Locking device

Details Locking device Locking device

1983-09-23

1984-07-24

Smith, Gary L.

Locks

Operating mechanism

Key

70358, 70385, 70386, 70387, E05B 2706, E05B 3504

Patent

active

044611617

ABSTRACT:
A locking device which is operated by an inserted perforated card includes a bolt with rows of bores and a body within the casing of the device corresponding having bores in line with the first named bores and tumbler units located in the aligned bores and selectively displaceable by means of the inserted card.

REFERENCES:
patent: 1417132 (1922-05-01), Barker
patent: 1527336 (1925-02-01), Voda
patent: 2326358 (1943-08-01), Hull
patent: 2388227 (1945-10-01), Heyer
patent: 3093993 (1963-06-01), Lord
patent: 3588397 (1971-06-01), Ellefson
patent: 3621688 (1971-11-01), Asmar et al.
patent: 3722243 (1973-03-01), Schiesterl
patent: 3780549 (1973-12-01), Schlage
patent: 3877267 (1975-04-01), Harris, Jr.
patent: 4111018 (1978-09-01), Pilvet
patent: 4149394 (1979-04-01), Sornes

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