Vacuum cleaner

Details Vacuum cleaner Vacuum cleaner

2008-01-22

2008-01-22

Redding, David (Department: 1744)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S346000, C015S327300

Reexamination Certificate

active

11179935

ABSTRACT:
An electric vacuum cleaner of the present invention includes: a base plate connected to the lower face of a cleaner body so that the base plate is freely movable up and down, and having an exhaust hole formed in a surface facing the surface to be cleaned for blowing exhaust air; an extensible air duct, interposed between the base plate and the cleaner body, for guiding the exhaust air from an intake fan to the base plate; a dust suction nozzle supported on a part of the base plate and connected to the suction side of the intake fan; and wheels, mounted on the lower face of the cleaner body, for supporting the cleaner body on the surface to be cleaned when the base plate is moved up.

REFERENCES:
patent: 4204298 (1980-05-01), Handa et al.
patent: 5930864 (1999-08-01), Inoue et al.
patent: 5974625 (1999-11-01), Garner
patent: 2002/0129461 (2002-09-01), Wegelin et al.
patent: 3468401 (2003-05-01), None

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