Lock apparatus

Details Lock apparatus Lock apparatus

1981-07-22

1984-06-05

Wolfe, Robert L.

Locks

Operating mechanism

Using a powered device

70352, E05B 2500, E05B 4700

Patent

active

044520590

ABSTRACT:
The present invention relates to a lock system comprising a lock of the type where the combination of the lock is given by a more or less platelike code member which may be removed and substituted and where the lock is operated by means of a more or less platelike key member. The key member is equipped with a code adapted to the code of the code member. The lock comprises a housing and means intended to be activated by the code of the code member and/or the code of the key member, said means reading the codes. Parts of the code on the key member may be read mechanically, using blocking pins while parts of the code may be read optically and/or electronically by means of light diodes emitting infrared light.

REFERENCES:
patent: 3611763 (1971-10-01), Sedley
patent: 3733862 (1973-05-01), Killmeyer
patent: 4090175 (1978-05-01), Hart
patent: 4149394 (1979-04-01), Sornes
patent: 4286305 (1981-08-01), Pilat

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