Caster device

Details Caster device Caster device

2011-08-09

2011-08-09

Batson, Victor (Department: 3677)

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

Casters

Locked

Reexamination Certificate

active

07992254

ABSTRACT:
There is provided a caster device including a caster, a crank shaft, a rotating member, a pushing member and a connecting rod. The crank shaft is coaxially coupled to a reciprocatingly rotatable cam element of the caster. The rotating member is rotatably coupled to a movable object. The rotating member has a plurality of pins spaced apart from one another in a circumferential direction. The pushing member is vertically movably coupled to the movable object. The pushing member rotates the rotating member by contact with the pin. The connecting rod and the crank shaft convert a rotation of the rotating member to a reciprocating rotation of the cam element. The caster is set to one of a plurality of operating modes according to the reciprocating rotation of the cam element.

REFERENCES:
patent: 3363725 (1968-01-01), Lorrance
patent: 3431584 (1969-03-01), Maslow
patent: 4410194 (1983-10-01), Steilen
patent: 4526253 (1985-07-01), Schmidt
patent: 5774936 (1998-07-01), Vetter
patent: 6520460 (2003-02-01), Hallberg et al.
patent: 6598247 (2003-07-01), Heimbrock et al.
patent: 7200894 (2007-04-01), Block et al.
patent: 4318546 (1994-12-01), None
patent: 1810652 (2007-07-01), None
patent: 1438530 (1976-06-01), None
patent: WO 2004/080363 (2004-09-01), None

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