US PATENT SUBCLASS 269 / 48.1
.~ Expandable mandrel

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

47  DF  HOLDER INSERTED WITHIN WORK APERTURE {5}
48.1.~ Expandable mandrel {1}
48.2  DF  .~.~> Plural pin mandrel {1}

DEFINITION

Classification: 269/48.1

(under subclass 47) Device whose holder portion includes means to allow its size to be increased by an amount sufficient to permit engagement between the holder and the work at such opening.

SEE OR SEARCH CLASS

279, Chucks or Sockets,

2.01+, for an expanding chuck or socket.