US PATENT SUBCLASS 464 / 64
.~.~.~ Plural superposed springs on common centerline

Current as of: June, 1999
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464 /   HD   ROTARY SHAFTS, GUDGEONS, HOUSINGS, AND FLEXIBLE COUPLINGS FOR ROTARY SHAFTS

51  DF  TORQUE TRANSMITTED VIA FLEXIBLE ELEMENT {16}
61  DF  .~ Element is a spring coiled about centerline angularly related to or radially spaced from rotational axis {1}
62  DF  .~.~ Plural springs {4}
64.~.~.~ Plural superposed springs on common centerline

DEFINITION

Classification: 464/64

Plural superposed springs on common centerline:

(under subclass 62) Subject matter wherein both of the elements are coiled about a common centerline, and wherein one of the elements overlaps the other.