1997-04-17
1999-04-20
Boucher, Darnell M.
Locks
Operating mechanism
Key
70378, 70338, 70493, 70419, E05B 2704, E05B 3508
Patent
active
058947507
ABSTRACT:
A lock includes a casing, a cylindrical rod and a key, the casing having a longitudinal hole for the cylindrical rod received therein. The casing and the cylindrical rod have a main transverse hole device defined radially respectively therein and are in alignment with each other for receiving a main pin device therein, the cylindrical rod having a key hole defined longitudinally therein, at least one offset transverse hole device defined between the key hole and the main transverse hole device which is parallel to the offset transverse hole device so as to communicate with the main transverse hole device and the key hole, the offset transverse hole device having an offset pin device received therein, the offset pin device being lifted by a movement of the key inserted in the key hole to operate the main pin device to open the lock. In addition, the main pin device includes two hollow cylindrical pins for receiving two cylindrical pins and a ball-shaped pin, a recess defined in a periphery of the cylindrical rod for cooperating with the main pin device which is adjusted by a specific key.
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Lock Works, Popular Science, Jun. 1961, pp. 102-103.
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