US 12,459,606 B2
High-density polyethylene marine boom
Paul S. Meeks, East Canton, OH (US); Marc Schneider, East Canton, OH (US); and Jon Garver, East Canton, OH (US)
Assigned to WORTHINGTON PRODUCTS INCORPORATED, East Canton, OH (US)
Appl. No. 18/729,366
Filed by WORTHINGTON PRODUCTS INCORPORATED, East Canton, OH (US)
PCT Filed Feb. 23, 2022, PCT No. PCT/US2022/017418
§ 371(c)(1), (2) Date Jul. 16, 2024,
PCT Pub. No. WO2023/146557, PCT Pub. Date Aug. 3, 2023.
Claims priority of provisional application 63/303,232, filed on Jan. 26, 2022.
Claims priority of provisional application 63/303,217, filed on Jan. 26, 2022.
Claims priority of provisional application 63/303,259, filed on Jan. 26, 2022.
Claims priority of provisional application 63/303,224, filed on Jan. 26, 2022.
Claims priority of provisional application 63/303,220, filed on Jan. 26, 2022.
Prior Publication US 2025/0002119 A1, Jan. 2, 2025
Int. Cl. B63B 22/04 (2006.01); B63B 5/24 (2006.01); B63B 22/16 (2006.01); E02B 15/08 (2006.01)
CPC B63B 22/04 (2013.01) [B63B 5/24 (2013.01); B63B 22/16 (2013.01); E02B 15/085 (2013.01); B63B 2207/00 (2013.01); B63B 2231/40 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A High-Density Polyethylene (HDPE) marine boom comprises:
an elongated generally cylindrical shell including an inner layer and an outer layer, where the inner layer and outer layer are formed from HDPE with the same formulation, with the inner layer further including at least 2% carbon black by mass and the outer layer does not include carbon black and the outer layer further including a colorant with ultraviolet stabilizers and the inner layer does not include the colorant, the inner layer being thicker than the outer layer, where the inner layer and outer layer have been coextruded to form a unitary body, the shell defining a cavity, the shell having first and second ends;
first and second caps formed from the same material as the outer layer disposed about the first and second ends respectively, each cap including a generally cylindrical main body having an outer diameter and an inner diameter equal to an outer diameter and an inner diameter of the shell, and an end wall extending across one end of the main body, where the other end of the main body of each of the first and second caps are axially aligned with the first and second ends of shell respectively and are fusion welded together across the full thickness and around a full circumference of the first ends and the second ends and forming a watertight seal; and
a floatation billet disposed within the cavity in the shell.