Door closer shaft

Details Door closer shaft Door closer shaft

1981-08-04

1983-12-27

Silverberg, Fred

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

Closers

16 65, 16 80, 16DIG10, E05F 300

Patent

active

044222130

ABSTRACT:
An axially extending closer shaft for a door closer is made up of an axially extending first section mounted in a door closer housing and an axially extending second section aligned with and connected to the first section and located outside of the housing. A plurality of annular grooves are formed in the second section extending perpendicularly of the shaft axis and spaced apart in the direction of the shaft axis. The second section can be cut to the desired length in the plane of one of the grooves. The first and second sections can be connected together by a plurality of bolts extending in the axial direction of the shaft or by a single shaft and coupling balls positioned within recesses in the first shaft and in bores in the second shaft.

REFERENCES:
patent: 2639459 (1953-05-01), Werner
patent: 4240462 (1980-12-01), Bankstahl

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