Electric key

Details Electric key Electric key

1988-02-18

1989-08-08

Brown, Peter R.

Closure fasteners

Trippers

Sliding bolt, swinging detent

292144, 292150, E05B 4700

Patent

active

048546194

ABSTRACT:
An electric key has a self-holding electromagnet for attracting movable means holding a locking block in its nonconductive state and for releasing the movable means in its conductive state by a spring. The movable means is returned by a hand-operation to a position where it is attracted on the electromagnet. This results in the saving of electric power.

REFERENCES:
patent: 1361317 (1920-12-01), Dulczewski et al.
patent: 1377061 (1921-03-01), Deeg
patent: 1405369 (1922-01-01), Watson
patent: 2466481 (1949-04-01), Royal
patent: 2786701 (1957-03-01), Povlich
patent: 3069193 (1962-12-01), Kirk
patent: 3751086 (1973-08-01), Geringer
Japanese Patent Laid Open Publication No. 38800/1974.
Japanese Patent Publication No. 45278/1976.
Japanese Patent Publication No. 53900/1971.

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