Downhole cable gripping/shearing device

Details Downhole cable gripping/shearing device Downhole cable gripping/shearing device

2011-06-21

2011-06-21

Thompson, Kenneth (Department: 3672)

Wells

Means for cutting cable or rope below ground

Reexamination Certificate

active

07963319

ABSTRACT:
Embodiments of the present invention generally relate to methods and apparatuses for gripping and shearing a downhole cable. In one embodiment, a line cutter mandrel includes: a tubular mandrel; a pocket disposed along an outer surface of the mandrel and longitudinally coupled to the mandrel; a channel disposed through the pocket for receiving a cable; and a line cutter. The line cutter includes a blade, is operable to engage an outer surface of the cable in a gripping position, is operable to at least substantially sever the cable with the blade in a cutting position, and is operable from the gripping position to the cutting position by relative longitudinal movement between the cable and the pocket.

REFERENCES:
patent: 917555 (1909-04-01), Davin
patent: 4250960 (1981-02-01), Chammas
patent: 4598769 (1986-07-01), Robertson
patent: 4738312 (1988-04-01), Wittrisch
patent: 5435394 (1995-07-01), Robertson
patent: 6789627 (2004-09-01), Leismer
patent: 6971449 (2005-12-01), Robertson
patent: 6997262 (2006-02-01), Palmer et al.
Kevin L. Gray, U.S. Appl. No. 12/132,699, filed Jun. 4, 2008.

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