Boat hull shell having an integral support structure
OwnerGary D. MacDougallinventor
Life of this patent
Estimating the term…
Abstract
A method of forming a shell structure using rotary molding techniques where two halves of the shell are molded together and then joined when the two halves of the shell are in a molten state. The method is particularly useful for molding one-piece boat hulls.
Claims20
A plastic boat hull shell structure comprising opposing inner and outer shells which are integrally joined around peripheral portions thereof and which are also integrally joined at adjacent regions within said periphery by interior stiffening means including at least one longitudinal stiffening member integrally joined to and extending between said inner shell and a region of continuity of the outer surface of said outer shell, said stiffening means being of a predetermined first thickness along a first portion which extends between said inner and outer shells and of a predetermined second thickness along a second portion which is integrally joined to said outer shell.
A plastic boat hull structure 6, wherein;
- at least one of the stiffening member lower faces are joined to said outer shell coincident with a strake region.
An integrally formed reinforced plastic boat hull structure, comprising:
- peripherally joined inner and outer shells;
- said outer shell including interior and exterior surfaces;
- a plurality of spaced longitudinally extending stiffening members integrally joined to and extending between said inner shell and the interior surface of said outer shell to form an integral unitary hull;
- and
- said stiffening members including spaced intermediate webs extending between said inner shell and the interior surface of said outer shell which are of increased thickness at their junction to said outer shell, thereby forming hollow structures between said stiffening members for reinforcing the plastic boat hull structure.
A plastic boat hull shell structure comprising:
- opposed inner and outer shells which are integrally joined around peripheral portions thereof and which are also integrally joined at adjacent regions within said periphery by interior stiffening means including a plurality of longitudinal stiffening members integrally joined to and extending between said inner shell and a said outer shell to provide a reinforced unitary structure;
- shell and the interior surface of said outer shell which are of increased thickness at their juncture to said outer shell, thereby forming hollow structures between said stiffening members for reinforcing the plastic boat hull structure.
A plastic boat hull shell structure comprising;
- opposed inner and outer shells which are integrally joined around peripheral portions thereof and which are also integrally joined at adjacent regions within said periphery by interior stiffening means including a plurality of longitudinal stiffening members integrally joined to and extending between said inner shell and a said outer shell to provide a reinforced unitary structure;
- said stiffening members including an upper flange of a first thickness at said inner shell, a lower face of a second thickness at its joining to said outer shell, and an intermediate web between said upper flange and lower face, thereby forming hollow structures between said stiffening members to provide an integrally reinforced plastic boat hull;
- and
- the upper flanges of at least two adjacent stiffening members being in a substantially coplanar relationship.
Dependencies are inferred from the claim text.