US PATENT SUBCLASS 212 / 308
.~ Including counterweight or means to compensate for list, trim or skew of vessel

Current as of: June, 1999
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212 /   HD   TRAVERSING HOISTS

307  DF  SHIP MOUNTED OR FLOATING (E.G., A CRANE FIXED TO A PLATFORM ADAPTED TO FLOAT) {2}
308.~ Including counterweight or means to compensate for list, trim or skew of vessel

DEFINITION

Classification: 212/308

Including counterweight or means to compensate for list, trim or skew of vessel:

(under subclass 307) Subject matter including either (a) a mass specifically employed to offset the weight of the load or (b) means to neutralize the effect of a tilting attitude about the longitudinal, lateral, or vertical axis of the vessel or platform.

SEE OR SEARCH THIS CLASS, SUBCLASS:

272+, for means to prevent or dampen oscillations of the load as it moves.

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254, Implements or Apparatus for Applying Pushing or Pulling Force,

900, for winches with wave compensation damping.