F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
F16J 15/54 (2006.01) E21B 47/18 (2012.01) F16C 3/02 (2006.01) F16K 25/04 (2006.01) F16K 41/00 (2006.01)
Patent
CA 2548694
A shaft protection washer to protect a rotating shaft in a "measurement while drilling" (MWD) tool. Use of the shaft protection washer renders the rotating shaft less susceptible to erosion from the drilling fluid flowing between the rotating component and the stationary component.
Dopf Anthony R.
Le Trang
Logan Derek
Neff Timothy
Siemens Wendall
Extreme Engineering Ltd.
Gowling Lafleur Henderson Llp
Schlumberger Canada Limited
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