US PATENT SUBCLASS 451 / 504
.~ Including expansible external surface

Current as of: June, 1999
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451 /   HD   ABRADING

490  DF  TOOL SUPPORT FOR FLEXIBLE-MEMBER TOOL {13}
504.~ Including expansible external surface {3}
505  DF  .~.~> Hydraulically actuated
506  DF  .~.~> Centrifugally actuated
507  DF  .~.~> Actuated by compression of support

DEFINITION

Classification: 451/504

Including expansible external surface:

(under subclass 490) Tool support wherein the outer effective tool engaging area of the support is increased for frictionally securing the tool to its support.

SEE OR SEARCH THIS CLASS, SUBCLASS:

463+, for a tool carrier wherein the effective tool engaging surface is increased by the outward or inward movement of the tool.