US PATENT SUBCLASS 405 / 236
.~.~.~.~ Subsurface dispensing of material for flow toward surface

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

229  DF  FOUNDATION {2}
231  DF  .~ Columnar structure (e.g., pier, pile) {7}
232  DF  .~.~ Process or apparatus for installing {5}
233  DF  .~.~.~ Casting in situ hardenable fluent material {7}
236.~.~.~.~ Subsurface dispensing of material for flow toward surface

DEFINITION

Classification: 405/236

Subsurface dispensing of material for flow toward surface:

(under subclass 233) Method or apparatus in which the flowable material in being placed causes the preceding material to flow upward from the point at which it is introduced into the member being formed.