Generator system for a vacuum cleaner

Details Generator system for a vacuum cleaner Generator system for a vacuum cleaner

1994-07-25

1996-11-12

Scherbel, David

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15339, A47L 928

Patent

active

055727670

ABSTRACT:
A vacuum cleaner includes a controlling valve in a ventilating path to a runner of an electric generator which rotates respondingly to a suction force, a rotating angle of the controlling valve is varied corresponding to an increase of the suction force so that an increase of the air flow across the runner is suppressed, thus an increase of a voltage generated by the electric generator is suppressed.

REFERENCES:
patent: 3011925 (1961-12-01), Holtzclaw
patent: 3069068 (1962-12-01), Hansen
patent: 4399585 (1983-08-01), Kullik et al.
patent: 4514874 (1985-05-01), Kurz
patent: 5033151 (1991-07-01), Kraft et al.
patent: 5201095 (1993-04-01), Choi

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