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US 6,892,420 B1Granted
Vacuum cleaner with hair wrap cutter
AssigneeBISSELL Homecare, Inc.
InventorsDavid L. Haan, Tom Minh Nguyen
Life of this patent
Estimating the term…
Abstract
A vacuum cleaner that has a rotary floor agitator driven by a motor has a hair cutter blade mounted adjacent a motor shaft that drives the agitator and/or at the ends of the agitator. The agitator is driven by an electric motor through a drive belt. The cutter blade(s) are designed to sever elongate particles, such as hair or threads that would build up on the agitation brush, drive belt and motor output shaft to hinder the operation of the brush and belt or otherwise dislodged the belt from the motor shaft.
Claims18
A vacuum cleaner comprising;
- a housing defining an agitation cavity and a suction nozzle;
- a suction source in fluid communication with the suction nozzle;
- an agitation brush mounted in the agitation cavity for rotation about a brush axis;
- an agitation brush drive connected to the agitation brush for rotating the agitation brush about the brush axis;
- the improvement comprising,
- at least one cutting blade positioned adjacent a portion of the agitation brush drive to prevent buildup of elongate particles on the portion of the agitation brush drive.
3 more elements
A vacuum cleaner comprising;
- a housing defining an agitation cavity and a suction nozzle;
- a suction source in fluid communication with the suction nozzle;
- an agitation brush mounted in the agitation cavity for rotation about a brush axis;
- an agitation brush drive connected to the agitation brush for rotating the agitation brush about the brush axis;
- the improvement comprising,
- at least one cutting blade mounted to the housing adjacent a portion of the agitator brush to prevent buildup of elongated particles on the portion of the agitation brush.
3 more elements
Dependencies are inferred from the claim text.