Patents Assigned to Da-Lite Screen Co. Inc.
  • Silencer for electric motion picture screens
    Patent number: 4159162
    Abstract: This invention relates to electric projection screens to effect the coordinated shifting of the screen surface into and out of picture-projecting position of the type mounted in or to the ceiling or to the wall of a room and more particularly to a means to quiet the operation of the screen roller tube and its appendages during rotation of the roller tube.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: June 26, 1979
    Assignee: Da-Lite Screen Co. Inc.
    Inventor: Eddie W. Christoffel