Airplane window polishing device
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United States of America Patent
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-
Nov 13, 1990
Grant Date -
N/A
app pub date -
Jan 10, 1989
filing date -
Jan 18, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An automatic polishing device is disclosed for automatic smooth polishing of windowpane from the outside of an airplane without the necessity of removing them from the airplane. The device of the present invention is provided with replaceable petal-shaped polishing pads of the same number as a required number of polishing steps such as rough, medium and finish polishing. Each pad is mounted on the exterior wall surface of an airplane and urged against the window surface with substantially constant pressure and is supplied with liquids for polishing and washing from a centrally-disposed opening.
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