Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1986-03-14
1987-06-30
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15320, 15340, A47L 11204
Patent
active
046759352
ABSTRACT:
A floor scrubber has rotating brushes for scrubbing a floor, drive motors for the brushes, and a brush height control circuit for raising and lowering the brushes in accordance with a desired brush pattern. The scrubber includes a solution tank, a recovery tank and a detergent tank for application and recovery of the cleaning solution. A solution tank pump, a detergent tank pump and a fan for use in vacuuming used cleaning solution into the recovery tank are each connected to their respective tanks. There are actuating means connected to the brush drive motors, pumps, fan and brush height control circuit. Sensors monitor the solution tank, recovery tank and detergent tank, as well as the speed of the floor scrubber. A start signal for the actuating means is only provided when the sensors determine certain prestart conditions have been met in the solution tank, recovery tank, detergent tank and a certain predetermined speed has been reached for the floor scrubber.
REFERENCES:
patent: 3216036 (1965-11-01), Rockwood et al.
patent: 3456275 (1969-07-01), Solomon
patent: 3952361 (1976-04-01), Wilkins
patent: 4114711 (1978-09-01), Wilkins
patent: 4207649 (1980-06-01), Bates
Field Bruce F.
Grimes Charles E.
Kasper Joseph G.
Westrum Keith R.
Moore Chris K.
Tennant Company
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