Plastic fan blade for industrial cooling towers and method...

Details Plastic fan blade for industrial cooling towers and method... Plastic fan blade for industrial cooling towers and method...

B - Operations, Transporting

64

C

B64C 11/20 (2006.01) B29D 99/00 (2010.01) B29C 70/34 (2006.01) B29C 70/86 (2006.01) B64C 11/26 (2006.01) F04D 29/38 (2006.01) B29D 31/00 (2006.01)

Patent

CA 2087846

2087846 9202410 PCTABS00010 A molded, composite, synthetic resin blade (30) for large diameter cooling fans is discussed wherein a stepped, synthetic resin foam core (68) is wrapped by a skin of fiberglass (70) with skin thickness decreasing towards a hub end (60) of the blade. A shank (66) is embedded in the foam core (68) and is adapted to be fastened to the fan hub (32). The foam core with fiberglass skin thereon is then molded under certain temperature and pressure conditions to compress the core.

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