Brushing – scrubbing – and general cleaning – Machines – Brushing
Patent
1979-06-20
1981-09-22
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Machines
Brushing
15DIG2, B60S 306
Patent
active
042901618
ABSTRACT:
The brush assembly includes a brush mounted at the end of an arm member which moves the brush to various locations along the car passing through the carwash. The arm member comprises a single arm assembly having an outside and inside arm connected at a pivot. A support extends upward from a base. One end of the inside arm is attached to the support, and the arm assembly pivots above and close to the base. The brush extends upward from the end of the outside arm opposite the intermediate pivot and is rotated by a motor. A fluid control system may pivot the inside arm with respect to the base and the outside arm with respect to the inside arm. The support for the arm on the base is angled and the brush is angled to assist in pivoting the arm and rotating parts of the brush along the car. In one embodiment, the fluid driving system has two piston chamber systems, the first between the base and the inside arm, and the second between the inside arm and the outside arm, and a spring urges the arm assembly toward the car. Movement of the arms transfer fluid between the chambers to assist moving the arms. Alternatively, the fluid control system may merely slow opening of the arms. A portion of the water which is sprayed on the brush may be injected between the brush and its bearing to lubricate the rotating brush.
REFERENCES:
patent: 3581334 (1971-06-01), Follis
patent: 3772724 (1973-11-01), Wilson
patent: 3818531 (1974-06-01), Saunders
patent: 3926663 (1975-12-01), Gray
patent: 3969782 (1976-07-01), Williams
Fishering Peter M.
Fishering Ronald G.
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