US PATENT SUBCLASS 92 / 188
.~.~ Means retained by annulus positioned about piston periphery

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

172  DF  PISTON {19}
187  DF  .~ With separable means for pivotally mounting connecting rod to piston {3}
188.~.~ Means retained by annulus positioned about piston periphery

DEFINITION

Classification: 92/188

(under subclass 187) Apparatus in which the means for securing the member to the piston comprises a ring-shaped element positioned about the outer periphery of the piston and forms a side wall portion thereof.