Door closer

Details Door closer Door closer

1975-02-25

1976-04-06

Larkin, Geo. V.

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

Closers

Spring

E05F 108

Patent

active

039479188

ABSTRACT:
A door closer includes a cam mounted on a door frame which has a straight portion, a curved portion providing increased compression on a spring biased cam follower and a notch for holding the door in an open position. The cam includes longitudinal serrations and a pair of transverse openings so that the cam can be adjusted inwardly and outwardly relative to the door and the follower. The follower is mounted to the door, as is the cam to the door frame, in such a manner that no mounting screws are visible. Each is provided with mounting plates and the mounting plates are in turn provided with cover plates. The housing which is secured to the housing mounting plate includes means to adjustably modify the bias on the cam follower.

REFERENCES:
patent: 753998 (1904-03-01), Moore
patent: 2513751 (1950-07-01), Semar
patent: 3608129 (1971-09-01), Heyer et al.
patent: 3763519 (1973-10-01), Favre

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