Brushing – scrubbing – and general cleaning – Machines – Brushing
Patent
1981-05-07
1983-05-17
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Machines
Brushing
15 53AB, 15DIG2, B60S 306
Patent
active
043833446
ABSTRACT:
A vehicle rear vertical surface washing system comprising a horizontally movable carriage positionable within a frame adjacent the rear vertical surface of a vehicle and a vertically movable carriage which carries a rotary brush that washes and sweeps the rear vertical surface of the vehicle. Limit switches provide control signals to sequential logic implemented by relays and initiate the forward motion of the horizontal carriage toward the rear vertical surface of the vehicle at an appropriate point in the washing cycle. The light beam of an electric eye is broken when the carriage has moved adjacent the vertical surface, and provides a signal to halt the forward motion of the carriage. The rotary brush assembly mounted on the vertical carriage then travels downwardly washing and sweeping the vertical surface, and then reverses its direction and travels upwardly while rinsing and sweeping the vertical surface. The apparatus thus is independent of the length of the vehicle and the position of the vehicle within the frame, provided that the rear vertical surface has stopped within the limits of movement of the horizontal carriage.
REFERENCES:
patent: 2610342 (1952-09-01), Griffiths
patent: 2627080 (1953-02-01), Holmes
patent: 3060473 (1962-10-01), Vani
patent: 3332098 (1967-07-01), Smith
patent: 3425080 (1969-02-01), Dolitzsch et al.
patent: 3438077 (1969-04-01), Eubanks
patent: 3495287 (1970-02-01), Freimanis
patent: 3795929 (1974-03-01), Thompson
Northcutt Paul E.
Scraggs Charles R.
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