Vacuum cleaner power drive

Details Vacuum cleaner power drive Vacuum cleaner power drive

1984-10-22

1986-10-07

Moore, Chris K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

180 193, A47L 900

Patent

active

046150714

ABSTRACT:
A vacuum cleaner having an improved power drive utilizing a ball disc transmission. In one form, the transmission is self-centering for automatic return thereof to a position wherein the wheel drive is effectively locked. The transmission is arranged to permit free wheeling when desired by suitable manipulation of the control provided for controlling the transmission. In another illustrated form, the transmission is arranged to provide free wheeling when the transmission is returned to a minimum speed arrangement. The system provides a smooth, accurately controllable power drive of the vacuum cleaner.

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patent: 4011765 (1977-03-01), Tippmann
patent: 4155143 (1979-05-01), Garbe
patent: 4347643 (1982-09-01), Bair, III

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