Patents Assigned to Federal Sign and Signal Corporation
  • Derail wheel crowder
    Patent number: 3944174
    Abstract: A wheel crowder for mounting on a rail opposite a conventional derail for cooperation with the latter whereby the wheel crowder engages a wheel of a railcar or locomotive and forces the same toward the derail thereby assuring that the opposite wheel will move into the throat or entering toe of the derail and permit proper operation of the latter.
    Type: Grant
    Filed: September 20, 1974
    Date of Patent: March 16, 1976
    Assignee: Federal Sign and Signal Corporation
    Inventor: Leo E. Flinn
  • Door closure device
    Patent number: 3934306
    Abstract: A safety device for automatically closing a door in response to a predetermined condition, such as fire, is provided by a selectively disengageable brake operatively associated with a pivotable door closure arm. The brake includes a flexible cable wrapped around a brake drum, and means to selectively tighten the cable around the drum. A crank-pin rotates conjointly with the drum and engages the door closure arm to expeditiously close the door in the event of fire.
    Type: Grant
    Filed: January 6, 1975
    Date of Patent: January 27, 1976
    Assignee: Federal Sign and Signal Corporation
    Inventor: Vernie L. Farris