Patents Assigned to Dave McFadden
  • Lock cylinder having a releasable catch
    Patent number: 3961508
    Abstract: In a door lock assembly, a lock cylinder is releasably fastened within a lock cylinder housing by means of a catch affixed to the lock cylinder and operatively associated with a structure, such as a lock bolt assembly, within the lock cylinder housing. The catch is released by means of an actuating pin passing from the side edge of the door into the lock cylinder housing for disengaging the catch and allowing the lock cylinder to be removed from its housing. The pin, in a preferred embodiment, is carried within the lock bolt.
    Type: Grant
    Filed: December 12, 1974
    Date of Patent: June 8, 1976
    Assignees: Alois Crepinsek, Lee A. Chagra, Dave McFadden
    Inventor: Alois Crepinsek