Drilling tool having an expandable bladder and method for...

Details Drilling tool having an expandable bladder and method for... Drilling tool having an expandable bladder and method for...

2005-12-13

2005-12-13

Bagnell, David (Department: 3672)

Boring or penetrating the earth

Processes

C175S267000, C175S292000, C175S265000, C175S434000

Reexamination Certificate

active

06973978

ABSTRACT:
A drilling tool having an expandable bladder and a method for using the same are provided. The drilling tool includes a tool body having an interior cavity, a plurality of extendable arms coupled with the tool body, and an expandable bladder at least partially disposed within the interior cavity of the tool body. The expandable is operable to deploy the extendable arms from a retracted position relative to the exterior surface of the tool body to an extended position relative to the exterior surface of the tool body.

REFERENCES:
patent: 3180437 (1965-04-01), Kellner et al.
patent: 4503919 (1985-03-01), Suied
patent: 5090480 (1992-02-01), Pittard et al.
patent: 5226487 (1993-07-01), Spektor
patent: 6189631 (2001-02-01), Sheshtawy
patent: 6732817 (2004-05-01), Dewey et al.
patent: 2004/0208717 (2004-10-01), Greenhalgh
Notification of Transmittal of The International Search Report and the Written Opinion of International Application No. PCT/US2004/012372, filed Apr. 22, 2004, and authorized by Jean-Marie Geiswiller-Bouvet (12 pages), Aug. 25, 2004.

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