (11), the edges of the finished sections (11) facing the web (21) after splitting being subjected to a re-gauging operation, the finished sections (11) being then straightened and made linear at the same time.Type: GrantFiled: November 5, 1993Date of Patent: March 28, 1995Assignee: Danieli & Officine Meccaniche S.p.A.Inventors: Gianpietro Benedetti, Alfredo Polino
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Patent number: 5388745Abstract: Method and apparatus for separating thin-walled flat metal tubing are disclosed. The tubing has flat upper and lower walls joined by end walls. The tubing is partially severed by providing relative movement between the tubing and opposed cutting blades having straight cutting edges. The relative movement is transverse to the longitudinal axis of the tubing, and the straight cutting edges of the blades form a small acute angle with respect to the flat faces of the tubing. The tubing is completely severed by applying an axial force to the tubing.Type: GrantFiled: January 18, 1994Date of Patent: February 14, 1995Inventor: Steven L. Stroup, Sr.
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Patent number: 5386623Abstract: A multi-chip module and a process for manufacturing the same comprises at least first and second semiconductor chips each formed with a plurality of semiconductor elements on their circuit forming surfaces and having different functions, mounted on a substrate. An insulating film is formed over the circuit forming surfaces of the first and second semiconductor chips. First and second connecting holes are formed in the insulating film over the circuit forming surfaces of the first and second semiconductor chips, respectively. A wiring layer is formed across the first and second connection holes so as to connect the first and second semiconductor chips electrically.Type: GrantFiled: November 7, 1991Date of Patent: February 7, 1995Assignees: Hitachi, Ltd., Hitachi Computer Engineering Co., Ltd.Inventors: Yoshihiko Okamoto, Hideyuki Yamada
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Patent number: 5355569Abstract: A method for producing capacitive sensors which is used in particular for the parallel production of capacitive sensors with exactly defined stray capacitance. For this purpose, troughs (15, 16, 17) are cut along or parallel to the splitting lines (6), so that adjustment errors in the position of the cut, during separation of the sensors, and variations in the cut width have no effect on the stray capacitance.Type: GrantFiled: September 25, 1992Date of Patent: October 18, 1994Assignee: Robert Bosch GmbHInventors: Jiri Marek, Helmut Baumann, Guenther Findler, Michael Offenberg, Martin Willmann
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Patent number: 5347699Abstract: A device for partially shearing single or multiple sheets of material comprising a base having a recess and a lower blade fixed in the recess. A pair of movable blades having opposed ends are pivotally attached to the base at one end. A lost-motion connecting link connects the free ends of the pair of movable blades together and is connected to a hydraulic piston which moves the link a limited distance towards the base, thereby to rotate both movable blades relative to the fixed blade with a scissors-like action. When the pair of blades is moved towards the lower blade, the material is cut inward from both sides or edges of the material, leaving an inner uncut portion of material having a width which corresponds to the stroke of the movable blades.Type: GrantFiled: December 11, 1992Date of Patent: September 20, 1994Assignee: ABB Power T&D Company Inc.Inventor: Thomas A. Ward
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Patent number: 5343602Abstract: A process for separating a glass-silicon-glass layer package wherein the glass-silicon-glass layer package is produced at a minimum process cost and is constructed from a plurality of acceleration sensors constructed with micro-mechanical structure techniques. At the same time, dirt is to be prevented from entering the acceleration sensors and the connection contacts are to be freed automatically. Separation is effected substantially by crosswise cutting and subsequent breaking. In order to prevent an "opening" of the acceleration sensors when cutting in one direction, i.e. transversely relative to the flexural resonators, and to achieve a defined breaking, one glass disk is cut until a predetermined breaking point is reached and the other glass disk is severed in a parallel plane. An intermediate layer which surrounds the connection in a U-shaped manner, serves as a blocking layer arranged between the two dividing planes and impedes a bonding of the glass disk and the silicon disk.Type: GrantFiled: January 14, 1993Date of Patent: September 6, 1994Assignee: Mannesmann Kienlze GmbHInventor: Horst Plankenhorn
