Electric switch concealing hinge

Details Electric switch concealing hinge Electric switch concealing hinge

1978-07-10

1980-07-08

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Permanent magnet-actuated switches

200 617, 335207, H01H 3600

Patent

active

042119901

ABSTRACT:
A hinge is secured to the jamb of a door frame and to a door in the frame. Behind the jamb leaf of the hinge the jamb is provided with a hole that is concealed by the hinge. The back of the jamb leaf is provided with a recess facing the hole. An electric switch and its operating magnet are mounted in a housing that is held in the jamb hole and projects into the jamb leaf recess. The housing is not attached to the hinge. In case the hinge leaves are substantially parallel when the door is closed, a ferrous area of the door leaf will activate the switch. If the hinge leaves are at right angles to each other when the door is closed, a ferrous metal area of the edge of the door itself activates the switch.

REFERENCES:
patent: 3896404 (1975-07-01), Peterson
patent: 4072917 (1978-02-01), Haag et al.
patent: 4075588 (1978-02-01), Verger et al.

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