Door hinge with a built-in damper

Details Door hinge with a built-in damper Door hinge with a built-in damper

1997-10-15

1999-02-09

Mah, Chuck Y.

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

Checks and closers

Hinge

16 54, E05F 320

Patent

active

058678662

ABSTRACT:
A door hinge assembly with a damper mechanism composing a cylindrical housing with caps on both ends, a shaft eccentrically mounted on the cylindrical body, and two plates mounted on the shaft. Two chambers are constructed with the above arrangement and both chambers are filled with oil-hydraulic fluid. When the shaft rotates with respective to the cylindrical body, one of the two chambers is compressed. With means of communicating the two chambers, a desirable dampening force is obtained. Bias spring(s) can be incorporated into this door hinge assembly to provide closing force, so this assembly functions as a door closer.

REFERENCES:
patent: 685403 (1901-10-01), Hughes
patent: 1134510 (1915-04-01), Busch
patent: 1176014 (1916-03-01), Wyeth et al.
patent: 1701022 (1929-02-01), Thornton
patent: 2490258 (1949-12-01), Diebel
patent: 4756051 (1988-07-01), Shy
patent: 4829628 (1989-05-01), Vuksic
patent: 5090521 (1992-02-01), Miura

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