Patents Assigned to E. T. Dempsey Company Inc.
  • Door block for emergency use
    Patent number: 5511837
    Abstract: A block generally in the form of a right, isosceles triangular prism has a hook attached to the block to extend beyond the apex of the prism so that the hook can be hung over a door hinge leaf next to the hinge barrel on the right or left side to brace the door open, the hook being attached to the block so that the hook can be retracted into the block when the door block is not in use.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: April 30, 1996
    Assignee: E. T. Dempsey Company Inc.
    Inventors: Edward T. Dempsey, Kenneth B. Cooley, Jr., Kenneth E. Batty