Patents Assigned to Janice E. Schrader
  • Damper control
    Patent number: 4313418
    Abstract: A damper control system wherein a control screw is threadedly mounted in a door and engages a depending contact arm on a damper to move the damper between a closed position and various open positions.
    Type: Grant
    Filed: March 18, 1980
    Date of Patent: February 2, 1982
    Assignee: Janice E. Schrader
    Inventors: Charles I. Schrader, Janice E. Schrader