B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
26/182
B32B 5/18 (2006.01) B03C 3/49 (2006.01) B03C 3/64 (2006.01) B29C 44/12 (2006.01) H01B 19/00 (2006.01)
Patent
CA 1083798
ABSTRACT OF THE DISCLOSURE The disclosure relates to a method for producing hollow cylindrical structures, and more particularly for producing hollow cylindrical structures which may serve as collector elec- trodes for electrostatic precipitators; the method comprising the forming of a first resin and fibrous structural layer on a rotating mandrel, then applying a foam structure forming resin on the first structural layer, then permitting the foam structure to cure into a structural condition, then lathe turning the periphery of the foam structure to a uniform annular cylindrical surface, then applying a second layer of resin and fibrous material to form an external structural layer and then finishing the exterior of the last mentioned structural layer to a uniform annular shaped surface, and finally coating the last mentioned surface with a water resistant resinous material and then removing the glossy surface from said last mentioned material to prevent surface tension of water from separating flow on said last men- tioned surface; the disclosure also relating to detailed construc- tion of the aforementioned fibrous structural layers.
294078
Honacker Horst
Sharpe James H.
Envirotech Corporation
Gowling Lafleur Henderson Llp
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