Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Chaitanya Vempati0
Benjamin Baxter0
Miguel Bilen0
Steven Radford0
Volker Peters0
Gregory L. Ricks0
Holger Stibbe0
Jayesh R. Jain0
Date of Patent
July 18, 2017
Patent Application Number
14516340
Date Filed
October 16, 2014
Patent Citations Received
Patent Primary Examiner
Patent abstract
A drill bit includes a bit body; a pad associated with the bit body; a rate control device coupled to the pad that extends from a bit surface at a first rate and retracts from an extended position to a retracted position at a second rate in response to external force applied onto the pad. The rate control device includes a piston for applying a force on the pad; a biasing member that applies a force on the piston to extend the pad at the first rate; a fluid chamber associated with the piston; and a pressure management device for controlling a fluid pressure within the fluid chamber.
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