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

2007-03-27

2007-03-27

Neuder, William (Department: 3672)

Boring or penetrating the earth

With signaling, indicating, testing or measuring

C175S374000, C175S378000

Reexamination Certificate

active

10886474

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.

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GB Combined Search & Examination Report; Dated Sep. 6, 2005; 7 pages.
Official Action issued on corresponding Canadian Patent Application No. 2,511,708; Dated Apr. 28, 2006; (4 pages).
Examination Report issued on corresponding UK Patent Application No. 0513765.8; Dated Aug. 2, 2006; 3 pages.

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