Boring or penetrating the earth – Bit or bit element – Impact or percussion type
Patent
1991-03-06
1993-02-09
Britts, Ramon S.
Boring or penetrating the earth
Bit or bit element
Impact or percussion type
408211, E21B 1044
Patent
active
051846896
ABSTRACT:
An insert for use in a rotary drill bit wherein first and second top surfaces are opposite a bottom surface, first and second leading faces are opposite first and second trailing faces, and first and second end faces represent outside edges of first and second portions of the insert wherein in one embodiment each of the top surfaces meets its respective leading face to form a cutting edge which forms an oblique angle wherein the cutting edge on the first portion is linearly aligned with the cutting edge on the second portion.
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Montgomery, Jr. Robert H.
Sheirer Daniel C.
Woods Gerald L.
Britts Ramon S.
Kennametal Inc.
Meenan Larry R.
Prizzi John J.
Schoeppel Roger J.
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