Door closer with switch actuated thereby

Details Door closer with switch actuated thereby Door closer with switch actuated thereby

1974-07-15

1976-08-10

Downey, Kenneth

Movable or removable closures

Closure condition signal or indicator

335205, 200 6162, G08B 1308

Patent

active

039733572

ABSTRACT:
A door closer has a case set in the floor and a rotatable spindle projected from the case. The spindle supports a door and rotates with the door as the door pivots between open and closed positions. Within the case the spindle is coupled with a rotatable element which is acted upon by a return spring to bring the door to its closed position. The rotatable element carries a magnet which is located opposite to a magnetic reed switch on the case when the door is in a selected position and thereby closes a circuit to indicate the position of the door.

REFERENCES:
patent: 1748509 (1930-02-01), Forman
patent: 2866224 (1958-12-01), Ellis
patent: 3161742 (1964-12-01), Bagno
patent: 3497997 (1970-03-01), Sheckells

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