Linear drive apparatus and method of controlling and using same for solar energy tracking
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United States of America Patent
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Apr 24, 2018
Issued Date -
N/A
app pub date -
Sep 27, 2013
filing date -
Nov 13, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A linear drive apparatus is provided. The linear drive apparatus may include an outer tube, a sealing end cap provided at the end of the outer tube, a screw provided in the outer tube, a drive nut provided on the screw in a threaded fit, an extension rod provided between the outer tube and the screw, a sealing assembly provided between the extension rod and the sealing end cap, and a waterproof and oil-proof ventilation stopper provided on the outer tube. One end of the screw may be connected to a drive mechanism. One end of the extension rod may be connected to the drive nut. The other end of the extension rod may pass through the sealing end cap.
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