One step molded all plastic boat and manufacture of the same

Details One step molded all plastic boat and manufacture of the same One step molded all plastic boat and manufacture of the same

1991-05-14

1993-10-19

Sotelo, Jesus D.

Ships

Boats, boat component, or attachment

Hull construction

425429, B63B 524

Patent

active

052536076

ABSTRACT:
This invention relates to a one-step formed all-plastic boat, the entire hull of which is comprised of plastic material that contains in addition small amounts of an additive and a filler. The hull has a cavity, divisional cavities, open and closed compartments, but no welded parts. The process of manufacturing the all-plastic boat comprises feeding physically modified resinous material into a closed container type boat mold, subjecting the mold to a complex motion of circular and semicircular rotations of 360.degree.-180.degree. and rockings of selected positional angles; applying an operational heat treatment at 200.degree.-450.degree. C. to the mold while the mold undergoes the complex movements; and after heat treatment, cooling the mold and then releasing the entire all-plastic boat.

REFERENCES:
patent: 3840926 (1974-10-01), Stoeberl
patent: 4247279 (1981-01-01), Masters
patent: 4365580 (1982-12-01), Blount
patent: 4741284 (1988-05-01), Madison

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