Patents Assigned to Alfred Grass GmbH Metallwarenfabrik
  • Locking screw for the adjustable connection of a hinge strap
    Patent number: 4671716
    Abstract: The locking screw for the adjustable connection of a hinge strap to a base plate of a hinge has an external thread, with which the locking screw is screwed into a corresponding threaded hole in the hinge flap. The end face of the bolt portion of the locking screw abuts on the corresponding face of the base plate. In order to ensure a secure seating of the locking screw even under changing loads, a plate spring is attached to the end face of the locking screw and is spring-loaded axially, which abuts the base plate with its spring front face.
    Type: Grant
    Filed: April 4, 1986
    Date of Patent: June 9, 1987
    Assignee: Alfred Grass GmbH Metallwarenfabrik
    Inventor: Alfred Grass