US PATENT SUBCLASS 299 / 81.1
.~ Cleansing fluid passage

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}
81.1.~ Cleansing fluid passage {2}
81.2  DF  .~.~> Fluid feed distributor or controller (e.g., manifold)
81.3  DF  .~.~> Nozzle or seal details

DEFINITION

Classification: 299/81.1

Cleansing fluid passage:

(under subclass 79.1) Cutter tooth or tooth head in which the elements' supporting means is provided with a conduit for a fluid to make wet the hard material contacting portion thereof or the adjacent area of the work.

SEE OR SEARCH CLASS

175, Boring or Penetrating the Earth,

339+, for a rolling cutter bit or bit element having drilling fluid conduit details, subclass 393 for a bit or bit element having a fluid conduit lining or element, and subclasses 414+ for an impact bit having an internal fluid passage.