Rock bit with vectored inserts

Details Rock bit with vectored inserts Rock bit with vectored inserts

1991-05-22

1993-03-30

Britts, Ramon S.

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

E21B 1052

Patent

active

051975556

ABSTRACT:
An improved rotary cone cutter for rock drill bits having circumferential rows of wear resistant inserts. Inserts on the two outermost rows are oriented at an angle in relationship to the axis of the cone to either the leading side or trailing side of the cone. Such orientation will achieve either increased resistance to insert breakage and/or increased rate of penetration.

REFERENCES:
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patent: 3696876 (1972-10-01), Ott
patent: 4058177 (1977-11-01), Langford, Jr. et al.
patent: 4086973 (1978-05-01), Keller et al.
patent: 4108260 (1978-08-01), Bozarth
patent: 4334586 (1982-06-01), Schumacher
patent: 4343371 (1982-08-01), Baker, III et al.
patent: 4359335 (1982-11-01), Garner
patent: 4393948 (1983-07-01), Fernandez
patent: 4420050 (1983-12-01), Jones
patent: 4475606 (1984-10-01), Crow
patent: 4832139 (1989-05-01), Minikus et al.

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