Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Patent
1994-03-22
1995-06-06
Dang, Hoang C.
Boring or penetrating the earth
Bit or bit element
Rolling cutter bit or rolling cutter bit element
175426, E21B 1016, E21B 1052
Patent
active
054214238
ABSTRACT:
A cutter insert (34) is designed for mounting within a socket (48) bored in a roller cone cutter (10,12,14). The insert (34) includes a base (52) having a length (L2), a width (W2), and a depth (D), where the length (L2) differs substantially from the width (W2). The base (52) is sized to have an interference fit with the socket (48). A cutting tip (54) is integrally formed with the base (52) and protrudes outwardly from the socket (48) when the base (52) is mounted therein. The noncylindrical base (52) and socket (48) prohibit rotation of the insert (34) within the socket (48). Additionally, more inserts (34) with noncylindrical bases (52) can fit in a row (28-32, 36-46) than can cylindrical inserts having cylindrical bases and cutting tips of similar dimensions.
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Dang Hoang C.
Dresser Industries Inc.
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