Electric vacuum cleaner

Details Electric vacuum cleaner Electric vacuum cleaner

1998-11-03

2000-03-07

Moore, Chris K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15375, 15387, A47L 514

Patent

active

060323272

ABSTRACT:
A rotating brush including a hollow cylindrical rotor having through holes in its peripheral wall and bristles on its peripheral surface is provided in a nozzle of an upright electric vacuum cleaner. A reflux passage connecting a fan chamber in the cleaner body and an end of the rotor is provided so that a slip stream of an electric fan for producing a suction stream jets out into the nozzle from the rotor through the holes. A fan for sucking air outside the nozzle is provided at the other end of the rotor so that the sucked air also jets out into the nozzle through the holes. In another electric vacuum cleaner, the rotor of the rotating brush is not provided with through holes but the slip stream of the electric fan is caused to blow the peripheral surface of the rotating brush from its end.

REFERENCES:
patent: 1323925 (1919-12-01), Stewart
patent: 1718293 (1929-06-01), Hoover
patent: 2085700 (1937-06-01), Kitto
patent: 2331692 (1943-10-01), Hunt
patent: 2993224 (1961-07-01), Child
patent: 3694848 (1972-10-01), Alcala
patent: 3704482 (1972-12-01), Brannon
patent: 3872533 (1975-03-01), Proffit
patent: 4594749 (1986-06-01), Waterman
patent: 5168559 (1992-12-01), Williams
patent: 5647092 (1997-07-01), Miwa

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