US PATENT SUBCLASS 405 / 74
.~ Settling of suspended matter in a specific location (e.g., at a scoured pier)


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405 /   HD   HYDRAULIC AND EARTH ENGINEERING

52  DF  FLUID CONTROL, TREATMENT, OR CONTAINMENT {7}
74.~ Settling of suspended matter in a specific location (e.g., at a scoured pier)


DEFINITION

Classification: 405/74

Settling of suspended matter in a specific location (e.g., at a scoured pier):

(under subclass 52) Fluid control for effecting precipitation

by gravity of a nonbuoyant material suspended in a body of water at a site in need of this material to, e.g., protect underwater devices such as pipes or cables, redirect flow, or fill in undesirable trenches as a result of scouring.

SEE OR SEARCH THIS CLASS, SUBCLASS:

15+, for bank, shore, or bed protecting structures, such as jetties, groins, and breakwaters, especially subclasses 21+ for wave or flow dissipating structures which may cause the settling of suspended matter as a result of their retarding or calming action on the water.

60+, for the collection or containment of buoyant material.

SEE OR SEARCH CLASS

37, Excavating,

307+, for dredgers which excavate material under a mass of liquid. 210, Liquid Purification or Separation,

170, and 747 of an in situ still or flowing liquid.