US PATENT SUBCLASS 464 / 19
.~ Relative angular displacement of axes of shafts

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

18  DF  FLEXIBLE COUPLING BETWEEN FLUID-CONDUCTING ROTARY SHAFTS (E.G., COUPLING BETWEEN SECTIONS OF DRILL STRING, ETC.) {2}
19.~ Relative angular displacement of axes of shafts

DEFINITION

Classification: 464/19

Relative angular displacement of axes of shafts:

(under subclass 18) Subject matter wherein said coupling facilitates changing the angle defined by the longitudinal axes of the shafts with respect to each other.