US PATENT SUBCLASS 60 / 366
.~.~.~ Toroidal impeller and turbine

Current as of: June, 1999
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60 /   HD   POWER PLANTS

325  DF  PRESSURE FLUID SOURCE AND MOTOR {47}
330  DF  .~ Coaxial impeller and turbine unit {11}
364  DF  .~.~ Impeller or turbine integral with unit housing {2}
366.~.~.~ Toroidal impeller and turbine {1}
367  DF  .~.~.~.~> Having core or ring member at interface

DEFINITION

Classification: 60/366

(under subclass 364) Apparatus wherein the impeller and turbine components of the fluid transmission unit are shaped so that the motive fluid will assume a toroidal flow path in its operation.