Locking apparatus for earth boring cutter or stabilizer

Details Locking apparatus for earth boring cutter or stabilizer Locking apparatus for earth boring cutter or stabilizer

E - Fixed Constructions

21

B

255/75

E21B 10/00 (2006.01) E21B 7/28 (2006.01) E21B 10/10 (2006.01)

Patent

CA 1050005

LOCKING APPARATUS FOR EARTH BORING CUTTER OR STABILIZER Abstract of the Disclosure The rolling cutter or stabilizer member of a rotary drill string unit is effectiyely locked in place by a locking device. The device allows the cutter or stabilizer member to carry radial, tangential and axial loads. A support member includes a surface positioned perpendicular to the resultant of the expected radial load and tangential load. A support shaft includes a slabbed-off surface positioned perpendicular to the resultant of said resultant loads and said axial load. -1a-

269614

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