Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – By gas forming or expanding
Patent
1997-09-08
1998-12-22
Kuhns, Allan R.
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
By gas forming or expanding
264 51, 264157, B29C 4402, B29C 4408
Patent
active
058514627
ABSTRACT:
A method for making a surfboard includes a foamable material sheet cut into a number of panels and disposed in a mold device for hot pressing the panels and for expanding the panels to a prototype having a volume about 6 to 10 times greater than that of the panels. The prototype is then hot-pressed again for further expanding the prototype to the surfboard having a volume about 2 to 3 times greater than that of the prototype. The mold cavity includes tapered peripheral portions for forming tapered sides and tapered nose and tapered tail for the surfboard.
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Kuhns Allan R.
Sun Own Industrial Co., Ltd.
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