Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Patent
1994-01-28
1995-10-10
Dang, Hoang C.
Boring or penetrating the earth
Bit or bit element
Rolling cutter bit or rolling cutter bit element
175377, 175378, E21B 1016
Patent
active
054563283
ABSTRACT:
A drill bit includes a rolling cutter having a plurality of closed-end circumferential rows of teeth protruding from the body of the cutter. At least one of the rows of teeth lies along a path defined either by multiple helical segments or a canted planar periphery.
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Security Division, Dresser Industries, Inc., "Serpentine* Design No. 6 S8-Sb Cutter For Security Custom Hole Openers", Field Technical Bulletin, Jan. 1993.
Security Division, Dresser Industries, Inc., "Drilling Tools, Standard Hole Openers" #3364.
Security Division, Dresser Industries, Inc., "Drilling Tools, Custom Hole Openers" #3365.
Dang Hoang C.
Dresser Industries Inc.
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