The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 1991
Filed:
May. 09, 1989
Applicant:
Inventors:
Assignee:
Ilco Unican Inc., Montreal, CA;
Primary Examiner:
Int. Cl.
CPC ...
E05B / ; F16D / ;
U.S. Cl.
CPC ...
192 / ; 70189 ; 70218 ; 70386 ; 70422 ; 70472 ; 192 71 ; 464 35 ;
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.