US PATENT SUBCLASS 299 / 106
.~ Rolling or rotatable type bit mount

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}
106.~ Rolling or rotatable type bit mount {1}
107  DF  .~.~> Having a spring biased retainer

DEFINITION

Classification: 299/106

Rolling or rotatable-type bit mount:

(under subclass 79.1) Cutter tooth or tooth head comprising a means to connect the cutting element to the supporting means in order to enable turning.

(1) Note. A connection between a cutter head and drive shaft or between plural sections of drive shaft is not included under this definition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

101, for plural cutting edges on tooth, pick, or bit.

SEE OR SEARCH CLASS

175, Boring or Penetrating the Earth,

412+, for an earth boring bit having plural separable cutter elements.

279, Chucks or Sockets, 9.1+, for a socket type holder.