Patents by Inventor Zgorzak Leszek

Zgorzak Leszek 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).

  • Cylindrical and permutation lock arrangements with clutch
    Patent number: 5040652
    Abstract: A permutation lock chamber has a chamber shaft extending therethrough which is held against rotation when the chamber is in a locked condition and which is rotatable when the chamber is in an unlocked condition. The chamber shaft is connected to the shaft of an outer door handle through a clutch. When the chamber is in its unlock condition and the outer door handle is rotated, the clutch engages and the chamber shaft rotates with the outer door handle shaft. When the chamber is in its locked condition and the outer door handle is rotated, the clutch slips to permit rotation of the outer door handle shaft without rotation of the chamber shaft.
    Type: Grant
    Filed: May 9, 1989
    Date of Patent: August 20, 1991
    Assignee: Ilco Unican Inc.
    Inventors: Aaron M. Fish, Alexander Branover, Zgorzak Leszek