Locking and unlocking device

Details Locking and unlocking device Locking and unlocking device

1987-02-24

1988-11-15

Smith, Gary L.

Closure fasteners

Bolts

Sliding

292DIG62, 292150, 70282, E05C 1756, E05C 112

Patent

active

047844159

ABSTRACT:
A device for locking and unlocking any member, comprising a bolt slidably mounted within a body and having a rear part and a front part to co-operate with a notch provided in said member in which a first electromagnet operates with its core in the bolt, the rear part of which may co-operate with the core of a second electromagnet to hold the bolt against motion within the body in a locked position on the member or in an unlocked position.

REFERENCES:
patent: 188308 (1877-03-01), Sherman
patent: 966780 (1910-08-01), Thomas
patent: 1920080 (1933-07-01), Jenkins
patent: 1948217 (1934-02-01), Goodwin
patent: 2178313 (1939-10-01), Rossiter, Jr. et al.
patent: 2765648 (1956-10-01), Hatcher
patent: 3288524 (1966-11-01), Gordon
patent: 4021065 (1977-05-01), Geringer
patent: 4501203 (1985-02-01), Lyngstrup

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