Halo Maritime Defense Systems, Inc.

Tom Sherwin

Judson DeCew

Michael J Osienski

Eric H Rines

Sean Gribbin

Eric G Johnson

A compliant net support system for supporting a net of a marine barrier is provided. Embodiments include a floating marine barrier module comprising a flotation device; a supporting framework attached to the flotation device; a plurality of impact net support posts; and an impact net attached to each of the support posts and extending between the plurality of support posts along a longitudinal axis of the barrier module. At least one of the impact net support posts is a compliant net support post having a unidirectionally elastic spring element attached between a bottom of the support post and the supporting framework; and the spring element is movable in a direction substantially parallel to the longitudinal axis of the barrier module, and substantially inflexible in a direction substantially perpendicular to the longitudinal axis of the barrier module.

Compliant net support system for marine barriers

A marine barrier system is provided with two elongate buoyant members, a net support member between and above the two buoyant members, an elongate load bearing member spaced from and between the buoyant members, and a lower ballast member between the two buoyant members and below the buoyant members. Stanchions extend between the members to support them and maintain the spacing between them. An impact net is attached to the net support member and the load bearing member. When a moving vessel impacts the impact net, the net deflects to transfer a force of the impact to the net support member, the stanchions, the load bearing member and the buoyant members, which engage the water to transfer the impact force to the water and arrest the motion of the vessel. The ballast member provides a force to restore the barrier to an upright position when the barrier rotates from vertical.

Marine barrier systems

An open water marine barrier system is provided. Embodiments include a marine barrier with two elongate buoyant members, an elongate net support member between the two buoyant members and above the buoyant members, and an elongate lower ballast member between the two buoyant members and below the buoyant members. Stanchions extend between the members to support them and maintain the spacing between them. An impact net is attached to the net support member and a stanchion extending between the two buoyant members. When a moving vessel impacts the impact net, the net deflects to transfer a force of the impact to the net support member, the stanchions, and the buoyant members, which engage the water to transfer the impact force to the water and arrest the motion of the vessel. The ballast member provides a force to restore the barrier to an upright position when the barrier rotates from vertical.

Open water marine barrier systems

A marine barrier has a line of buoyant column modules, and an impact net attached to and extending between the column modules. First and second lines of buoyant flotation modules are respectively disposed parallel to and on opposing sides of the line of column modules, and are connected to the column modules by legs such that each of the flotation modules is retained between two adjacent ones of the center column modules. When the barrier is floating in a body of water and a moving vessel impacts the impact net, the impact net deflects to transfer a force of the impact to one or more of the column modules and flotation modules, which in turn engage the water to transfer the force of the impact to the water, to arrest the motion of the vessel.

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Newton, NH, United States of America

Tom Sherwin