The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 2010
Filed:
Apr. 30, 2007
James Edmond Beylotte, Crosby, TX (US);
Lance D. Underwood, Cypress, TX (US);
James Edmond Beylotte, Crosby, TX (US);
Lance D. Underwood, Cypress, TX (US);
Smith International, Inc., Houston, TX (US);
Abstract
A locking clutch to selectively transmit torque from a stator of a downhole tool to a rotor of the downhole tool includes at least one locking pawl disposed upon the rotor. The at least one locking pawl comprises a load path, a pivot axis, and a mass center, and is biased into an engaged position by a biasing mechanism. The at least one locking pawl transmits force from the stator to the rotor along the load path when in the engaged position, and centrifugal force urges the at least one locking pawl into a disengaged position when the rotor is rotated above a disengagement speed.