Vacuum cleaner head

Details Vacuum cleaner head Vacuum cleaner head

1999-06-11

2000-11-28

Till, Terrence R.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15390, A47L 530

Patent

active

061517526

ABSTRACT:
A vacuum cleaner head has a housing having a turbine chamber and a connection tube connecting the turbine chamber to a suction aggregate of a vacuum cleaning machine. The housing has a suction opening and the turbine chamber has an inflow opening communicating with the suction opening. Air flow is sucked in by the suction aggregate through the suction opening and the inflow opening. A rotary roller brush is mounted in the housing close to the suction opening such that bristles of the roller brush project outwardly through the suction opening when the brush is in a lowest position. An air turbine is mounted in the turbine chamber such that the air turbine is acted upon by the air flow passing through the inflow opening. A device is provided for axially displacing the air turbine relative to the inflow opening when the power uptake of the roller brush is reduced.

REFERENCES:
patent: 5293665 (1994-03-01), Worwag
patent: 5345650 (1994-09-01), Downham et al.
patent: 5950275 (1999-09-01), Worwag

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