US PATENT SUBCLASS 405 / 112
.~.~.~.~ Vertical wall buttress

Current as of: June, 1999
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405 /   HD   HYDRAULIC AND EARTH ENGINEERING

52  DF  FLUID CONTROL, TREATMENT, OR CONTAINMENT {7}
80  DF  .~ Flow control {7}
107  DF  .~.~ Artificial water barrier (e.g., dam, levee, etc.) {7}
110  DF  .~.~.~ Hollow or buttressed {2}
112.~.~.~.~ Vertical wall buttress

DEFINITION

Classification: 405/112

Vertical wall buttress:

(under subclass 110) Method or apparatus wherein the barrier is provided with a plurality of spaced vertical partitionlike members extending perpendicularly outward on the downstream or backside of the barrier and which are vertically coextensive with the barrier.