(under subclass 307) Apparatus especially adapted for sea floor operation wherein the excavating is controlled in whole or part from a submerged, hollow, usually cylindrical receptacle of watertight construction made of a buoyancy material, manned or unmanned, which is either adapted to be propelled through the water or travel along or rest on the sea floor. [figure] [caption]A - Underwater body; B - Cutterhead; C - Cutter ladder; D - Suction tube; E - Cutter motor; F - Shaft connecting underwater body to atmosphere
SEE OR SEARCH THIS CLASS, SUBCLASS:
195, for a dredging process.
SEE OR SEARCH CLASS
114, Ships,
55, for means to remove sand or mud from a submerged hull; subclasses 312+ for an underwater habitat which is not permanently secured to the marine floor or an independently propelled submersible vessel.
405, Hydraulic and Earth Engineering,
8+, for a pressurized caisson; subclasses 154+ for subject matter including pipe or cable laying, retrieving, or underwater manipulation; subclasses 185+ for submersible means which is remotely controlled by personnel at the water surface or is operated or occupied by a diver for underwater manipulation; subclasses 205+ for a device having ballasting means to be sunk or positioned at site.
