US PATENT SUBCLASS 37 / 330
.~.~.~.~ Axis vertical with respect to surface of body of water


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}
324  DF  .~.~ Including driven digger adjacent suction inlet (e.g., cutterhead dredger) {3}
326  DF  .~.~.~ Rotary {4}
330.~.~.~.~ Axis vertical with respect to surface of body of water


DEFINITION

Classification: 37/330

Axis vertical with respect to surface of body of water:

(under subclass 326) Apparatus in which the axis about which the excavating element rotates is substantially perpendicular to the free water surface.

SEE OR SEARCH CLASS

175, Boring or Penetrating the Earth,

6, for boring a submerged formation with an underwater tool drive; subclass 107 for a rotary-type below ground tool drive.