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:
Oct. 08, 2013
Filed:
Dec. 31, 2009
Dale Richard Wolfer, Salem, VA (US);
Dale Richard Wolfer, Salem, VA (US);
Atlas Copco Secoroc LLC, Grand Prairie, TX (US);
Abstract
A chuck assembly, an assembly for an earth-boring drill assembly, and a method of manufacturing a chuck assembly. In the assembly, a first portion of the chuck bore may have a minimum inner diameter greater than the chuck spline maximum inner diameter. A support ring recess may be defined in the bore axially between the chuck splines and the first end. A support ring may be positionable in the support ring recess, and the support ring, when positioned in the support ring recess, may have a support ring inner diameter less than the minimum inner diameter of the first portion of the bore. The drive pin may be positionable circumferentially between one of the chuck splines and an associated one of the bit splines and have an axial end surface at least partially engageable with the support ring to limit axial movement of the drive pin toward the first end.