Patents Examined by Richard R. Kucia
  • Patent number: 4328530
    Abstract: A module carrying microcircuit LSI chips includes stacks of parallel ceramic sheets carrying thin capacitor plates laminated in a ceramic structure in which the capacitor plates either serve (1) as the power distribution conductors known as power planes or (2) are connected to power conducting vias which pass through the capacitor plates. Those vias connect to the appropriate capacitor plates electrically, thereby locating the capacitance required as close as possible to the solder bonds between the chips and the carrier. Stacks of laminated ceramic capacitors serving as power planes can be inserted into slots in laminated ceramic sheets providing the first arrangement above. Signal vias are provided about the periphery of the power planes. A highly parallel distribution of current is provided by means of horizontal power conducting straps which reduce voltage fluctuations, electrical resistance, and current per via.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: May 4, 1982
    Assignee: International Business Machines Corporation
    Inventors: Christopher H. Bajorek, Dudley A. Chance, Chung W. Ho, David A. Thompson
  • Patent number: 4327247
    Abstract: This invention relates to a printed wiring board having two electrically conductive circuit layers on an insulating laminate. The insulating laminate includes a first insulating layer having a thickness of 0.01 to 0.5 mm, and metal foils are provided on both sides of the first insulating layer. Metal foil circuit layers of predetermined patterns are formed by printing and etching the metal foils. Thereafter, through holes are formed in the first insulating layer across the facing metal foil circuit layers, and then electrically conductive members are applied over the through holes and the metal foil circuit layers at their ends. After that, a second insulating layer is attached onto one of the sides of the first insulating layer on which the connected metal foil circuit layers are provided.
    Type: Grant
    Filed: November 19, 1979
    Date of Patent: April 27, 1982
    Assignees: Shin-Kobe Electric Machinery Co., Ltd., Shirai Eenshi Kogyo Co., Ltd.
    Inventors: Kazuyuki Mituhashi, Kunio Matumoto, Haruo Shirai, Yoshikatu Tanaka
  • Patent number: 4326239
    Abstract: A printed circuit board includes an insulating board; at least one pair of conductive patterns arranged on the insulating board and spaced from each other by a predetermined length; and a paint layer formed in the space between the conductive patterns within a predetermined range.
    Type: Grant
    Filed: September 11, 1979
    Date of Patent: April 20, 1982
    Assignee: Sony Corporation
    Inventors: Mitsuo Ohsawa, Masato Yamamura, Toshio Takahashi
  • Patent number: 4322777
    Abstract: A circuit board formed with a spark gap for protecting a circuit element such as a transistor connected to a picture tube of a television receiver when spark discharge occurring within the picture tube produces a current under a high voltage tending to destroy the transistor. The spark gap comprises a pair of metal balls disposed respectively on the confronting tip portions of a pair of discharge electrodes disposed opposite to each other on an insulator substrate so that spark discharge can always occur across these metal balls without occurring across the electrodes.
    Type: Grant
    Filed: March 19, 1980
    Date of Patent: March 30, 1982
    Assignee: Hitachi, Ltd.
    Inventors: Yasuomi Ueta, Tatsuro Toyama
  • Patent number: 4321426
    Abstract: A heat shrunken polymeric material is wrapped around a plurality of adhesive coated, insulated wire strands juxtaposed in a transposed configuration to compact the metal strands into intersurface contacting relation, and thus promote improved bonding together of the metal strands for enhanced short circuit withstand.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: March 23, 1982
    Assignee: General Electric Company
    Inventors: Friedrich K. Schaeffer, Thomas F. Brennan
  • Patent number: 4320438
    Abstract: In a multi-layer ceramic package, a plurality of ceramic lamina each has a conductive pattern, and there is an internal cavity of the package within which is bonded a chip or a plurality of chips intereconnected to form a chip array. The chip or chip array is connected through short wire bonds at varying lamina levels to metalized conductive patterns thereon, each lamina level having a particular conductive pattern. The conductive patterns on the respective lamina layers are interconnected either by tunneled through openings filled with metalized material, or by edge formed metalizations so that the conductive patterns ultimately connect to a number of pads at the undersurface of the ceramic package mounted onto a metalized board. There is achieved a high component density; but because connecting wire leads are "staggered" or connected at alternating points with wholly different package levels, it is possible to maintain a 10 mil spacing and 10 mil size of the wire bond lands.
