US PATENT SUBCLASS 92 / 198
.~.~.~ Split annular type spring (200)

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

172  DF  PISTON {19}
193  DF  .~ With spring means for biasing side wall portion radially {4}
195  DF  .~.~ Open ended hollow skirt comprises biased portion {3}
198.~.~.~ Split annular type spring (200)

DEFINITION

Classification: 92/198

(under subclass 195) Apparatus in which the spring device comprises a discontinuous ring-like element made of resilient

material, a substantial portion of the periphery of said element being in force exerting engagement with the interior surface of the skirt.

SEE OR SEARCH THIS CLASS, SUBCLASS:

200, for a split annular type spring for biasing a side wall portion radially.