US PATENT SUBCLASS 417 / 353
.~.~ Armature within pumping member

Current as of: June, 1999
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417 /   HD   PUMPS

321  DF  MOTOR DRIVEN {32}
352  DF  .~ Motor within rotary pumping member {1}
353.~.~ Armature within pumping member {1}
354  DF  .~.~.~> Stator within armature

DEFINITION

Classification: 417/353

(under subclass 352) Apparatus in which the portion of the motor situated within the pumping member is the rotor of an electric motor.

(1) Note. Included under this definition are those devices in which the pumping member has an outer working face or pumping portion and is made of some specific material (e.g., magnetizable) so as to also function as the motor working

member.