US PATENT SUBCLASS 464 / 159
.~.~.~ Spherical or semispherical surfaces

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

106  DF  COUPLING ACCOMMODATES DRIVE BETWEEN MEMBERS HAVING MISALIGNED OR ANGULARLY RELATED AXES {9}
157  DF  .~ Torque transmitted via intermeshing teeth on drive and driven members {1}
158  DF  .~.~ Teeth on radially overlapping surfaces {1}
159.~.~.~ Spherical or semispherical surfaces

DEFINITION

Classification: 464/159

Spherical or semispherical surfaces:

(under subclass 158) Subject matter wherein at least one of said surfaces carrying said alternating ridges and valleys is spherical or partially spherical in shape.