US PATENT SUBCLASS 175 / 211
.~.~ Axially supported by tool shaft


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



175 /   HD   BORING OR PENETRATING THE EARTH

207  DF  WITH ABOVE-GROUND MEANS FOR HANDLING DRILLING FLUID OR CUTTING {9}
209  DF  .~ Fluid or cuttings directing or receiving means engaging bore entrance {2}
211.~.~ Axially supported by tool shaft


DEFINITION

Classification: 175/211

(under subclass 209) Apparatus in which the collecting or diverting means is mounted on a tool shaft and means are provided to restrain the same against axial movement in one direction along said tool shaft.