Breaking Through Weakened Portion Patents (Class 29/413)
  • Patent number: 6088991
    Abstract: 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: Grant
    Filed: December 7, 1999
    Date of Patent: July 18, 2000
    Inventor: Namon A. Nassef
  • Patent number: 6035528
    Abstract: 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: Grant
    Filed: June 10, 1998
    Date of Patent: March 14, 2000
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Toshiya Sasaki, Kazuyoshi Uchiyama, Masahiko Kawaguchi, Katsuhiro Misaki, Katsuji Matsuta
  • Patent number: 6028489
    Abstract: 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: Grant
    Filed: December 18, 1998
    Date of Patent: February 22, 2000
    Assignee: Chung-Shan Institute of Science and Technology
    Inventors: Shing-Yeu Juang, Tseng-Hsin Chiu, Wen-Yuh Liao
  • Patent number: 6023841
    Abstract: 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: Grant
    Filed: May 6, 1998
    Date of Patent: February 15, 2000
    Inventor: James A. Concorso
  • Patent number: 6004214
    Abstract: 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: Grant
    Filed: August 20, 1998
    Date of Patent: December 21, 1999
    Assignee: Cobra Metal Works Corp.
    Inventor: Anton J. Hirsch
  • Patent number: 5953862
    Abstract: 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: Grant
    Filed: February 4, 1997
    Date of Patent: September 21, 1999
    Assignee: EZ-SHIN, INC., a California corporation
    Inventors: Levitt D. Earhart, Robert C. Hawley, Joseph S. Suiter, deceased
  • Patent number: 5884391
    Abstract: 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: Grant
    Filed: June 30, 1997
    Date of Patent: March 23, 1999
    Assignee: Littelfuse, Inc.
    Inventors: Katherine M. McGuire, Honorio Luciano
  • Patent number: 5831834
    Abstract: 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: Grant
    Filed: October 26, 1995
    Date of Patent: November 3, 1998
    Assignee: Intel Corporation
    Inventor: David E. Landolf
  • Patent number: 5799390
    Abstract: 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: Grant
    Filed: May 21, 1997
    Date of Patent: September 1, 1998
    Inventors: Frank Dileo, Peter Michalos
  • Patent number: 5699607
    Abstract: 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: Grant
    Filed: May 3, 1996
    Date of Patent: December 23, 1997
    Assignee: Littelfuse, Inc.
    Inventors: Katherine M. McGuire, Mike A. Ward
  • Patent number: 5679232
    Abstract: 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: Grant
    Filed: April 18, 1996
    Date of Patent: October 21, 1997
    Assignee: ElectroCopper Products Limited
    Inventors: 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
  • Patent number: 5588210
    Abstract: 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: Grant
    Filed: August 5, 1994
    Date of Patent: December 31, 1996
    Assignee: General Motors Corporation
    Inventor: Frederick E. Lederman
  • Patent number: 5586380
    Abstract: 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: Grant
    Filed: October 18, 1994
    Date of Patent: December 24, 1996
    Assignee: Nelson Metal Products Corporation
    Inventor: Dennis S. Shimmell
  • Patent number: 5581980
    Abstract: 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: Grant
    Filed: June 29, 1994
    Date of Patent: December 10, 1996
    Assignee: UHU GmbH
    Inventor: Hans Halm
  • Patent number: 5551782
    Abstract: 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: Grant
    Filed: October 4, 1994
    Date of Patent: September 3, 1996
    Assignee: Sintermetallwerk Krebsoge GmbH
    Inventors: Volker Arnhold, Uwe Eilrich, Harald Neubert
  • Patent number: 5507093
    Abstract: 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: Grant
    Filed: April 4, 1994
    Date of Patent: April 16, 1996
    Assignee: Hammerwerk Schulte GmbH & Co. KG
    Inventors: Horst Wittenstein, Hendrik Muntinga
  • Patent number: 5475922
    Abstract: 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: Grant
    Filed: September 15, 1994
    Date of Patent: December 19, 1995
    Assignee: Fujitsu Ltd.
