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US 7,546,871 B2Granted
Downhole tool
AssigneeBaker Hughes Incorporated
InventorPeter Barnes Moyes
Life of this patent
Estimating the term…
Abstract
A device that relates to a downhole tool. The tool comprising, a tool body having first and second support portions, and at least one extendable assembly pivotally mounted between the first and second support portions. The extendable assembly is reconfigurable between a retracted configuration and an extended configuration by relative movement of the support portions.
Claims27
A downhole tool, comprising:
- a tool body having first and second support portions;
- at least one extendable assembly pivotally mounted between the first and second support portions, wherein the extendable assembly is reconfigurable between a retracted configuration and an extended configuration by relative movement of the support portions;
- and
- an outer sleeve assembly including a ratchet arrangement freely permitting relative movement of the support portions in one direction, and to selectively permit relative movement of the support portions in an opposite direction, the ratchet arrangement including a ratchet component defining a ratchet profile on an inner surface thereof for engaging a corresponding ratchet profile on an outer surface of a tool mandrel, the ratchet assembly further having a ratchet mandrel mounted on an outer surface of the tool mandrel, wherein the ratchet mandrel defines an aperture for receiving the ratchet component.
1 more element
Dependencies are inferred from the claim text.