Patents by Inventor Erwin Drescher

Erwin Drescher has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4117785
    Abstract: A safe with a safe door and a recessed dial which is constructed to actuate the safe lock and to release the blocking of the bolt system. The recessed dial can be pulled forward from the safe door in its axial direction. A bolt actuated by the dial is provided for blocking or releasing the forward movement in such a way, that the dial can be pulled forward only when the lock is in open position and the dial can simultaneously actuate the bolt system. The dial is held axially captive in the safe door, and a stop is provided for limiting the pull-forward movement. An axially displaceable clutch is installed on the shaft of the dial and has two telescoped pipe sections of polygon cross-section. One section of the clutch has on its outer periphery a curved track which serves for force-linked support of the bolt system in all positions. The bolt for blocking or releasing the pull-out movement of the dial is in the form of a bolt plate located at the lock and is rigidly connected to the lock bolt.
    Type: Grant
    Filed: April 27, 1977
    Date of Patent: October 3, 1978
    Assignee: Melsunger Metall-Werk, Erwin Drescher
    Inventor: Erwin Drescher