Method and apparatus for closing a door

Details Method and apparatus for closing a door Method and apparatus for closing a door

1985-08-13

1987-12-01

Schran, Donald R.

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

Hinge

Resiliently biased hinge

16 76, 403146, E05F 108

Patent

active

047094451

ABSTRACT:
An apparatus for closing a door (14), the door closer assembly (10) preferably including a torsional spring unit (12) and a pneumatic check device (22). The torsional spring unit (12) can be attached to a door frame (16) through the use of a bracket (20) whereas the pneumatic check (22) can be attached to the door (14) through the use of a bracket (24). The amount of closing force generated by the torsional spring unit (12) can be adjusted by tensioning the torsional spring (26); locking the two housing components (34) and (46) together; repositioning the locked housing unit and the door (14); and releasing the housings (34) and (46) to "restore" the formerly stored closing force at a new door position.

REFERENCES:
patent: 521429 (1894-06-01), Bessonette
patent: 2066795 (1937-01-01), Moore
patent: 2102321 (1937-12-01), Keene
patent: 3426387 (1969-02-01), Bitney
patent: 3510986 (1970-05-01), Berkowitz
patent: 4050115 (1977-09-01), Gwozdz
patent: 4514878 (1985-05-01), Arneberg

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