Patents Examined by T. Le Hoanganh
  • Patent number: 4987424
    Abstract: An antenna apparatus in which flexible antennas made of a conductive material are formed on a flexible insulating sheet. An insulating film made of a synthetic resin material is used as the insulating sheet, and the antennas are formed by adhering a metal foil on the insulating sheet or by depositing a metal film on the insulating sheet.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: January 22, 1991
    Assignee: Yagi Antenna Co., Ltd.
    Inventors: Kazuhiko Tamura, Atsushi Sato, Yutaka Aizawa, Yoshiyuki Suzuki
  • Patent number: 4878108
    Abstract: A package for heat dissipation of electronic components mounted on a strip of thermally conductive material. A plastic body is molded to encapsulate the component and strip with extended mold ejector pins employed to form a recess such that access to the thermally conductive strip is obtained. An external heat sink is mounted onto the plastic body. A clip or through bolt establishes thermal contact between the external heat sink and the internal thermally conductive strip.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: October 31, 1989
    Assignee: International Business Machines Corporation
    Inventors: Douglas W. Phelps, Jr., William C. Ward
  • Patent number: 4821047
    Abstract: Mounts for satellite tracking antennas or other devices. Mounts according to the invention aim antennas or other devices at various satellites along the geosynchronous satellite arc by creating a mechanical analog of that arc and forcing the axis of the antenna or device to rotate through the analogous arc. This is accomplished by fixing an Earth center analog point and mechanically constraining the axis of the antenna or device to rotate about a site-analog point which is located vertically a predetermined distance from the Earth center analog point. A rotating arm through which the axis of the antenna or device may pass swings the axis through an arc which is in a plane parallel to the Earth's equatorial plane and which has the Earth center analog point at its center and a radius of 6.611 times the predetermined distance between the Earth center analog point and the site-analog point. The arm may be rotated to aim the antenna or device at various satellites along the geosynchronous satellite arc.
    Type: Grant
    Filed: January 21, 1986
    Date of Patent: April 11, 1989
    Assignee: Scientific-Atlanta, Inc.
    Inventor: Thomas H. Williams