Patents Examined by Hoan Ganh
  • Patent number: 5446472
    Abstract: A system is described for raising and lowering an antenna without using an electric motor or hand crank. A shaft is attached to an antenna mounted to the roof of a recreational vehicle. A first adapter engages the shaft. A second adapter couples with the first adapter. A portable self-powered activating device such as an electric screwdriver is secured by a chuck to the second adapter. The rotational force generated by the activating device is transferred via the first and second adapters to the shaft to raise or lower the antenna.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: August 29, 1995
    Assignee: Winegard Company
    Inventor: Charles E. Rodeffer
  • Patent number: 5426442
    Abstract: A unitary array of efficient directional corrugated feed horns, each having a desired corrugated horn cross-section within close tolerances, as well as accurate positioning and orientation relative to each other. The unitary array structure is comprised of a plurality of thin platelets which are laminated together in a selected sequence. The unitary array design provides a mechanical structure to support millimeter and sub-millimeter wavelength electronic devices for reception or transmission of electromagnetic energy and cooling fluid circulation channels within the array to remove unwanted heat generated by the attached electronic devices. The design of the present invention affords a relatively lightweight structure through removal of unneeded materials by forming cavities within the structure while leaving sufficient material for the bonding of the platelet assembly.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: June 20, 1995
    Assignee: Aerojet-General Corporation
    Inventor: Robert W. Haas
  • Patent number: 5283591
    Abstract: The antenna particularly for domestic, collective or community installations, receives plural telecommunication beams and comprises a preferably paraboloidal fixed reflector with an axis of symmetry. At least one grating of annular diffraction members is substantially symmetrical with regard to the axis and is placed parallel to the reflector. The grating defines first and second focal points symmetrical to the axis towards which are susceptible to converge first and second beams directed substantially parallel to straight lines going through the centre of the grating and through first and second focal points respectively. A microwave head can sweep the focal plane along a focal line, or several microwave heads are positioned on a gantry thereby receiving or emitting plural beams, though the reflector is fixed.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: February 1, 1994
    Assignee: TeleDiffusion de France
    Inventor: Jean-Jacques Delmas
  • Patent number: 4990926
    Abstract: A suspended line feed type planar antenna has a substrate sandwiched between a top plate and a bottom plate, in which a number of protrusions are formed on the top plate and the bottom plate at a plurality of corresponding positions by deforming the top plate and the bottom plate by means of a press-process or press-treatment, so that the substrate is supported by the protrusions.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: February 5, 1991
    Assignee: Sony Corporation
    Inventors: Takashi Otsuka, Junichi Kajikuri
  • Patent number: 4868637
    Abstract: An electronic device made by the method of connecting a circuit member (18) having a plurality of laterally spaced electrically conductive terminals (20) to a substrate (12) including a mounting surface (14) having a plurality of laterally spaced conductive paths (16) wherein the method includes the steps of applying an adhesive (22) including a resin having a twenty to twenty-five percent by weight content of conductive metal particles over the mounting surface (14) of the substrate (12) having the conductive paths (16) wherein the resin is a dielectric preventing conductivity between the spaced metal particles therein and mounting the circuit member (18) on the adhesive (22) while vertically aligning the conductive terminals (20) over preselected ones of the conductive paths (16).
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: September 19, 1989
    Inventors: James R. Clements, Terry T. J. Yu, Laura H. C. Yu