Door closer

Details Door closer Door closer

1996-10-22

1998-09-08

Mah, Chuck

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

Checks and closers

Liquid

16 62, 16 79, E05F 310, E05F 108

Patent

active

058026703

ABSTRACT:
A door closer with an adjustable springiness has an adjusting screw located inside the pressure chamber and at the same time inside the pressure spring.

REFERENCES:
patent: 3042957 (1962-07-01), Muessel et al.
patent: 3675270 (1972-07-01), Jentsch
patent: 3724023 (1973-04-01), Tillmann
patent: 3838477 (1974-10-01), Evans et al.
patent: 4064589 (1977-12-01), Bejarano et al.
patent: 4358870 (1982-11-01), Hong
patent: 4785493 (1988-11-01), Tillmann et al.
patent: 5417013 (1995-05-01), Tillmann
patent: 5666692 (1997-09-01), Toledo

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