Tank configuration for a small floor scrubber

Details Tank configuration for a small floor scrubber Tank configuration for a small floor scrubber

1995-01-13

1996-10-22

Scherbel, David

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15353, A47L 700, A47L 1130

Patent

active

055664229

ABSTRACT:
A small floor scrubbing machine is powered by a centrally located battery pack, with a recovery tank for used scrubbing solution comprised of connected chambers located on four sides of and beneath the batteries, and a tank for clean solution in a lid over the recovery tank and batteries. A partial partition in the chamber behind the batteries effectively divides it into two chambers. A vacuum fan draws air and used solution into one rear chamber of the recovery tank and exhausts air to atmosphere from the other rear chamber. The extended airflow path from one rear chamber to the other around three sides of the battery pack allows mist and foam to settle out of the air stream before it reaches the vacuum fan inlet. The front and rear chambers provide plenum space to reduce the airflow velocity. Openings in the partition between the rear tanks bypass increasing amounts of air directly from one rear chamber to the other as the recovery tank fills with water, thus compensating for the diminishing airflow space above the water and controlling the velocity of the airflow. The arrangement provides improved foam control in the limited space available in a small scrubber, a constant center of gravity as the solution tank empties and the recovery tank fills during normal operation, and easy access to the recovery tank for cleaning.

REFERENCES:
patent: 2635277 (1953-04-01), Belknap
patent: 2635278 (1953-04-01), Belknap
patent: 2726807 (1955-12-01), Lewis
patent: 3402420 (1968-09-01), Schaeffer
patent: 4233706 (1980-11-01), Kauffeldt
patent: 4287635 (1981-09-01), Jacobs
patent: 4314385 (1982-02-01), Wimsatt
patent: 4393538 (1983-07-01), Olson
patent: 4464810 (1984-08-01), Karpanty
patent: 4483041 (1984-11-01), Waldhauser

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