US PATENT SUBCLASS 299 / 100
.~ Percussive tooth or bit

Current as of: June, 1999
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299 /   HD   MINING OR IN SITU DISINTEGRATION OF HARD MATERIAL

79.1  DF  CUTTER TOOTH OR TOOTH HEAD {17}
100.~ Percussive tooth or bit

DEFINITION

Classification: 299/100

Percussive tooth or bit::

(under subclass 79.1) Cutter tooth or tooth head in which the element is operated by cyclic impact upon or against the hard material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

26, for an ice working device having or comprising a reciprocating cutter.

69+, for a mining machine having an impact type cutter.

SEE OR SEARCH CLASS

175, Boring or Penetrating the Earth,

414+, for an impact type earth boring bit or bit element.