Method for forming/installing intake duct in waterjet-propelled marine vessel
AssigneeApex Hydro Jet, LLC
InventorPaul W. Roos
Life of this patent
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Abstract
A waterjet-propelled marine vessel having a hull with a transom and a bottom, a jet pump, and an intake duct, the improvement comprising: (1) the transom and bottom having a common opening for intake duct installation and (2) the intake duct having an intake duct upper part and an intake duct lower part, whereby the intake duct upper part closes the common opening and the intake duct lower part fits into the intake duct upper part to form the intake duct.
Claims10
A method of forming/installing an intake duct in a waterjet-propelled marine vessel including a hull molded of composite material, a jet pump and an intake duct having final thickness, comprising:
- prefabricating an intake duct upper part having an upper wall and side walls all of less-than-final thickness, and an upper flange portion;
- prefabricating a lower part having a lower flange portion;
- placing the upper part in the mold;
- and thereafter
- contemporaneously molding the hull and over-molding the prefabricated upper part to form the final-thickness intake duct integral with the hull and including the prefabricated upper part.
Dependencies are inferred from the claim text.