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:
Sep. 21, 2010
Filed:
Jan. 03, 2008
Gregory W. Peterson, Arlington, TX (US);
Anthony D. Podnieks, Plano, TX (US);
Tim Chu, Novi, MI (US);
Elisabeth Smith, Kulpsville, PA (US);
Janice David, Plymouth, MI (US);
Gregory W. Peterson, Arlington, TX (US);
Anthony D. Podnieks, Plano, TX (US);
Tim Chu, Novi, MI (US);
Elisabeth Smith, Kulpsville, PA (US);
Janice David, Plymouth, MI (US);
Atlas Copco Secoroc LLC, Grand Prairie, TX (US);
SKF USA Inc., Norristown, PA (US);
Abstract
An earth bit includes a cone rotatably mounted to a shaft with a hub unit and thrust roller bearings. The hub unit is moveable between mounted and unmounted positions on the shaft, as a single unit, in a repeatable manner. The hub unit includes a pair of roller bearings positioned between inner and outer races. The outer race includes a recess extending around its outer periphery. A sealing structure is slidingly engaged with the recess to provide a seal between the cone and shaft.