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:
May. 14, 1985
Filed:
Dec. 13, 1982
Joseph J Parrock, Milford, OH (US);
American Standard Inc., New York, NY (US);
Abstract
Disclosed is a key changeable lock of the lever tumbler type wherein at least one tumbler has a series of seats which are alternatively engageable with a fixed pivot. A biasing spring urges the tumbler seats toward the pivot and tends to hold a particular seat against the pivot to define the axis of tumbler rotation. To change the combination, the tumbler is positively shifted along the series of seats by turning a key which bears against the tumbler and overcomes the biasing force of the spring, displacing one seat from the pivot and shifting the tumbler until another seat engages the pivot.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile