Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1993-10-06
1994-10-18
Gerrity, Stephen F.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15339, A47L 928
Patent
active
053555481
ABSTRACT:
An apparatus, for example a vacuum cleaner, is provided which comprises an electric motor with variable motor power, a control circuit for controlling the variable motor power, and a vacuum chamber for generating a partial vacuum by means of the electric motor and, the control circuit being effective to temporarily increase the variable motor power to a power level above a nominal motor power in dependence upon the partial vacuum generated in the vacuum chamber.
REFERENCES:
patent: 1904973 (1933-04-01), Smellie
patent: 2789660 (1957-04-01), Brown
patent: 3577869 (1971-05-01), Hosokawa et al.
patent: 4021879 (1977-05-01), Brigham
patent: 4654924 (1987-04-01), Getz et al.
patent: 4920607 (1990-05-01), Kohn
patent: 4942640 (1990-07-01), Hayashi et al.
patent: 4991253 (1991-02-01), Rechsteiner
patent: 5033151 (1991-07-01), Kraft et al.
patent: 5072484 (1991-12-01), Edlund
Bartlett Ernestine C.
Gerrity Stephen F.
U.S. Philips Corporation
LandOfFree
Apparatus comprising an electric motor with variable motor power does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus comprising an electric motor with variable motor power, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus comprising an electric motor with variable motor power will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2363611