    Type: Grant
    Filed: May 15, 1980
    Date of Patent: March 16, 1982
    Assignee: CTS Corporation
    Inventors: Shawki Ibrahim, James E. Elsner
  • Patent number: 4319072
    Abstract: In a cable consisting of three bundles each having three strands each bundle is rotated by 60.degree. in each of two consecutive longitudinal sections, no rotation occurring in the third section. The sections without rotation are displaced by one section for each bundle. Therefore, a close coupling of the strand of a bundle to all strands of the other bundles and a phantom surge impedance which only slightly differs from the surge impedance of the bundle are achieved. In addition, the bundles are twisted. The cable is suited for the simultaneous push-pull transmission of a maximal ten independent, binary signals in both directions.
    Type: Grant
    Filed: August 13, 1980
    Date of Patent: March 9, 1982
    Assignee: Siemens Aktiengesellschaft
    Inventor: Wilhelm Wilhelm
  • Patent number: 4319305
    Abstract: A printed circuit board mounting system uses three pairs of channels 7, 11, 14 to support a board 3 in a rest position, a test position or a repair position, for the maintenance of the board 3 without its removal from the equipment of which it is a part.
    Type: Grant
    Filed: June 17, 1980
    Date of Patent: March 9, 1982
    Assignee: Burroughs Corporation
    Inventor: James S. Meldrum
  • Patent number: 4319074
    Abstract: A void-free electrical conductor for power cables including a stranded electrical conductor formed of a central member and a plurality of abutting peripheral conducting members, the stranded conductor having a primary layer of electrical insulation heat shrunk about the exterior thereof and having an insulation material completely filling the internal space of the conductor within the primary external electrical insulation layer, the filler insulation adapted to fill all interstices between individual conducting strands outward from the abutment points between peripheral conducting members and the area inside of the abutment points being insulated by the insulation around the central conducting member to thereby form a completely void-free filling of the space within the primary electrical insulation in order to prevent the axial flow of any liquid or gaseous substance therethrough, said primary electrical insulation layer being void-free to increase the dielectric strength of the final electrical conductor c
    Type: Grant
    Filed: May 27, 1979
    Date of Patent: March 9, 1982
    Assignee: TRW Inc.
    Inventors: Ruth E. Yaste, Russell B. Budrow
  • Patent number: 4317002
    Abstract: A multi-core power cable (1) in which the conductors comprise a central conductor (2) and two or more tubular conductors (4, 6) coaxial with the central conductor (2), at least the tubular conductors forming the cores. The conductors (2, 4, 6) are isolated from one another by insulating layers (3, 5, 7). A sheath (8) and armoring (9, 10) may also be provided.
    Type: Grant
    Filed: October 24, 1979
    Date of Patent: February 23, 1982
    Assignee: International Standard Electric Corporation
    Inventor: Lyndon R. Spicer
  • Patent number: 4317159
    Abstract: An AC metallized film capacitor having a plurality of electrodes separated by a dielectric spacer contains as its impregnant system a dielectric fluid and 1-20% of an aliphatic or aromatic isocyanate having unreacted NCO groups to improve life characteristics.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: February 23, 1982
    Assignee: Sprague Electric Company
    Inventor: Andrew Dequasie
  • Patent number: 4317158
    Abstract: AC life and corona characteristics of a polypropylene-aluminum foil or a metallized film wound capacitor are improved by coating at least the ends of the capacitor with a partially cured urethane containing unreacted isocyanate groups.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: February 23, 1982
    Assignee: Sprague Electric Company
    Inventor: Andrew Dequasie
  • Patent number: 4317003
    Abstract: A multiple sheath cable for telemetry, heating and communications and methods of manufacturing such cable in long lengths with high tensile strength. The telemetry and communications cable may be of the wire type for conducting electrical signals or fiber optics for conducting laser or other optical signal, the conductors being typically insulated by mineral insulation material or organic insulation material. These insulated conductors are provided with concentric multiple layers of metal tubular sheaths having staggered weld joints for increasing tensile strength while protecting the conductors and the insulation from extreme environmental conditions such as heat, pressure and corrosion.
    Type: Grant
    Filed: January 17, 1980
    Date of Patent: February 23, 1982
    Inventor: Stanley J. Gray
  • Patent number: 4317001
    Abstract: Insulation for an electric power cable, and a power cable including such insulation, the insulation having an improved dielectric strength and being irradiation cross-linked polymeric material having mixed therewith carbon black having a particle size in the range from about 200 to about 500 millimicrons, the carbon black content being about 10% to about 40% of the weight of the mixture of carbon black and the polymeric material. Also, the cable insulation may be layers of different density polyethylene, at least one of the layers being the described mixture of polyethylene and carbon black.
