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. 18, 2003
Filed:
Oct. 17, 2000
Applicant:
Inventor:
Ernst Keller, CH-8805 Richterswil, CH;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05B 9/04 ; E05B 1/906 ; E05B 2/706 ;
U.S. Cl.
CPC ...
E05B 9/04 ; E05B 1/906 ; E05B 2/706 ;
Abstract
The invention relates to a built-in safety device comprising a housing ( ) and a rotor ( ) mounted therein. Tumblers ( ) are mounted in the housing ( ) and in the rotor ( ). The maximal length (A) of the built-in safety device ( ) is approximately 40 mm, and the effective part ( ) of the key ( ) is essentially as long as the rotor ( ). In addition, the rotor ( ) is constructed as one piece and can be operated from both sides thereof. The inventive built in safety device can be installed in a mortise lock more easily than a cross-key bit safety device and permits the production of a locking system.