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Patent number: 5320200Abstract: A friction pad includes a flat back plate, a friction member fixed to one surface of the back plate, a shim in the form of a thin plate attached to the other surface of the back plate, and a viscous fluid applied between the back plate and the shim. The shim is formed with semi-circular notches in the outer edge and inner edge thereof with respect to the radial direction of the disc, and the notch in the outer edge and the notch in the inner edge have the same curvature.Type: GrantFiled: March 16, 1993Date of Patent: June 14, 1994Assignee: Tokico Ltd.Inventor: Junichi Hashimoto
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Patent number: 5310104Abstract: The invention discloses a novel method and apparatus for cleaving semiconductor wafers into individual die which comprises mounting the wafer upon an adherent resilient air impermeable membrane while the latter is flat. Cleaving is achieved by using air pressure to inflate the membrane to cause bending and tensile stresses on the wafer brought about by its adhesion to the inflating membrane. These stresses cleave the wafer along the scribe marks to form individual die. The die may be easily removed by the application of a vacuum to the underside of the membrane which draws it against a perforated undulatory grid dimensioned according to the die dimensions to reduce the surface contact. This reduces adhesion of the die to the membrane to facilitate a low stress pick-off of the die.Type: GrantFiled: December 16, 1991Date of Patent: May 10, 1994Assignee: General Electric CompanyInventors: Simon A. Zaidel, Walter Fabian, Brian G. Baxter, Albert J. Manoni
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Patent number: 5274915Abstract: The invention has been achieved to solve the problem mentioned above. The object of the invention is to provide a novel method of manufacturing a printed wiring board by allowing manufacturers to provide a slit and perforations on the substrate without causing even the slightest crack to be generated in the course of manufacturing the printed wiring board.In the course of manufacturing printed wiring boards splittable across a slit and perforations,the method embodied by the invention executes those sequential steps including the following; provision of thickness adjusting film for specific regions adjacent to the slit and perforations; adjustment of the thickness of a main substrate and a splittable substrate which is splittable by means of the slit and the perforations; and formation of the slit and the perforations by applying a pressing and punching process.Type: GrantFiled: June 18, 1991Date of Patent: January 4, 1994Assignee: Nippon CMK Corp.Inventors: Yasunori Matsushima, Kunio Nishi
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Patent number: 5249345Abstract: A method of severing an elongated flat metal tube of the type including upper and lower flat horizontal walls, vertical edge walls and vertical partition walls spaced between the edge walls and interconnecting the upper and lower walls to divide the tube into a series of parallel, generally rectangular, longitudinally extending passages. The tube is cut by forming transverse kerfs in the upper and lower walls of the tube and thereafter exerting a relative pulling force on the tube sections on opposite sides of the plane in which the kerfs have been formed to tear apart the remaining tube material at the severing plane and sever the tube. The kerfs are formed in a two-step broaching operation comprising a first cut in which a narrow generally V-shaped narrow angle kerf is formed and a second cut in which the kerf is widened to provide a wide, generally V-shaped, wide angle kerf.Type: GrantFiled: February 10, 1992Date of Patent: October 5, 1993Assignee: Brazeway, Inc.Inventors: Milan Virsik, Henry McCarbery
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Patent number: 5245738Abstract: A non-explosive separation device for releasably holding together components of equipment or apparatus which are to be separated under controlled conditions. The separation device and method of operation includes a retaining element having a strain concentrated portion which completely cleaves when strained at a predetermined magnitude. Strain is applied to the retaining element by an actuating element which is comprised of a solid state phase change material having a shape memory. The actuating element is deformed to an armed shape at a temperature below the phase-change transition temperature. The device is activated by heating the actuating element through its transition temperature so that it recovers toward its memory shape. The retaining element is strained beyond its ultimate strength so that it cleaves at the strain concentrated portion.Type: GrantFiled: August 27, 1991Date of Patent: September 21, 1993Assignee: TiNi Alloy CompanyInventor: Alfred D. Johnson
