Door closer

Details Door closer Door closer

1983-05-16

1986-05-27

Schran, Donald R.

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

Closers

Spring and gear

16DIG39, 116204, E05F 108

Patent

active

045906394

ABSTRACT:
A door closer the closing force of which can be adjusted is provided with a device for indicating the selected closing force. The device used to indicate the prevailing closing force is actuated in dependence on the adjustment of the spring which determines the closing force.

REFERENCES:
patent: 1791896 (1931-02-01), Henning
patent: 2139592 (1938-12-01), Kirby
patent: 2660719 (1953-11-01), Stromberg
patent: 3934307 (1976-01-01), Lasier et al.

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