Closer arm assembly for an automatic door closer

Details Closer arm assembly for an automatic door closer Closer arm assembly for an automatic door closer

2005-11-30

2008-11-04

Mah, Chuck Y. (Department: 3677)

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

Checks and closers

Spring and flexible link

C016S049000

Reexamination Certificate

active

07444713

ABSTRACT:
Closer arm assembly includes a main arm having a first end fixed to the output shaft of a closer fixed to one of a door and a door jamb so that the main arm pivots when the output shaft rotates, and a connecting arm having a first end pivotably connected to the main arm and a second end connected to the other of the door and the door jamb. The connecting arm contacts a stop to limit relative pivoting of the arms, the stop including a cushion with a contact surface which suppresses noise as the connecting arm contacts the cushion. The stop can be in the form of a spring loaded bumper fixed to a soffit plate, or a pin fixed to the second end of the main arm. A hold open device can be fixed to the connecting arm for engaging a feature on either the soffit plate or the main arm, the hold open device having a spring loaded detent which is released by manually turning a knob.

REFERENCES:
patent: 2797117 (1957-06-01), Seay et al.
patent: 3259936 (1966-07-01), Sheridan
patent: 3860993 (1975-01-01), Matuska
patent: 3911526 (1975-10-01), Christy et al.
patent: 4069546 (1978-01-01), Reichlin
patent: 4102005 (1978-07-01), Schnarr et al.
patent: 5517720 (1996-05-01), Anderson et al.
patent: 10348436 (2005-06-01), None
patent: 663503 (1995-07-01), None
patent: 08128256 (1996-05-01), None
patent: 2003184417 (2003-07-01), None

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