US PATENT SUBCLASS 37 / 458
.~.~.~.~ Having resilient metallic element

Current as of: June, 1999
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37 /   HD   EXCAVATING

446  DF  DIGGING EDGE {7}
452  DF  .~ Tooth or adaptor {3}
455  DF  .~.~ Mounting or retaining means {1}
456  DF  .~.~.~ Including pin or key {2}
458.~.~.~.~ Having resilient metallic element {1}
459  DF  .~.~.~.~.~> Wire or rod formed

DEFINITION

Classification: 37/458

Having resilient metallic element:

(under subclass 456) Apparatus also combined with a hard springlike material having elastic properties adapted to provide a frictional retention force. [figure] [caption]A - Bucket plate; B - Adaptor; C - Tooth; D - Opening for pin; E - Tooth digging edge; F - Opening for pin; G - Metallic spring; H - Pin or key

SEE OR SEARCH CLASS

172, Earth Working,

705, for a spring biased or formed tool or tool part.

411, Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener,

516, for a fastener securing element having a metallic springlike element.