Handling and recovery devices for tubular members and associated methods
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United States of America Patent
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Jan 17, 2017
Issued Date -
N/A
app pub date -
Feb 27, 2014
filing date -
Dec 31, 2013
priority date (Note) -
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Abstract
Implementations described herein include a hoisting device and method for handling, coupling and recovery of tubular members such as drill string components. The hoisting device has a self-energizing gripping means configured to releasably engage a drill string component. In one aspect, the self-energizing gripping means can be operable to increase at least one of a radial biasing force and a contact friction force applied to a drill string component, causing the gripping means to increase the overall gripping force applied to the component with minimal effort exerted by a hoisting device operator.
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