US PATENT SUBCLASS 269 / 185
.~.~.~.~ Antipodal screw thread sectors

Current as of: June, 1999
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269 /   HD   WORK HOLDERS

86  DF  RELATIVELY MOVABLE JAWS {25}
165  DF  .~ Means for direct manual adjustment of jaw(s) {5}
172  DF  .~.~ With relative axial shift of screw-nut actuating means {4}
184  DF  .~.~.~ Interrupted thread type {3}
185.~.~.~.~ Antipodal screw thread sectors

DEFINITION

Classification: 269/185

(under subclass 184) Device including two separate thread portions facing away, oppositely, from each other on a cylindrical element.

(1) Note. Usually the mating nut member is under-cut in two similar portions to permit relative axial motion without thread interengagement.