    Inventors: Akira Tamura, Hidehisa Sakai, Mikio Nishihara, Kyoichiro Kawano
  • Patent number: 5472126
    Abstract: 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: Grant
    Filed: December 16, 1993
    Date of Patent: December 5, 1995
    Assignee: Crown Unlimited Machine, Inc.
    Inventors: Steven L. Stroup, Sr., Steven L. Stroup, II
  • Patent number: 5450668
    Abstract: 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: Grant
    Filed: December 21, 1993
    Date of Patent: September 19, 1995
    Assignee: Crown Unlimited Machine, Inc.
    Inventor: Steven L. Stroup, Sr.
  • Patent number: 5413659
    Abstract: 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: Grant
    Filed: September 30, 1993
    Date of Patent: May 9, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: David C. Koskenmaki, Clyde D. Calhoun
  • Patent number: 5402571
    Abstract: 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: Grant
    Filed: June 6, 1994
    Date of Patent: April 4, 1995
    Assignee: Sanden Corporation
    Inventors: Kazuki Hosoya, Hirotaka Kado
  • Patent number: 5400631
    Abstract: 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: Grant
    Filed: November 5, 1993
    Date of Patent: March 28, 1995
    Assignee: Danieli & Officine Meccaniche S.p.A.
    Inventors: Gianpietro Benedetti, Alfredo Polino
  • Patent number: 5388745
    Abstract: 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: Grant
    Filed: January 18, 1994
    Date of Patent: February 14, 1995
    Inventor: Steven L. Stroup, Sr.
  • Patent number: 5386623
    Abstract: 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: Grant
    Filed: November 7, 1991
    Date of Patent: February 7, 1995
    Assignees: Hitachi, Ltd., Hitachi Computer Engineering Co., Ltd.
    Inventors: Yoshihiko Okamoto, Hideyuki Yamada
  • Patent number: 5355569
    Abstract: 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: Grant
    Filed: September 25, 1992
    Date of Patent: October 18, 1994
    Assignee: Robert Bosch GmbH
    Inventors: Jiri Marek, Helmut Baumann, Guenther Findler, Michael Offenberg, Martin Willmann
  • Patent number: 5347699
    Abstract: 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: Grant
    Filed: December 11, 1992
    Date of Patent: September 20, 1994
    Assignee: ABB Power T&D Company Inc.
    Inventor: Thomas A. Ward
  • Patent number: 5343602
    Abstract: 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: Grant
    Filed: January 14, 1993
    Date of Patent: September 6, 1994
    Assignee: Mannesmann Kienlze GmbH
    Inventor: Horst Plankenhorn
  • Patent number: 5320200
    Abstract: 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: Grant
    Filed: March 16, 1993
    Date of Patent: June 14, 1994
    Assignee: Tokico Ltd.
    Inventor: Junichi Hashimoto
  • Patent number: 5310104
    Abstract: 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: Grant
    Filed: December 16, 1991
    Date of Patent: May 10, 1994
    Assignee: General Electric Company
    Inventors: Simon A. Zaidel, Walter Fabian, Brian G. Baxter, Albert J. Manoni
  • Patent number: 5274915
    Abstract: 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: Grant
    Filed: June 18, 1991
    Date of Patent: January 4, 1994
    Assignee: Nippon CMK Corp.
    Inventors: Yasunori Matsushima, Kunio Nishi
  • Patent number: 5249345
    Abstract: 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: Grant
    Filed: February 10, 1992
    Date of Patent: October 5, 1993
    Assignee: Brazeway, Inc.
    Inventors: Milan Virsik, Henry McCarbery
  • Patent number: 5245738
    Abstract: 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: Grant
    Filed: August 27, 1991
    Date of Patent: September 21, 1993
    Assignee: TiNi Alloy Company
    Inventor: Alfred D. Johnson
  • Patent number: 5237732
    Abstract: 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: Grant
    Filed: April 8, 1992
    Date of Patent: August 24, 1993
    Assignee: Pelikan, Inc.
