Surfboard
OwnerMichael J. Yomazzo, Mark Yomazzoinventors
Life of this patent
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Abstract
A method for forming a surfboard is provided. The method comprises adding a polyethylene mixture into a mold having one or more ventilation holes located therein. The polyethylene mixture comprises a blend of a polyethylene material and a foaming agent. The polyethylene material is in a form comprising at least one of a powder form, a pellet form and mixtures thereof. In addition, the method comprises heating the polyethylene mixture in the mold while rotating the mold for a pre-determined period of time and at a predetermined temperature. Further, the method also comprises cooling the mold for a predetermined amount of time, and wherein either a main body of a surfboard or an entire surfboard is then formed.
Claims14
A method of forming a surfboard using a two-shot rotational molding process comprising:
- adding a first polyethylene material into a mold, said mold having one or more ventilation holes located therein;
- heating the first polyethylene material in the mold while rotating the mold for a pre-determined period of time and at a predetermined temperature to form a skin, said first polyethylene material being in a form comprising at least a powder form, wherein the first polyethylene material forms the skin as substantially solid without any substantial air voids;
- adding a polyethylene mixture into the mold, wherein the polyethylene mixture comprises a blend of a second polyethylene material and a foaming agent, said second polyethylene material being in a form comprising at least a pellet form and/or a micropellet form, wherein the second polyethylene material is the same as the first polyethylene material;
- and
- heating the polyethylene mixture inside the mold while rotating the mold for a pre-determined period of time and at a predetermined temperature to form a foam core;
- and
- cooling said mold for a predetermined amount of time wherein either a main body of a surfboard or an entire surfboard is then formed, and wherein the foam core transitions from the skin as a single unit with the skin and made of the same polyethylene material.
A method of forming a surfboard using a two-shot rotational molding process comprising:
- adding a first polyethylene material into a mold, said mold having one or more ventilation holes located therein;
- heating the first polyethylene material in the mold while rotating the mold for a pre-determined period of time and at a predetermined temperature to form a skin, said first polyethylene material being in a form comprising at least a powder form, wherein the first polyethylene material forms the skin as a solid outer section of the surfboard;
- adding a polyethylene mixture into the mold, wherein the polyethylene mixture comprises a blend of a second polyethylene material and a foaming agent, wherein the second polyethylene material is the same as the first polyethylene material, said second polyethylene material being in a form comprising at least a pellet form or a micropellet form;
- heating the polyethylene mixture inside the mold while rotating the mold for a pre-determined period of time and at a predetermined temperature to form a foam core;
- cooling said mold for a predetermined amount of time wherein a main body of a surfboard is formed, wherein the foam core transitions from the skin as a single unit with the skin and made of the same polyethylene material;
- and
- attaching one or more fine directly to the outer section of the main body to form an entire surfboard after said main body has been formed within said mold by said cooling of said mold for said predetermined amount of time.
Dependencies are inferred from the claim text.