Surface skimming watercraft

Details Surface skimming watercraft Surface skimming watercraft

2011-03-29

2011-03-29

Olson, Lars A (Department: 3617)

Ships

Hull or hull adjunct employing fluid dynamic forces to...

Having hydrofoil

C114S280000

Reexamination Certificate

active

07913635

ABSTRACT:
A water craft including a hull having a main longitudinal axis defining a direction of travel of the craft, a plurality of discs mounted at respective opposed sides of the main longitudinal axis to and below the hull and in combination having sufficient buoyancy to support the hull above the water, each disc comprising an essentially circular convex skimming surface adapted to skim upon the water as the craft moves at low speed, wherein the discs are mounted to the hull such that the skimming surface of each disc faces downwardly with respect to the longitudinal central axis of the hull, and adapted for movement between a low speed orientation in which the discs present a portion of the circular convex skimming surface to the water surface and a high speed orientation in which the discs present a portion of the edge of the disc to the water.

REFERENCES:
patent: 1738410 (1929-12-01), Weir
patent: 2488310 (1949-11-01), Mayer
patent: 3237582 (1966-03-01), Sturgeon et al.
patent: 3996872 (1976-12-01), Pinchot, III
patent: 4061104 (1977-12-01), Pinchot, III
patent: 5638766 (1997-06-01), Pusterla

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