Vacuum cleaner with constant air flow

Brushing – scrubbing – and general cleaning – Machines – With air blast or suction

Patent

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Details

318644, G05D 706, A47L 522, H02P 728

Patent

active

043995853

ABSTRACT:
A vacuum cleaner with constant air flow for household and industrial purposes. The vacuum cleaner includes a suction fan driven by an electric motor. An air flow measuring device is arranged in the working air flow of the suction fan, and has an electrical output signal proportional to the air flow. This electrical output signal is conveyed to a regulating and control circuit which adjusts the working air flow to a predetermined value as a function of the output signal.

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