Door closer

Details Door closer Door closer

1982-12-27

1984-09-18

Kannan, Philip C.

Movable or removable closures

With means mounting closure for reciprocation

16 80, E05D 1506, E05F 108

Patent

active

044715757

ABSTRACT:
An externally mounted device for automatically closing sliding panels such as screen door panels with a spring and a pneumatic cylinder mounted between the frame surrounding the panel and a pivot arm with a wheel which rides within a track installed on the panel itself, so that opening the panel extends the spring, biasing the pivot arm and the panel associated therewith towards the closed position. Upon release of the panel the pneumatic cylinder controls the rate at which the panel closes.

REFERENCES:
patent: 1515155 (1924-11-01), Meagher
patent: 2593403 (1952-04-01), Bailey
patent: 3398424 (1968-08-01), Nieman
patent: 3561161 (1971-02-01), Green
patent: 3887962 (1975-06-01), Mills
patent: 4003102 (1977-01-01), Hawks et al.
patent: 4004372 (1977-01-01), Beard et al.
patent: 4126912 (1978-11-01), Johnson
patent: 4301623 (1981-11-01), Demukai

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