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:
Apr. 18, 2017
Filed:
Nov. 16, 2012
Smith International, Inc., Houston, TX (US);
Kjell Haugvaldstad, Trondheim, NO;
Youhe Zhang, Spring, TX (US);
SMITH INTERNATIONAL, INC., Houston, TX (US);
Abstract
A cutter assembly may include a sleeve having at least one passageway extending through the sleeve from a outer surface thereof into an inner surface thereof; at least one rotatable cutting element disposed in the sleeve, wherein the at least one rotatable cutting element has a circumferential groove formed in a side surface thereof, wherein when the inner rotatable cutting element is disposed in the sleeve, the circumferential groove is aligned with the passageway; and a retention element disposed in at least a portion of the passageway and the circumferential groove to retain the at least one rotatable cutting element in the sleeve, wherein the retention element has an axis that is parallel to a tangent of the rotatable cutting element side surface at least one point of contact with the rotatable cutting element.