US PATENT SUBCLASS 418 / 54
WORKING MEMBER HAS PLANETARY OR PLANETATING MOVEMENT

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

54WORKING MEMBER HAS PLANETARY OR PLANETATING MOVEMENT {6}
55.1  DF  .~> Helical working member, e.g., scroll {5}
56  DF  .~> Non-metallic working member, cylinder or partition
57  DF  .~> Adjustable or resiliently biased working member
58  DF  .~> Plural working members or chambers {3}
62  DF  .~> Partition pivotally connected to working member and cylinder
63  DF  .~> With relatively movable partition member {4}

DEFINITION

Classification: 418/54

(under the class definition) Apparatus in which the working member either (1) rotates about its axis while the axis moves in an orbit or (2) has circular translatory or oscillatory movement without rotation or substantial rotation about its axis while the axis moves in an orbit.