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:
Nov. 24, 2009
Filed:
Apr. 02, 2007
Karlos B. Cepeda, Fort Worth, TX (US);
Robert J. Buske, The Woodlands, TX (US);
James L. Overstreet, Tomball, TX (US);
Rolf C. Pessier, The Woodlands, TX (US);
Karlos B. Cepeda, Fort Worth, TX (US);
Robert J. Buske, The Woodlands, TX (US);
James L. Overstreet, Tomball, TX (US);
Rolf C. Pessier, The Woodlands, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
An earth-boring bit has a high density row on one of its cones. Each cone has a nose area and a gage area with a heel row of teeth at the gage area. One of the cones has a farther intermediate row of teeth and another one of the cones has a closer intermediate row of teeth. The remaining cone has a high density row of teeth, which is located closer to the axis of rotation of the bit than the farther intermediate row and farther from the axis of rotation of the bit than the closer intermediate row. The high density row has a smaller pitch between crests of the teeth than the closer and farther intermediate rows. The smaller pitch provides more teeth in the high density row than in the closer intermediate row and the farther intermediate row.