US 7,743,463 B2Granted

Vacuum cleaning nozzle

AssigneeH-P Products, Inc.

InventorJames F. Smith

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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.

Claims17

Dependent claims

A vacuum cleaning nozzle comprising:

a housing having top and bottom housing members;
an agitator rotatably mounted in the housing;
a bearing shaft rotatably mounted in the housing by a pair of bearings mounted on the shaft and seated in a pair of opposed cup-shaped bearing supports, one of said bearing supports being formed in the top housing member and the other of said bearing supports being formed in the bottom housing member;
an air turbine rotatably supported in the housing by on the bearing shaft;
a friction drive belt operatively connected between the air turbine shaft and the agitator for rotatably driving said agitator;
and
an elastomeric mounting assembly including a pair of cup-shaped elastomeric mounts, each of said elastomeric mounts being seated in a respective one of the cup-shaped bearing supports for supporting the bearing shaft in the housing to reduce vibration and unbalanced forces exerted on the bearing shaft by the friction drive belt.

4 more elements

Dependencies are inferred from the claim text.