With means to scour or scrape (e.g., propeller means, digging teeth, plow):
(under subclass 307) Apparatus including an eroding device such as a propeller means or raking teeth which flushes or rub underwater obstructions such as sandbars or shoals by loosening the sand, mud, or silt at the bottom surface of a body of water. [figure] [caption]Fig. 1. A - Dredge vessel; B - Body of water; C - Sand bar; D - Propeller; E - Deflector [figure] [caption]Fig. 2. A - Dredge vessel; B - Digging elements; C - Digging teeth; D - Body of water; E - Sand bar
SEE OR SEARCH CLASS
114, Ships,
55, for a vessel raising means including provision for loosening of sand or mud about a submerged hull.
405, Hydraulic and Earth Engineering,
73, for subject matter relating to the removal of a sediment deposit by the concentration of a natural current.
