Multi-speed brush control

Details Multi-speed brush control Multi-speed brush control

1979-08-20

1981-04-21

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

15385, 51177, A47L 1116, A47L 11202

Patent

active

042623820

ABSTRACT:
An improvement for floor maintenance equipment employing electrically driven scrubbing or polishing brushes including means for varying the speed of the brush motors. Two brush speeds are provided by switching apparatus which change the interconnection of the brush motors from series to parallel and from parallel to series. This results in a substantial change in motor speed and power.

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patent: 3875463 (1975-04-01), Reuter et al.
patent: 4136491 (1979-01-01), Redifer

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