US PATENT SUBCLASS 405 / 268
.~.~.~ Lining


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

Internet Version by PATENTEC © 1999      Terms of Use



405 /   HD   HYDRAULIC AND EARTH ENGINEERING

258  DF  EARTH TREATMENT OR CONTROL {5}
263  DF  .~ Chemical {2}
266  DF  .~.~ Cementitious (e.g., grouting) {3}
268.~.~.~ Lining


DEFINITION

Classification: 405/268

Lining:

(under subclass 266) Method or apparatus wherein the settable material is applied to an exposed surface of the earth formation to form a layer thereon.

(1) Note. Subject matter relating to the formation of a lining in a subterranean cavity is included in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

133, for subject matter relating to the formation of a shaft, including lining the same with cement.

150, for a cast in situ tunnel lining. 257, for a cast in situ hollow pier or caisson employed as a foundation.

SEE OR SEARCH CLASS

404, Road Structure, Process, or Apparatus, appropriate subclasses for a method or apparatus for forming or repairing a highway, pathway, or walkway structure.