US PATENT SUBCLASS 418 / 61.2
.~.~.~ Rotor has one more lobe than cylinder (i.e., Wankel type)

Current as of: June, 1999
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418 /   HD   ROTARY EXPANSIBLE CHAMBER DEVICES

54  DF  WORKING MEMBER HAS PLANETARY OR PLANETATING MOVEMENT {6}
58  DF  .~ Plural working members or chambers {3}
61.1  DF  .~.~ Circumferentially spaced working chambers {2}
61.2.~.~.~ Rotor has one more lobe than cylinder (i.e., Wankel type)

DEFINITION

Classification: 418/61.2

Rotor has one more than cylinder (i.e., wankel type):

(under subclass 61.1) Apparatus wherein the working member has one lobe more than the number of working chambers.