Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 2, 2010
Patent Application Number
11997446
Date Filed
August 7, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
A downhole apparatus comprises a body, extendable members mounted on the body and being movable between retracted and extended configurations, and a remotely operable retaining arrangement for maintaining the extendable members in the retracted configuration. The extendable members may be cutters, such that the apparatus may be a cutting apparatus, such as a reamer. An operator may control the apparatus to retain the cutting members in the retracted configuration, or prevent the extension of the cutting members.
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