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Patent number: 5237732Abstract: A hand-held breaker tool for adjusting the length of the side rails of frames that support hanging file folders in a drawer. The tool is used to break off an unwanted excess length portion of the side rails A method of adjusting and assembling a frame for holding and supporting hanging file folders and inserting the frame into a drawer of a desk or file cabinet.Type: GrantFiled: April 8, 1992Date of Patent: August 24, 1993Assignee: Pelikan, Inc.Inventors: Donald J. Polak, Kenneth E. McDonald
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Patent number: 5235742Abstract: A ribbon conductor set and related method of production and installation are provided for electrically interconnecting components in an implantable medical device, such as a heart pacemaker unit or the like. The ribbon conductor set is formed by die cutting and/or stamping a thin plate of conductive material to define a plurality of conductor ribbons supported from a frame. The ribbon set and supporting frame are shaped for seated placement into a fixture to orient the conductor ribbons in predetermined array to extend between electrical components on the fixture, such as between connector blocks and feedthrough terminals of a heart pacemaker unit. The fixture thus supports the conductor ribbons for facilitated connection to the electrical components, such as by welding, after which the resultant subassembly may be further processed as by encapsulation within a cast epoxy head or the like.Type: GrantFiled: June 24, 1991Date of Patent: August 17, 1993Assignee: Siemens Pacesetter, Inc.Inventor: Andrew J. Szyszkowski
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Patent number: 5233754Abstract: A method for forming perforations on a printed circuit board by means of press-working is disclosed. The perforations are used to facilitate the separation of a mother portion from the supplementary portions of a printed circuit board. The method is characterized in that the surface area of one side or both sides of the printed circuit board to be perforated is coated with copper film prior to the formation of the perforations in order to prevent cracks from forming around the perforations.Type: GrantFiled: June 26, 1991Date of Patent: August 10, 1993Assignee: Nippon CMK Corp.Inventors: Satoshi Matsunaga, Hirokazu Toyoda
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Patent number: 5208979Abstract: A method of manufacturing a multiple part component such as a connecting rod by integrally forming the connecting rod in one piece, laser cutting a stress riser along a surface of the connecting rod characterized by a deep and narrow groove and applying a tension force to separate the connecting rod into two parts, a main body and a bearing cap.Type: GrantFiled: September 25, 1992Date of Patent: May 11, 1993Inventor: Howard Schmidt
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Patent number: 5201117Abstract: Flat tubing is fed from a continuous supply into an embossing station and then into a cutting station and is briefly stopped periodically for an operation in each station. The embossing station has embossing dies for forming a transverse groove in the tube where a cut is desired and for reducing the tube perimeter dimension adjacent the cut to a required size. At the cutting station grippers engage the tubing on either side of the groove and bend the tubing to separate it at the groove.Type: GrantFiled: November 4, 1991Date of Patent: April 13, 1993Assignee: General Motors CorporationInventor: William D. Wright
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Patent number: 5195237Abstract: A method and apparatus for interconnecting electronic circuits using nearly pure soft annealed gold mechanically compressed within through-plated holes. The invention has its application in attaching integrated circuit dice directly to circuit boards by ball bonding gold wires to the bonding pads of the integrated circuit dice in a substantially perpendicular relationship to the surfaces of the dice and inserting the gold leads into through-plated holes of circuit boards which provide an electrical and a mechanical connection once the leads are compressed within the through-plated holes. The present invention also finds its application in the interconnection of sandwiched circuit board assemblies where soft gold lead wires are inserted into axially aligned through-plated holes of the circuit boards and compressed so that the gold lead wires compress and buckle within the through-plated holes, forming an electrical connection between the circuit boards.Type: GrantFiled: December 24, 1991Date of Patent: March 23, 1993Assignee: Cray Computer CorporationInventors: Seymour R. Cray, Nicholas J. Krajewski
