B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
B29D 22/00 (2006.01) B29C 33/50 (2006.01) B29C 35/16 (2006.01) B29C 45/72 (2006.01) B29C 49/64 (2006.01) B29C 70/08 (2006.01) B29C 70/44 (2006.01) B29C 70/46 (2006.01)
Patent
CA 2372747
A method of molding a hollow, reinforced molded plastic article. A preform is provided in the shape of the article to be molded. The preform comprises randomly commingled, short lengths of thermoplastic and reinforcing fibers loosely bonded together. A core is provided within the preform and may either be a flexible inflatable core which may be removed later or a thermoplastic liner. The preform is placed in a mold and heated to fuse the thermoplastic while a pressurized liquid coolant is circulated within the core.
Essef Corporation D.b.a. Pentair Water Treatment
Sim & Mcburney
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