B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
76/21
B23P 19/04 (2006.01) E21B 10/24 (2006.01) G01N 25/56 (2006.01)
Patent
CA 1179531
SEALED BEARING ROTARY ROCK BIT ASSEMBLY Abstract of the Invention A water detecting system for detecting water in the bearings and lubricant reservoir system of a sealed bearing rotary rock bit permits detection and removal of water to decrease premature bearing failure caused by the presence of water on the bearing surface.
411376
Dresser Industries Inc.
Macrae & Co.
LandOfFree
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