Multi-path hoisting systems
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United States of America Patent
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May 8, 2018
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N/A
app pub date -
May 14, 2015
filing date -
Dec 30, 2014
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Abstract
Various hoisting systems using multiple hoisting lines in shared block-and-tackle arrangements are provided. In one embodiment, an apparatus includes a hoisting system with multiple hoisting lines wound on a rotatable drum of a drawworks. The hoisting lines are continuous wire ropes that are reeved over a shared crown block and around a shared traveling block in a block-and-tackle arrangement to provide a mechanical advantage. Additional systems, devices, and methods are also disclosed.
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