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Patent number: 5181306Abstract: The invention is directed to a method of making ring laser resonator blocks according to the sandwich principle. Channel and hollow chamber structures are machined into two plates of a multiple expansion of a resonator block. The structures in the blocks complement each other. The plates machined in this manner are placed one atop the other and positioned in correspondence to the structures and joined to each other and thereafter separated into individual resonator blocks.Type: GrantFiled: February 6, 1992Date of Patent: January 26, 1993Assignee: Carl-Zeiss-StiftungInventors: Arnold Guttner, Jobst Herrmann, Karl-H. Simon
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Patent number: 5142761Abstract: Reel leaf spring/cassette cover combinations are described, wherein the leaf spring is removably mounted on the cover. In a cam fit embodiment, the spring is held within opposing pairs of projections. In a press fit embodiment, the spring includes lateral pointed members, which are caught between parallel projecting members formed on the cover. A related method of assembly includes the steps of: forming a cassette cover to include a plurality of opposing projections; inserting a leaf spring against the cover at an angle between the projections; and rotating the leaf spring to be removably engaged by the projections. In an alternate embodiment, the leaf spring includes lateral pointed members and the spring is installed straight down, such that the pointed members catch the plurality of projections.Type: GrantFiled: November 21, 1990Date of Patent: September 1, 1992Assignee: Shape Inc.Inventors: Anthony L. Gelardi, Craig Lovecky, Alan Lowery, Robert Barstow
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Patent number: 5140745Abstract: During the manufacture of a printed circuit board, holes are drilled not only in accordance with a particular circuit board pattern, but also along the lines which will define edges of the board at the positions where traces are to appear. All of the holes are then plated through. The holes along the edges of the board are completely filled with solder. The board is then cut along the previously defined edge lines to cut the solder filled holes in half. This creates a trace and a solder reservoir along the edge of the board.Type: GrantFiled: July 23, 1990Date of Patent: August 25, 1992Inventor: Joseph A. McKenzie, Jr.
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Patent number: 5134765Abstract: A generally continuous strip of thermoplastic material is deformed into a desired preformed configuration, while retaining continuity with the generally continuous strip to form a chain of the configurations. The chain remains continuous with the generally continuous strip. End portions of the chain are severed so as to form a stack of preformed configurations to be used in the formation of a dispensing cartridge.Type: GrantFiled: March 26, 1991Date of Patent: August 4, 1992Assignee: Roberts Systems, Inc.Inventors: John T. Roberts, Claude E. Monsees, William Z. Vanhook
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Patent number: 5119555Abstract: A non-explosive separation device for releasably holding together components of equipment or apparatus which are to be separated under controlled conditions. The separation device and method of operation includes a retaining element having a strain concentrated portion which completely cleaves when strained at a predetermined magnitude. Strain is applied to the retaining element by an actuating element which is comprised of a solid state phase change material having a shape memory. The actuating element is deformed to an armed shape at a temperature below the phase-change transition temperature. The device is activated by heating the actuating element through its transition temperature so that it recovers toward its memory shape. The retaining element is strained beyond its ultimate strength so that it cleaves at the strain concentrated portion.Type: GrantFiled: October 2, 1990Date of Patent: June 9, 1992Assignee: TiNi Alloy CompanyInventor: Alfred D. Johnson
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Patent number: 5117949Abstract: A caliper type brake for braking a brake disc including a caliper having a recess in the caliper on one side of the disc, a piston mounted in the caliper on the other side of the disc and including a recess, each recess having one or more ribs forming two or more cavities in each recess and a brake pad mounted in each recess, each brake pad being formed with a number of frangible portions, which break on engagement with the ribs to separate the brake pads into separate sections corresponding to the number of cavities in the recesses.Type: GrantFiled: September 21, 1990Date of Patent: June 2, 1992Assignee: Hayes Industrial Brake, Inc.Inventors: James A. Buckley, George H. Hinkens, James J. Dimsey
