US PATENT SUBCLASS 242 / 571.7
.~.~.~ Wedging roller or ball

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}
571.6  DF  .~.~ Rotation responsive {1}
571.7.~.~.~ Wedging roller or ball

DEFINITION

Classification: 242/571.7

Wedging roller or ball:

(under subclass 571.6) Subject matter wherein the shiftable means includes a member pivotally or rotatably shiftable in response to rotation of the spindle to create a binding action between the outer periphery of the spindle and the inner periphery of a spool or coil carried by the support structure.

SEE OR SEARCH CLASS

492, Roll or Roller,

21, for a wedge-type roll expander.