Patents Assigned to Saunders-Roe Developments Limited
  • Lighting devices
    Patent number: 4931910
    Abstract: A lighting device comprises a cylindrical light carrier having a plurality of tubular self luminous light sources attached longitudinally along a surface and throughout a major arc of its circumference. In one embodiment the lighting device includes a parabolic reflector.
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: June 5, 1990
    Assignee: Saunders-Roe Developments Limited
    Inventor: Kenneth F. Wills
  • Transparent instrument cover and instrument incorporating same
    Patent number: 4181925
    Abstract: A transparent instrument cover provided with an electroluminescent area arranged so that when energized, light is projected from one surface of the cover to illuminate a dial of an instrument on which it is fitted. The cover is intended as a replacement for an existing transparent cover or coverglass in an instrument. In a first embodiment the electroluminescent area is an annular area located adjacent the periphery of the cover, and in a second embodiment an isolated electroluminescent area is located within the annular area.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: January 1, 1980
    Assignee: Saunders-Roe Developments Limited
    Inventors: Kenneth Burrows, Robert Hiscutt