US PATENT SUBCLASS 242 / 572
.~.~ Longitudinally shiftable operator

Current as of: June, 1999
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242 /   HD   WINDING, TENSIONING, OR GUIDING

570  DF  COIL HOLDER OR SUPPORT (E.G., SPINDLE, DISPENSER, OR SPOOL) {6}
571  DF  .~ Radially expansible or contractile {8}
572.~.~ Longitudinally shiftable operator {2}
573  DF  .~.~.~> Cam and follower {3}
574  DF  .~.~.~> Shiftable linkage {4}

DEFINITION

Classification: 242/572

Longitudinally shiftable operator:

(under subclass 571) Subject matter wherein the coil supporting structure includes a spindle and the shiftable means includes an actuator movable in an axial direction (i.e., on or substantially parallel to a center axis of the coil) to vary a circumferential dimension of the spindle.

SEE OR SEARCH CLASS

492, Roll or Roller,

21, for a wedge-type roll expander.