US PATENT SUBCLASS 269 / 48.3
.~.~.~ Having intermediate expanding means

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

47  DF  HOLDER INSERTED WITHIN WORK APERTURE {5}
48.1  DF  .~ Expandable mandrel {1}
48.2  DF  .~.~ Plural pin mandrel {1}
48.3.~.~.~ Having intermediate expanding means {1}
48.4  DF  .~.~.~.~> And coil spring

DEFINITION

Classification: 269/48.3

Having intermediate expanding means:

(under subclass 48.2) Device provided with a separate structure lying between and physically contacting the elements such that axial movement of the structure causes radial movement of the elements.