Planetary gear retrieval system
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United States of America Patent
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Oct 21, 2014
Grant Date -
Oct 24, 2013
app pub date -
Jan 9, 2013
filing date -
Apr 20, 2012
priority date (Note) -
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Abstract
A planetary gear retrieval system for pulling a sled at a constant velocity along an interior of a pipe. The system includes a network of gears, one of the gears powered by a gear motor, which is in operable communication with a variable speed microcontroller. A chain is threaded through the network of gears and an end of the chain is connected to the sled.
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