Mechanical key code verification system

• Main Authors: KATAGIRI TOSHIHARU, TAMEZANE TAKUMI
• Format: Patent
• Language: English
• Published: 07.06.2011
• Subjects: ACCESSORIES THEREFOR; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE; CHECKING-DEVICES; FIXED CONSTRUCTIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATING RANDOM NUMBERS; HANDCUFFS; KEYS; LOCKS; PERFORMING OPERATIONS; PHYSICS; REGISTERING OR INDICATING THE WORKING OF MACHINES; SAFES; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TIME OR ATTENDANCE REGISTERS; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR; VOTING OR LOTTERY APPARATUS; WINDOW OR DOOR FITTINGS

A mechanical key code verification system including a mechanical key and a lock apparatus into which the mechanical key is insertable. The mechanical key includes a key body and a key code pattern including a plurality of recessed portions and a plurality of non-recessed portions formed on the at least one plane of the key body, the key code pattern having line symmetry.