US PATENT SUBCLASS 403 / 144
.~.~.~ Spring-biased

Current as of: June, 1999
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403 /   HD   JOINTS AND CONNECTIONS

52  DF  ARTICULATED MEMBERS {13}
119  DF  .~ Pivoted {7}
122  DF  .~.~ Universal ball and socket {12}
144.~.~.~ Spring-biased

DEFINITION

Classification: 403/144

(under subclass 122) Structure wherein a resilient means urges the ball and socket members into engagement.

SEE OR SEARCH THIS CLASS, SUBCLASS:

135+, for a directly biased packing or seat.