    Type: Grant
    Filed: September 18, 1980
    Date of Patent: February 23, 1982
    Assignee: Pirelli Cable Corp.
    Inventors: David A. Silver, Rudolf G. Lukac, Solomon Rubinstein
  • Patent number: 4317000
    Abstract: A torque balanced cable for towing or suspending oceanographic instrumenton includes a data transmission core about which is wound a helically laid inner layer of load bearing strands formed of high tensile strength, low stretch aramid fiber and having a selected pitch angle, pitch diameter and strand thickness. An outer composite layer is contrahelically wound about the inner layer and an interposed, abrasion resisting barrier film layer, and includes alternating load bearing strands and non-load bearing filler strands, the other load bearing strands having the same degree of pitch angle and thickness as the inner strands and of a number that bears substantially the same ratio to the number of inner strands as the pitch diameter of the inner layer bears to the pitch diameter of the outer layer.
    Type: Grant
    Filed: July 23, 1980
    Date of Patent: February 23, 1982
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Kenneth M. Ferer
  • Patent number: 4316235
    Abstract: A movable electroluminescent display which can be moved relative to its printed circuit board to effect selective viewing of the display apart from the printed circuit board.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: February 16, 1982
    Assignee: Motorola, Inc.
    Inventor: Leonard Latasiewicz
  • Patent number: 4314737
    Abstract: A cable assembly having a shielded conductor and a method of making same. The shielded conductor is formed by bonding a thin layer of conductive material to the outer surface of an insulated wire. The bonding may be achieved by coating the outside surface of the insulated wire with a metallic particle and solvent solution, and then heating the coated wire to flash off the solvent and achieve the desired bond. The outer conductive layer may be grounded by positioning grounding means adjacent thereto prior to encapsulation in an outer insulating jacket. The grounding means preferably takes the form of a center ground wire surrounded by a semi-conductive material whose outer diameter is substantially the same as that of the shielded conductor. The semi-conductor material contacts the outer conductive layer along its length, and physical and electrical contact is maintained by the outer jacket.
    Type: Grant
    Filed: June 14, 1979
    Date of Patent: February 9, 1982
    Assignee: Virginia Patent Development Corp.
    Inventors: Charles E. Bogese, Stephen B. Bogese, II
  • Patent number: 4314312
    Abstract: A circuit programming means for establishing a desired circuit pattern selected from a variety of circuit options comprises a circuit board having a plurality of side-by-side circuit board conductors thereon. A conductive connector clip is mounted on the circuit board in straddling relationship to the conductors and has contact springs extending therefrom which are in alignment with the conductors. A removable insulating program control means is positioned between a number of the springs and their associated circuit board conductors, the insulating means having openings so that at least two of the contact springs are in electrical contact with their associated conductors. The selected circuit pattern can be changed by merely moving the program control means and inserting a different program control means to commonly connect those conductors which will produce the desired circuit option.
    Type: Grant
    Filed: April 14, 1980
    Date of Patent: February 2, 1982
    Assignee: AMP Incorporated
    Inventors: William L. Donmoyer, Jon A. Fortuna
  • Patent number: 4314136
    Abstract: In a tubular composite electrode for depositing stainless steel weld metal, satisfactory performance in vertical up welding is achieved through the inclusion in the electrode core of a slag mix comprising 15 to 60% weight percent zirconium dioxide.
    Type: Grant
    Filed: April 16, 1980
    Date of Patent: February 2, 1982
    Assignee: Teledyne Industries, Inc.
    Inventor: Damian J. Kotecki
  • Patent number: 4312260
    Abstract: A flexible cable comprises a plurality of substantially parallel, textile core threads and an external sheath, in which cable cohesion is provided by a binder which is applied in a discontinuous manner to the threads to bond the core threads to one another to form a core. The same or additional binder is used to bond the core to the sheath. An electrical conductor element may be provided centrally of the core and the sheath preferably is braided in position about the core. In addition to the beneficial properties associated with totally impregnated cables, the cables of this invention possess a very high flexibility. These cables or ropes can be used for all applications in which flexibility and strength are the principally desired qualities including, for example, motorway crash barriers, oceanography, ballooning, and fixing floating stations in the sea.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: January 26, 1982
    Assignee: Rhone-Poulenc-Textile
    Inventor: Gilbert Morieras