Caster with brake unit and direction unit

Details Caster with brake unit and direction unit Caster with brake unit and direction unit

2011-01-04

2011-01-04

Batson, Victor (Department: 3677)

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

Casters

Locked

Reexamination Certificate

active

07861370

ABSTRACT:
A caster includes a casing having a shank and a locking unit is located at a lower end of the shank. Two wheels are connected to two sides of the casing by a shaft and an inner gear is connected to each of the two wheels. A direction unit is located in the casing and includes a first lever and an opening, the first lever connects the direction unit to the locking unit. A brake unit is located in the casing and includes a second lever. The second lever connects the brake unit to the locking unit and the inner gears. The second lever is engaged with the opening of the first lever and shares a common pivot with the first lever so as to respectively brake the caster and control direction of the caster.

REFERENCES:
patent: 1671774 (1928-05-01), McIntosh
patent: 2484094 (1949-10-01), Jackson
patent: 2777546 (1957-01-01), Kelley
patent: 3571842 (1971-03-01), Fricke
patent: 4035864 (1977-07-01), Schroder
patent: 4835815 (1989-06-01), Mellwig et al.
patent: 5191675 (1993-03-01), Ishikura
patent: 5988323 (1999-11-01), Chu
patent: 6360851 (2002-03-01), Yang
patent: 6532624 (2003-03-01), Yang
patent: 7516512 (2009-04-01), Tsai
patent: 2002/0069478 (2002-06-01), Trivini
patent: 2006/0016949 (2006-01-01), Payne
patent: 2009/0019670 (2009-01-01), Tsai
patent: 2009/0276977 (2009-11-01), Liao

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