Cleaning and liquid contact with solids – Apparatus – Automatic controls
Patent
1985-05-21
1988-01-19
Hornsby, Harvey C.
Cleaning and liquid contact with solids
Apparatus
Automatic controls
134123, 134172, B08B 302
Patent
active
047199326
ABSTRACT:
An automatic vehicle washing apparatus is disclosed. The apparatus comprises a single support column, a boom assembly cantileverly supported on and hinged to pivot horizontally about the support column and mounted to move up and down on the support column. The boom assembly includes a magnetic catch to prevent the boom from pivoting during normal operation. Mounted on the boom are fluid dispensing nozzles and a photoelectric assembly which senses the relative position of the boom assembly and the contour of a vehicle being washed. The photoelectric assembly includes a plurality of pairs of photoelectric emitters and detectors, set such that the beam between each pair is at an angle with both the horizontal plane of vehicle movement and vertical plane containing the ends of the boom assembly. The photoelectric assembly is connected to a control means which controls a drive mechanism to raise and lower the boom assembly.
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Hornsby Harvey C.
PDQ Manufacturing Inc.
Stinson Frankie L.
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