Patents Assigned to Plastics Engineering & Manufacturing Co.
  • Luminaire shield
    Patent number: 4160286
    Abstract: A transparent hemispherical shield formed of polycarbonate resin protects a light-diffusing lens mounted in an aperture in the door of a conventional streetlight. The shield has an inwardly projecting flange disposed in a diametral plane and defining an aperture of approximately the same size and shape as the door aperture. The shield is attached to the streetlight by resilient return-bent clips having spaced parallel tabs securing the shield flange to the streetlight door.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: July 3, 1979
    Assignee: Plastics Engineering & Manufacturing Co.
    Inventor: William H. Merritt