US PATENT SUBCLASS 403 / 137
.~.~.~.~ Variably preloaded

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}
135  DF  .~.~.~ Including liner, shim, or discrete seat {5}
137.~.~.~.~ Variably preloaded

DEFINITION

Classification: 403/137

(under subclass 135) Structure comprising adjustable means for varying the compression or tension of a spring biasing the element.