High security padlock

Details High security padlock High security padlock

1989-02-21

1990-04-24

Luong, Vinh T.

Locks

Operating mechanism

Key

70417, E05B 6722

Patent

active

049189506

ABSTRACT:
A lock includes a padlock housing and an interchangeable core including a core body, a core sleeve, and a key plug having a key slot. A bridge member is provided on a flange of the key-way disc to cover a portion of the longitudinal opening of the key slot in the key-way disc. A cylinder cap is mounted on the lock core by a flange and slot connection for removal therewith by a control key which releases control lugs on the lock core from the lock housing cap is used with a lock cylinder, a cylinder ring having a groove in an interior wall that opens toward either the cylinder cap or the lock cylinder is also provided. The exterior surface and the circumferential groove of the cylinder ring are case hardened.

REFERENCES:
patent: 2282983 (1942-05-01), Lach
patent: 2482177 (1949-09-01), Harbison
patent: 2489484 (1949-11-01), Dyson
patent: 3823584 (1974-07-01), Gill
patent: 3835675 (1974-09-01), Lippisch
patent: 4112715 (1978-09-01), Uyeda
patent: 4290279 (1981-09-01), Fish et al.
patent: 4548058 (1985-10-01), Bahry et al.
patent: 4776187 (1988-10-01), Evans et al.

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