US PATENT SUBCLASS 73 / 862.641
.~.~.~.~ Helical or spiral

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

862  DF  DYNAMOMETERS {5}
862.381  DF  .~ Responsive to force {13}
862.621  DF  .~.~ By measuring elastic deformation {4}
862.636  DF  .~.~.~ Specific type of elastic member {3}
862.641.~.~.~.~ Helical or spiral

DEFINITION

Classification: 73/862.641

Helical or spiral:

(under subclass 862.636) Subject matter wherein the elastic member is of a helical or spiral shape.

SEE OR SEARCH THIS CLASS, SUBCLASS:

862.629, for a specific type of elastic member combined with a resistance strain gage to measure applied force.