Vacuum wall crawler
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United States of America Patent
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Sep 12, 2017
Issued Date -
N/A
app pub date -
Mar 21, 2014
filing date -
Mar 22, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates to a vacuum wall crawler having at least one vacuum track unit comprising a track frame, two pulleys provided in opposite ends of the track frame, and defining a wheelbase, an endless track arranged to circulate on the two pulleys, and comprising a flexible band, said flexible band comprising a plurality of apertures, and having a thickness, a vacuum distribution box provided in said track frame wherein the vacuum distribution box is in communication with a portion of the apertures to distribute a vacuum to the portion of apertures as the endless track circulates, where the thickness of the flexible band is 5-20% of the wheel base.
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