US PATENT SUBCLASS 405 / 118
.~.~ Open channel

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

52  DF  FLUID CONTROL, TREATMENT, OR CONTAINMENT {7}
80  DF  .~ Flow control {7}
118.~.~ Open channel {1}
119  DF  .~.~.~> Flume {2}

DEFINITION

Classification: 405/118

Open channel:

(under subclass 80) Method or apparatus wherein the flow path is in the form of a trough.

SEE OR SEARCH THIS CLASS, SUBCLASS:

264+, for the treatment or coating of the earthen walls of the channel with an organic compound (e.g., asphalt) to impermeabilize the same.

268, for lining a channel with cementitious materials.

271, for the mere compacting of an earthen formation, e.g., a channel.