Rope winder, petroleum instrument salvaging system and petroleum instrument hoisting system
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United States of America Patent
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Oct 2, 2018
Grant Date -
Apr 28, 2016
app pub date -
Oct 21, 2015
filing date -
Oct 23, 2014
priority date (Note) -
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Abstract
A rope winder, which has a rack, and a winding drum set on the rack that releases and retracts a rope. The rope includes a first turning wheel, an electronic counter, a calculating unit, a speed regulating unit and a control unit. The turning wheel has a groove which fits the rope. A petroleum instrument salvaging system which includes the rope winder and rope. One end of the rope is wound on the winding drum of the rope winder. A petroleum instrument hoisting system which includes the rope winder and a rope of which one end is wound on a winding drum of the rope winder.
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