US PATENT SUBCLASS 73 / 861.91
.~.~.~ With structure to reduce friction or wear


Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

861  DF  VOLUME OR RATE OF FLOW {23}
861.79  DF  .~ Using turbine {5}
861.89  DF  .~.~ Axial supply and delivery {4}
861.91.~.~.~ With structure to reduce friction or wear


DEFINITION

Classification: 73/861.91

With structure to reduce friction or wear:

(under subclass 861.89) Subject matter wherein structure, other than the bearings themselves, is provided to reduce friction or wear of the turbine bearings.

(1) Note. Reduction of friction or wear may be attained by reducing axial thrust or lubricating the bearings.