Reverse Rotation Protection For Borehole Pumps
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United States of America Patent
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app pub date -
Oct 25, 2013
filing date -
Apr 27, 2011
priority date (Note) -
Abandoned
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Abstract
A reverse rotation protection for borehole pumps is disposed in a drive head. The reverse rotation protection includes a housing and a clamping tool for securing a polished rod. The clamping tool includes at least two exchangeable contact elements with which the polished rod can be fixed releasably.
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