Multiple inserts of different geometry in a single row of a bit

Details Multiple inserts of different geometry in a single row of a bit Multiple inserts of different geometry in a single row of a bit

2008-05-27

2008-05-27

Neuder, William P (Department: 3672)

Boring or penetrating the earth

With signaling, indicating, testing or measuring

C175S374000, C175S378000

Reexamination Certificate

active

11692013

ABSTRACT:
A method for designing a roller cone drill bit having a plurality of cutting elements in a row. The method includes defining a pitch pattern for the plurality of cutting elements such that a first group of adjacent cutting elements are arranged in a first pitch and a second group of adjacent cutting elements are arranged in a second pitch in the row; evaluating the pitch pattern of the plurality of cutting elements in the row; and modifying at least one of the plurality of cutting elements, based on the evaluating the pitch pattern of the plurality of cutting elements.

REFERENCES:
patent: 7195078 (2007-03-01), Singh et al.
Office Action dated May 28, 2007 issued in corresponding Canadian Application No. 2,511,708, 3 pages.

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