Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2007-10-16
2007-10-16
Snider, Theresa T. (Department: 1744)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S327700
Reexamination Certificate
active
10876151
ABSTRACT:
A canister vacuum cleaner has a canister assembly and a stair hugging swivel wheel assembly. The stair hugging swivel wheel assembly pivotally connects to the canister assembly and has both a pendulum and a wheel rotatably mounted to a housing thereof. During use, the pendulum projects from the housing under the influence of gravity to inhibit or otherwise prevent the stair hugging swivel wheel assembly from pivoting whenever the canister assembly becomes oriented in an inclined position, such as when placed on a stairway. Preferably, the pendulum mates with a recess in the canister assembly co-located with a circular track in which the stair hugging swivel wheel assembly pivots.
REFERENCES:
patent: 2088236 (1937-07-01), Faber
patent: 2248585 (1941-07-01), Ross et al.
patent: 3015123 (1962-01-01), Descarries
patent: 3104112 (1963-09-01), Crail
patent: 3731465 (1973-05-01), Ohira et al.
patent: 3820808 (1974-06-01), Brunning et al.
patent: 3881535 (1975-05-01), Du Bois et al.
patent: 4037291 (1977-07-01), Huempfner et al.
patent: 4509227 (1985-04-01), Keane
patent: 4592764 (1986-06-01), Ikezaki et al.
patent: 4945603 (1990-08-01), Herron, Jr.
patent: 5371922 (1994-12-01), Chern et al.
patent: 5720076 (1998-02-01), Clark
patent: 5937477 (1999-08-01), Dyson
patent: 6928690 (2005-08-01), Ji
patent: 6961976 (2005-11-01), Kuo
patent: 7146680 (2006-12-01), Kim
patent: 2297243 (1996-07-01), None
Crouch James T.
Mattingly Leon A.
Fanasonic Corporation of North America
King & Schickli PLLC
Snider Theresa T.
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