US PATENT SUBCLASS 91 / 492
.~.~ Plural banks

Current as of: June, 1999
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91 /   HD   MOTORS: EXPANSIBLE CHAMBER TYPE

472  DF  THREE OR MORE CYLINDERS ARRANGED IN PARALLEL RADIAL OR CONICAL RELATIONSHIP WITH ROTARY TRANSMISSION AXIS {10}
491  DF  .~ Radially disposed cylinders {6}
492.~.~ Plural banks

DEFINITION

Classification: 91/492

(under subclass 491) Apparatus comprising more than one group of plural radiating cylinders and in which either (1) the longitudinal cylinder axes of one group of plural cylinders are contained longitudinal axes of another group or (2) the rotation axis of one group is spaced from the rotation axis of another.