Automatic door control apparatus

Details Automatic door control apparatus Automatic door control apparatus

1991-05-14

1992-06-23

Kannan, Philip C.

Movable or removable closures

With operator for movably mounted closure

Coaxial of closure pivot

49139, E05F 1510

Patent

active

051232049

ABSTRACT:
An apparatus for controlling the opening and closing of an automatic door. The apparatus includes an L-shaped housing having a first portion disposed below ground level for housing a speed reduction mechanism and a second portion disposed above ground level and positioned behind a door post for housing a motor and control mechanism. The speed reducing mechanism includes a gear train to provide a desired reduced motor speed and the control mechanism is driven by the motor in synchronism with the speed reducing mechanism to control the opening and closing angle of the door.

REFERENCES:
patent: 2108328 (1938-02-01), Carnahan
patent: 3996697 (1976-12-01), Bailey et al.
patent: 4098023 (1978-07-01), Slopa
patent: 4186521 (1980-02-01), Hunter
patent: 4735018 (1988-04-01), Duncan et al.

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