US PATENT SUBCLASS 114 / 271
HULL OR HULL ADJUNCT EMPLOYING FLUID DYNAMIC FORCES TO DERIVE A LIFT OR ALTER TRIM, E.G., PLANING HULLS

Current as of: June, 1999
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114 /   HD   SHIPS

271HULL OR HULL ADJUNCT EMPLOYING FLUID DYNAMIC FORCES TO DERIVE A LIFT OR ALTER TRIM, E.G., PLANING HULLS {7}
272  DF  .~> Having airfoil {1}
274  DF  .~> Having hydrofoil {4}
283  DF  .~> Having laterally disposed skids or pontoons
284  DF  .~> Movably mounted hull portion or hull adjunct {1}
288  DF  .~> Having fluid channeling or entrapping configuration {2}
291  DF  .~> Stepped hull
292  DF  .~> Pontoon structure

DEFINITION

Classification: 114/271

(under the class definition) Device wherein a hull attachment is provided or the hull form of the vessel is such that as the vessel moves through or across the surface of a body of water, a force is generated tending either to raise the vessel out of the water or to change the fore and aft drafts of the vessel relative to each other.

SEE OR SEARCH THIS CLASS, SUBCLASS:

16+, for analogous devices on submarines.

20+, for analogous devices on torpedoes.

SEE OR SEARCH CLASS

441, Buoys, Rafts, and Aquatic Devices,

65+, for aquaplanes and analogous skimming devices adapted to be attached to a person or animal.