US PATENT SUBCLASS 37 / 333-- .~.~ Draghead dredger (e.g., dustpan dredger)

US PATENT SUBCLASS 37 / 333
.~.~ Draghead dredger (e.g., dustpan dredger)

Current as of: June, 1999
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37 /	HD	EXCAVATING

307	DF	BENEATH A BODY OF WATER (E.G., DREDGER) {11}
317	DF	.~ Suction {8}
333		.~.~ Draghead dredger (e.g., dustpan dredger)

DEFINITION

Classification: 37/333

Draghead dredger (e.g., dustpan dredger):

(under subclass 317) Apparatus wherein the mouth of the suction pipe comprises a plain pipe cut at an angle or a mouthpiece in the shape of a hook being adapted to be dragged along the bottom as the pipe is pulled along by the dredger travelling through the water. [figure] [caption]A - Drag head; B - Universal joint; C - Suction pipe; D - Couplings; E - Swell compensator; F - Hoist gantries; G - Discharge pipes; H - Hopper; J - Hopper doors; K - Pump; L - Hoist wires

(1) Note. The material is literally sucked into a nozzle, much the same way as in a vacuum cleaner, and then is transferred to the vertical means rising to the surface.