Door closer having arm/slide track connection

Details Door closer having arm/slide track connection Door closer having arm/slide track connection

1988-05-13

1989-06-13

Silverberg, Fred A.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Closers

16DIG17, 292275, E05F 100

Patent

active

048378909

ABSTRACT:
A door closer is disclosed having an operating arm with a track traveler which mounts a plurality of rollers. The rollers engage between them the opposite sides of a track on the door. The opposite sides of the track each have outward concave faces. The rollers are ball-shaped, conforming to the faces of the track. A door holder is also disclosed which may be adjustably fixed at a position along the track, the traveler and the holder having the mating parts of a snap fastener which, when engaged, hold releasably the door at a fixed hold-open position.

REFERENCES:
patent: 1732299 (1929-10-01), Bigland
patent: 2958089 (1960-11-01), Roehm et al.
patent: 3986742 (1976-10-01), Heaney
patent: 3996642 (1976-12-01), Atkins
patent: 4287639 (1981-09-01), Denton

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