Brushing – scrubbing – and general cleaning – Machines – Brushing
Patent
1975-05-21
1977-08-02
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Machines
Brushing
15DIG2, B60S 306
Patent
active
040390144
ABSTRACT:
The car wash apparatus includes two opposed side brush assemblies, each comprised of two brushes supported by respective independently powered arms pivotally mounted upon a common pivot member. The arms are of such angular configurations that, with respect to the apparatus centerline, the opposed side brushes can be swung oppositely to and from overlapping washing positions so disposed that the side and end surfaces of the car are fully contacted, regardless of the width of the car. Contact pressure applied by each brush is controlled and independently maintained substantially constant such that substantially the same brush contact pressure is applied to cars of varying widths. To minimize length, the pivot members of the two side brush assemblies are located directly opposite one another. Additionally, the apparatus may include a rotatable top brush assembly including angular arms capable of washing the top surfaces of automobiles, trucks, vans and the like.
REFERENCES:
patent: 3237229 (1966-03-01), Weigele et al.
patent: 3456275 (1969-07-01), Solomon
patent: 3523320 (1970-08-01), Williams
patent: 3593357 (1971-07-01), Oldham
patent: 3720972 (1973-03-01), Ennis
patent: 3750212 (1973-08-01), Bernardi
patent: 3931660 (1976-01-01), Capra
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