Caster for vacuum cleaner and vacuum cleaner having the same

Details Caster for vacuum cleaner and vacuum cleaner having the same Caster for vacuum cleaner and vacuum cleaner having the same

2006-12-12

2006-12-12

Snider, Theresa T. (Department: 1744)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S327200

Reexamination Certificate

active

07146680

ABSTRACT:
A caster structure for a vacuum cleaner is provided which allows the main body of the vacuum cleaner to be stably positioned at an incline. The caster structure is rotatably supported on a front portion of a bottom surface of the main body of the vacuum cleaner, and includes a caster body which has a planar rear surface, and a caster roller rotatably installed in the caster body52.The planar rear surface of the caster body includes a slip-prevention protrusion which extends across the planar rear surface to prevent slippage of the main body of the vacuum cleaner when the main body is positioned at an incline. The caster structure may include a single caster, or a pair of casters positioned side by side on the bottom surface of the main body of the vacuum cleaner.

REFERENCES:
patent: 292797 (1884-02-01), Eberle
patent: 2659100 (1953-11-01), Cramer
patent: 2814358 (1957-11-01), Beede et al.
patent: 3210793 (1965-10-01), Waters
patent: 3881535 (1975-05-01), Du Bois et al.
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patent: 5701631 (1997-12-01), Lindquist
patent: 6928690 (2005-08-01), Ji
patent: 2005/0015917 (2005-01-01), Mattingly et al.
patent: 3-251220 (1991-11-01), None

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