Core lifter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jul 8, 2014
Grant Date -
May 5, 2011
app pub date -
Nov 2, 2010
filing date -
Nov 3, 2009
priority date (Note) -
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Abstract
A core lifter may be used in a drilling system. An exterior surface of the core lifter may include a plurality of longitudinally-oriented recesses. The core lifter may include a raised contact feature that may extend inwardly away from a gripping surface of the core lifter. The core lifter may include a flared skirt configured to limit movement of the core lifter relative to a core lifter case. The core lifter may be formed via stamping a sheet of material.
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