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Patent number: 5105521Abstract: A modular headliner includes an assist strap for mounting to the modular headliner to the vehicle body structure and includes an assist strap fastening means. The fastening means extends to engage a vehicle body adjacent an opening defined by a vehicle body structure. A mandrel may then be inserted between the fastening means to lock the fastening means to the vehicle body structure to thereby mount the assist strap and headliner to vehicle body structure.The assist strap may include a pivotally mounted handle having a preassembly position such that upon displacement of the handle, the mandrel is displaced to the locking position. Additionally a breakaway tab means may secure the handle to the assist strap base such that until sufficient force is applied to the handle to rupture the breakaway tab the handle will not be displaced. The tab is tuned to require that a sufficient force be sufficient to drive the mandrel to the locking position.Type: GrantFiled: August 10, 1990Date of Patent: April 21, 1992Assignee: United Technologies Automotive, Inc.Inventors: James D. Dowd, David M. Hilborn, Matthew J. Brown, Richard P. Bozyk
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Patent number: 5095664Abstract: A method of producing a desired surface on an optical material including producing a plurality of elements of the optical material such that each element has an upper and a lower surface, arranging the plurality of elements such that adjacent elements are separated by an interstitial material having a hardness different from the optical material being processed, processing the surfaces of the elements and removing the interstitial material.Type: GrantFiled: January 30, 1990Date of Patent: March 17, 1992Assignee: Massachusetts Institute of TechnologyInventor: John J. Zayhowski
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Patent number: 5074018Abstract: A method and apparatus for cutting pipes into sections are described. A punching unit (7) forms apertures (8) in strip (2) from which pipe (4) is formed on winding core (3). A cutting device (5) has a circular shears (10) which has a first, smaller-diameter cutting roller (13) and a second cutting roller (14) each having two cutting edges. The first cutting roller (13) is swivelled through aperture (8) into the pipe (4). Rotary movement of the pipe (4) effects cutting, during which the cutting rollers (13, 14) move in synchronism with the pipe (4) so that the pipe is cut from the inside and the outside by the cutting rollers (13, 14).Type: GrantFiled: June 6, 1990Date of Patent: December 24, 1991Assignee: Emil Suter Maschinenfabrik AGInventors: Rudolf Binggeli, Fritz Langmeier
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Patent number: 5070602Abstract: An electric circuit assembly and method provides direct bonding of a copper lead frame pattern (430) on a ceramic substrate (402), including the provision of numerous isolated lead frame segments of small size, without requiring individual oxidation nor placement of same on the substrate, and eliminating loss of alignment during fusing during direct bonding. The lead frame pattern (430) includes a plurality of lead frames (432) interconnected and held together by support bridges (434) therebetween. The support bridges (434) are designed to vaporize, open, retract and disappear during the direct bonding operation, resulting in direct bonded fusion of the copper lead frames (432) to the ceramic substrate (402), and eliminating any remnant of the support bridges (434).Type: GrantFiled: February 16, 1990Date of Patent: December 10, 1991Assignee: Lance R. KaufmanInventors: Lance R. Kaufman, John A. Dombeck
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Patent number: 5046248Abstract: An all plastic taper thrust bearing has a separately handled, integrally molded roller and separator unit, from which the rollers are broken away as the bearing is assembled.Type: GrantFiled: August 13, 1990Date of Patent: September 10, 1991Assignee: General Motors CorporationInventor: Frederick E. Lederman
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Patent number: 5046229Abstract: A control car roller clutch is manufactured and assembled by providing two annular end rings, a molded unit that integrates the control cars and journal blocks, and a removable carrier ring that temporarily retains the cars and blocks as the integral unit.Type: GrantFiled: September 4, 1990Date of Patent: September 10, 1991Assignee: General Motors CorporationInventor: Frederick E. Lederman