A High-Density Polyethylene (HDPE) marine boom includes an elongated generally cylindrical shell including inner and outer layers formed from HDPE with the same formulation. The inner layer includes at least 2% carbon black by mass and the outer layer does not include carbon black. The outer layer includes a colorant with ultraviolet stabilizers and the inner layer does not include the colorant. The inner layer is thicker than the outer layer and they have been coextruded to form a unitary body. First and second caps, each including a radially extending circumferential annular flange, formed from the same material as the outer layer are fusion welded to the shell across the full thickness and around a full circumference of first ends and second ends of the shell and form a watertight seal. A floatation billet is in the shell. A lug plate for the HDPE marine boom is also disclosed.

A buoy is provided. The buoy includes a buoyant core component having a plurality of cavities positioned therein. The buoy additionally includes at least two detachable flotation components surrounding and supporting the core component, and a pair of tic bar assemblies. The pair of tie bar assemblies are mounted to the plurality of cavities of the core component.

A buoy is provided. The buoy includes a buoyant core component having a plurality of cavities positioned therein. The buoy additionally includes at least two detachable flotation components surrounding and supporting the core component, and a pair of tic bar assemblies. The pair of tie bar assemblies are mounted to the plurality of cavities of the core component.

A water floatation device for water remediation of water body comprising an anchor connected to a buoy. The buoy includes a water remediation facilitator that is adapted to be connected to a solar panel, an antenna and a propeller (109) with a steering oar, plurality of water quality sensing sensors and a power adaptor. A cell is formed with at least two electrodes with intervening spaces between them and connected to the insulated proximal and distal end caps with perforations. The cell is electrically connected to the buoy. The water floatation device performs electrocoagulation and electro-oxidation of water and discharges the treated water back into the water body.

A water floatation device for water remediation of water body comprising an anchor connected to a buoy. The buoy includes a water remediation facilitator that is adapted to be connected to a solar panel, an antenna and a propeller (109) with a steering oar, plurality of water quality sensing sensors and a power adaptor. A cell is formed with at least two electrodes with intervening spaces between them and connected to the insulated proximal and distal end caps with perforations. The cell is electrically connected to the buoy. The water floatation device performs electrocoagulation and electro-oxidation of water and discharges the treated water back into the water body.

A navigational buoy that includes a finned, hollow, transparent, spherical shell that floats on water. A multi-wheeled motor-unit sits inside the shell, and ballast weights attached to the motor unit cause it to rest on the bottom of the shell. A biasing structure attached to the motor unit, lights, and other aspects are included in some embodiments.

An LED illuminated buoy system is disclosed, designed to enhance maritime safety and visibility. The system includes a weighted base with a conical shape for stability and a semi-translucent flotation part that extends above the waterline. The buoy houses an LED light source within the base, programmable for various colors and patterns. A sealing connection between the base and flotation part prevents water ingress. The system also features a communication interface for data transmission and remote operation. The buoy can be anchored securely and is adaptable for use as a lamp on land. The system's design allows for easy assembly and maintenance, with environmental resistance features integrated for durability. The buoy serves as a navigational aid, safety marker, and versatile lighting solution in aquatic environments.

An inventive channel marker includes a least a buoyant member, a display device, a photovoltaic cell and power storage assembly, and a display device connected to a wireless communication system. The inventive channel marker may also be inflatable. Accordingly, the inventive channel marker facilitates its deployment as a temporary channel marker that can be easily stowed when not in use, and with a display that can be configured on the fly to present any desired information.

A High-Density Polyethylene (HDPE) marine boom includes an elongated generally cylindrical shell including inner and outer layers formed from HDPE with the same formulation. The inner layer includes at least 2% carbon black by mass and the outer layer does not include carbon black. The outer layer includes a colorant with ultraviolet stabilizers and the inner layer does not include the colorant. The inner layer is thicker than the outer layer and they have been coextruded to form a unitary body. First and second caps, each including a radially extending circumferential annular flange, formed from the same material as the outer layer are fusion welded to the shell across the full thickness and around a full circumference of first ends and second ends of the shell and form a watertight seal. A floatation billet is in the shell. A lug plate for the HDPE marine boom is also disclosed.

A High-Density Polyethylene (HDPE) marine boom includes an elongated generally cylindrical shell including inner and outer layers formed from HDPE with the same formulation. The inner layer includes at least 2% carbon black by mass and the outer layer does not include carbon black. The outer layer includes a colorant with ultraviolet stabilizers and the inner layer does not include the colorant. The inner layer is thicker than the outer layer and they have been coextruded to form a unitary body. First and second caps, each including a radially extending circumferential annular flange, formed from the same material as the outer layer are fusion welded to the shell across the full thickness and around a full circumference of first ends and second ends of the shell and form a watertight seal. A floatation billet is in the shell. A lug plate for the HDPE marine boom is also disclosed.