US PATENT SUBCLASS 92 / 235
.~.~.~ Slit transverse to skirt axis

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

172  DF  PISTON {19}
208  DF  .~ Open-ended hollow skirt type (e.g., trunk type) {15}
234  DF  .~.~ Skirt includes slit {1}
235.~.~.~ Slit transverse to skirt axis {1}
236  DF  .~.~.~.~> With additional angularly related slit

DEFINITION

Classification: 92/235

(under subclass 234) Apparatus in which the elongated relatively narrow aperture extends circumferentially of the skirt-like member in a direction normal to the longitudinal axis of the piston.