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:
Mar. 10, 1987
Filed:
Apr. 21, 1986
Applicant:
Inventor:
Richard R Bettger, San Francisco, CA (US);
Assignee:
Schlage Lock Company, San Francisco, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E05B / ;
U.S. Cl.
CPC ...
292347 ; 292355 ; 292D / ;
Abstract
The lever assembly is of two principal parts: a lever with a circular aperture to engage the shank of a door knob, and a retaining plate, for fastening thereof to the lever, having a projecting cog. The cog engages a knob catch slot in the door knob shank. Accordingly, as the lever is rotated/manipulated, it turns the door knob through the engagement of the cog with the slot, and the fastening of the plate to the lever. The assembly accommodates retrofitting thereof to doors having round door knobs.