US PATENT SUBCLASS 91 / 495
.~.~.~ Cylinders or pistons pinned to common element

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}
494  DF  .~.~ Cylinders and pistons form or coact with respective common elements having limited relative rotary movement {1}
495.~.~.~ Cylinders or pistons pinned to common element

DEFINITION

Classification: 91/495

(under subclass 494) Apparatus in which either the plural cylinders or pistons are connected to their respective common element by means including a pivoted connection, and move about said pivoted connection incident to the limited relative rotation of said elements.