US PATENT SUBCLASS 475 / 151
.~ Plural power paths


Current as of: June, 1999
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475 /   HD   PLANETARY GEAR TRANSMISSION SYSTEMS OR COMPONENTS

149  DF  ELECTRIC OR MAGNETIC DRIVE OR CONTROL {4}
151.~ Plural power paths {1}
152  DF  .~.~> With nonplanetary drive to electric or magnetic path


DEFINITION

Classification: 475/151

Plural power paths:

(under subclass 149) Subject matter wherein two power paths extend to or from a planetary transmission, between an input member* and an output member*, and one path includes an electric or magnetic drive.

(1) Note. A clutch* that locks up the planetary transmission for unitary drive* is not considered a separate power path. See other subclasses under subclass 149.

SEE OR SEARCH THIS CLASS, SUBCLASS:

21, for this type drive used in a steering by driving combination.

47+, and 72+, for similar gearing arrangements but using a fluid drive as the variable transmission.

SEE OR SEARCH CLASS

318, Electricity, Motive Power Systems, 8, for similar systems where the generated electricity is not wholly utilized in the motor-generator systems.