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. 13, 2009
Filed:
Aug. 15, 2005
Floyd C. Felderhoff, Montgomery, TX (US);
Brian A. Baker, Shenandoah, TX (US);
Rudolf C. Pessier, The Woodlands, TX (US);
Jimmy W. Eason, The Woodlands, TX (US);
Floyd C. Felderhoff, Montgomery, TX (US);
Brian A. Baker, Shenandoah, TX (US);
Rudolf C. Pessier, The Woodlands, TX (US);
Jimmy W. Eason, The Woodlands, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
An earth boring bit has an outer row of inserts located within extra deep holes. Each of the holes has a cylindrical sidewall with a depth greater than the length of the barrel of the insert mounted within. The difference in depth is at least equal to a distorted entry zone in the hole. A portion of the sidewall that includes the entry zone surrounds the cutting end, reducing the projection of the cutting end from the land.