US PATENT SUBCLASS 248 / 597
.~.~.~ Spiral spring surrounds pivot axis

Current as of: June, 1999
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248 /   HD   SUPPORTS

560  DF  RESILIENT SUPPORT {16}
580  DF  .~ Including load sustaining bearing or guide {8}
596  DF  .~.~ Stationary horizontal pivot {2}
597.~.~.~ Spiral spring surrounds pivot axis

DEFINITION

Classification: 248/597

Spiral spring surrounds pivot axis:

(under subclass 596) Structure comprising a spiral spring which is disposed about the pivot axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

590, for a torsion spring which is coaxial with a pivot of a linkage or gear.