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:
Nov. 29, 2005
Filed:
Mar. 07, 2001
Kohji Suzuki, Kanagawa, JP;
Yuichi Yoshizawa, Tokyo, JP;
Takeshi Fukasawa, Kanagawa, JP;
Tatsuya Kurosawa, Kanagawa, JP;
Kohji Suzuki, Kanagawa, JP;
Yuichi Yoshizawa, Tokyo, JP;
Takeshi Fukasawa, Kanagawa, JP;
Tatsuya Kurosawa, Kanagawa, JP;
Alpha Corporation, Yokohama, JP;
Abstract
A cylinder lock utilizing an unlocking code to set at any desired time after the cylinder lock has been assembled and which, before the setting of the unlocking code, allows the rotor to be rotated for the purpose of inproving the efficiency of the automotive assembly work. The cylinder lock includes a rotor in which tumblers are installed, is rotatably inserted in a cylinder case, the tumblers following a code forming portion of an inserted key plate to form a lock-side unlocking code that matches a key-side unlocking code defined by the code forming portion. The tumblers are put in a state where the lock-side unlocking code is formed, in response to an identification portion formed in the key plate.