Patents Assigned to Door Control Specialties Co.
  • Torque modification apparatus for use with a door closer
    Patent number: 4788742
    Abstract: A torque modification device for use with a pocket door which is adaptable to modify the torque applied by a door closer to the door to increase the torque when the door approaches its fully latched condition.
    Type: Grant
    Filed: December 17, 1987
    Date of Patent: December 6, 1988
    Assignee: Door Control Specialties Co.
    Inventors: David B. Edgett, Richard L. Zunkel