Dual stability seal skirt system for air cushion vehicle

Details Dual stability seal skirt system for air cushion vehicle Dual stability seal skirt system for air cushion vehicle

2007-11-20

2007-11-20

Olson, Lars A. (Department: 3617)

Ships

Building

Antifriction surfaces

C180S127000

Reexamination Certificate

active

11469440

ABSTRACT:
A marine air cushion vehicle provides a hull having a hull periphery, an inflatable bag connected to the hull at the hull periphery, an inflatable skirt connected to the bag, and a pair of inflatable lateral stability seals, each extending generally perpendicular to the hull central longitudinal axis and to port and starboard positions. A plurality of inflatable open cones are attached to the inflatable bag, the open cones being positioned in between the lateral stability seals in a fore to aft direction. The skirt includes in part the inflatable open cones. In another embodiment, the open cones can be alternatively placed in between the lateral stability seals or in front of the lateral stability seals, in between a lateral stability seal and the hull bow. In another alternative embodiment, inflatable open cones can be positioned in between a lateral stability seal and the hull stern. In another embodiment, the inflatable skirt includes some inflatable open cones, and wherein the air cushion is not subdivided by any longitudinally positioned seals.

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