Vacuum cleaning nozzle

Details Vacuum cleaning nozzle Vacuum cleaning nozzle

2005-09-16

2010-06-29

Redding, David A (Department: 3723)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S389000, C015S391000, C015S392000

Reexamination Certificate

active

07743463

ABSTRACT:
An air-powered vacuum cleaning nozzle has an agitator brush rotated by an air turbine powered by a source of suction air. A plurality of air inlet openings are formed adjacent the agitator brush. A generally flat friction drive belt extends from a bearing shaft of the air turbine to the midpoint of the agitator brush for rotating the brush. The bearing shaft is mounted in a pair of spaced rubber bushings to absorb vibration and reduce noise. The nozzle includes a housing formed by one-piece top and bottom housing members removably joined together securing the air turbine therebetween. A cover plate removably secured to the outside surface of the bottom housing member forms a protective passage for the drive belt and a suction passage between an air inlet adjacent the agitator brush and the air turbine chamber.

REFERENCES:
patent: 4300262 (1981-11-01), Rodowsky, Jr. et al.
patent: 4766640 (1988-08-01), Martin et al.
patent: 4837888 (1989-06-01), Maier
patent: 5701633 (1997-12-01), Jonischus
patent: 6526953 (2003-03-01), Inagaki
patent: 6711777 (2004-03-01), Frederick et al.
patent: 6779231 (2004-08-01), Stegens et al.
patent: 2005/0251953 (2005-11-01), Hackwell et al.

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