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:
Dec. 05, 1978
Filed:
Sep. 28, 1977
Applicant:
Inventors:
Henrikki Malminen, Joensuu, FI;
Kaarlo Martikainen, Joensuu, FI;
Assignee:
Oy Wartsila AB, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05B / ; E05B / ;
U.S. Cl.
CPC ...
70365 ; 70403 ; 70406 ; 70411 ;
Abstract
A key profile system of a disc cylinder lock is disclosed in which system the appropriateness of a certain key profile for use in a lock is determined by the form of a key receiving opening in the actual locking elements of the lock, that is, the locking discs. The system comprises several different key profiles the form of which can be included within the border line of the basic profile of the used key blank. At least one of the key profiles fits functionally into a lock made for another key profile. The system may also include keys or key blanks with at least two different profiles arranged axially one after the other.