    Inventors: Donald J. Polak, Kenneth E. McDonald
  • Patent number: 5235742
    Abstract: 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: Grant
    Filed: June 24, 1991
    Date of Patent: August 17, 1993
    Assignee: Siemens Pacesetter, Inc.
    Inventor: Andrew J. Szyszkowski
  • Patent number: 5233754
    Abstract: 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: Grant
    Filed: June 26, 1991
    Date of Patent: August 10, 1993
    Assignee: Nippon CMK Corp.
    Inventors: Satoshi Matsunaga, Hirokazu Toyoda
  • Patent number: 5208979
    Abstract: 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: Grant
    Filed: September 25, 1992
    Date of Patent: May 11, 1993
    Inventor: Howard Schmidt
  • Patent number: 5201117
    Abstract: 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: Grant
    Filed: November 4, 1991
    Date of Patent: April 13, 1993
    Assignee: General Motors Corporation
    Inventor: William D. Wright
  • Patent number: 5195237
    Abstract: 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: Grant
    Filed: December 24, 1991
    Date of Patent: March 23, 1993
    Assignee: Cray Computer Corporation
    Inventors: Seymour R. Cray, Nicholas J. Krajewski
  • Patent number: 5181306
    Abstract: 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: Grant
    Filed: February 6, 1992
    Date of Patent: January 26, 1993
    Assignee: Carl-Zeiss-Stiftung
    Inventors: Arnold Guttner, Jobst Herrmann, Karl-H. Simon
  • Patent number: 5142761
    Abstract: 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: Grant
    Filed: November 21, 1990
    Date of Patent: September 1, 1992
    Assignee: Shape Inc.
    Inventors: Anthony L. Gelardi, Craig Lovecky, Alan Lowery, Robert Barstow
  • Patent number: 5140745
    Abstract: 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: Grant
    Filed: July 23, 1990
    Date of Patent: August 25, 1992
    Inventor: Joseph A. McKenzie, Jr.
  • Patent number: 5134765
    Abstract: 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: Grant
    Filed: March 26, 1991
    Date of Patent: August 4, 1992
    Assignee: Roberts Systems, Inc.
    Inventors: John T. Roberts, Claude E. Monsees, William Z. Vanhook
  • Patent number: 5119555
    Abstract: 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: Grant
    Filed: October 2, 1990
    Date of Patent: June 9, 1992
    Assignee: TiNi Alloy Company
    Inventor: Alfred D. Johnson
  • Patent number: 5117949
    Abstract: 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: Grant
    Filed: September 21, 1990
    Date of Patent: June 2, 1992
    Assignee: Hayes Industrial Brake, Inc.
    Inventors: James A. Buckley, George H. Hinkens, James J. Dimsey
  • Patent number: 5105521
    Abstract: 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: Grant
    Filed: August 10, 1990
    Date of Patent: April 21, 1992
    Assignee: United Technologies Automotive, Inc.
    Inventors: James D. Dowd, David M. Hilborn, Matthew J. Brown, Richard P. Bozyk
  • Patent number: 5095664
    Abstract: 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: Grant
    Filed: January 30, 1990
    Date of Patent: March 17, 1992
    Assignee: Massachusetts Institute of Technology
    Inventor: John J. Zayhowski
  • Patent number: 5074018
    Abstract: 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: Grant
    Filed: June 6, 1990
    Date of Patent: December 24, 1991
    Assignee: Emil Suter Maschinenfabrik AG
    Inventors: Rudolf Binggeli, Fritz Langmeier
  • Patent number: 5070602
    Abstract: 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: Grant
    Filed: February 16, 1990
    Date of Patent: December 10, 1991
    Assignee: Lance R. Kaufman
    Inventors: Lance R. Kaufman, John A. Dombeck
  • Patent number: 5046248
    Abstract: 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: Grant
    Filed: August 13, 1990
    Date of Patent: September 10, 1991
    Assignee: General Motors Corporation
    Inventor: Frederick E. Lederman
  • Patent number: 5046229
    Abstract: 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: Grant
    Filed: September 4, 1990
    Date of Patent: September 10, 1991
    Assignee: General Motors Corporation
    Inventor: Frederick E. Lederman