Vacuum cleaner and suction nozzle structure thereof

Details Vacuum cleaner and suction nozzle structure thereof Vacuum cleaner and suction nozzle structure thereof

2005-04-06

2008-10-28

Snider, Theresa T (Department: 3723)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S334000, C015S387000

Reexamination Certificate

active

07441306

ABSTRACT:
Provided is a suction nozzle structure of a vacuum cleaner for enhancing a foreign particle suction efficiency. The suction nozzle structure includes: a suction tube in which a negative pressure is formed; a suction hole formed at a bottom of the suction nozzle structure such that air and foreign particles are sucked by the negative pressure of the suction tube; an agitator installed at an upper side of the suction hole; an air guide provided with an air suction passage communicating the suction hole with the suction tube, for guiding air flow; and a foreign particle rotation-preventing portion formed protruding from the air guide, for preventing a foreign particle from rotating.

REFERENCES:
patent: 3704482 (1972-12-01), Brannon
patent: 4426751 (1984-01-01), Nordeen
patent: 5008973 (1991-04-01), Worwag
patent: 6018845 (2000-02-01), Sueki et al.
patent: 6539577 (2003-04-01), Okuda et al.
patent: 7281297 (2007-10-01), Peacock et al.
patent: 2006/0026788 (2006-02-01), Fischer et al.

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