Hinge device

Details Hinge device Hinge device

2005-03-29

2005-03-29

Mah, Chuck Y. (Department: 3676)

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

Hinge

Resiliently biased hinge

C016S342000, C016S337000

Reexamination Certificate

active

06871383

ABSTRACT:
A hinge device includes a housing (10), a shaft (20), and a pair of springs (30) coiled in opposite directions from each other. The housing defines a through hole (11) and a slot (14) therein. The through hole includes a large hole (13) and a small hole (12), the large hole communicating with the slot. The shaft includes a first portion (22). Each spring has a free end (34), and forms a plurality of protrusions (32) on an inner surface thereof. The shaft is rotatably received in the through hole of the housing. The springs are frictionally positioned around the first portion of the shaft, the free ends of the springs being retained in the slot of the housing.

REFERENCES:
patent: 4528718 (1985-07-01), Brockhaus
patent: 5197704 (1993-03-01), Kitamura
patent: 5354028 (1994-10-01), Kitamura
patent: 5503491 (1996-04-01), Lu
patent: 5566048 (1996-10-01), Esterberg et al.
patent: 5749124 (1998-05-01), Lu
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patent: 5896622 (1999-04-01), Lu
patent: 6145797 (2000-11-01), Uehara
patent: 6230365 (2001-05-01), Lu
patent: 6301748 (2001-10-01), Su-Man
patent: 1047337 (1998-02-01), None
patent: 11247837 (1998-09-01), None
patent: 11247840 (1999-09-01), None
patent: WO 9516094 (1995-06-01), None

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