Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure
Patent
1984-08-08
1986-10-21
Levy, Stuart S.
Boring or penetrating the earth
Cutter element laterally shiftable below ground
Cutter element shifted by fluid pressure
175269, E21B 926
Patent
active
046180095
ABSTRACT:
A narrow diameter reaming tool can ream a hole which is up to ten times the diameter of the tool. The cutting arms of the tool are of a type such that if there is an excessive load on an arm, the arm will fracture rather than bend.
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Carter Thurman B.
Mundorf Larry R.
Reynolds Carl D.
Hannon Thomas R.
Homco International Inc.
Levy Stuart S.
McGreal M. J.
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