Invention Application
US20130281255A1 PLANETARY GEAR RETRIEVAL SYSTEM 有权
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PLANETARY GEAR RETRIEVAL SYSTEM
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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