B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/15
B29D 23/08 (1980.01)
Patent
CA 1068856
TITLE APPARATUS FOR CASTING TUBULAR, POLYMERIC MEMBRANES FOR REVERSE OSMOSIS AND ULTRAFILTRATION INVENTORS William L. Thayer Lucien Pageau Srinivasa Sourirajan ABSTRACT OF DISCLOSURE An apparatus for casting tubular polymeric membranes for reverse osmosis and ultrafiltration which includes a plurality of upwardly extending casting tubes, a manifold with branch outlets for mounting the casting tubes to extend upwardly therefrom, a cas- ting bob assembly comprising a centering sleeve with a screw threaded bore and cylindrical extension, a casting bob screwed into the centering sleeve and having casting solution outlet ports to an annular gap between the casting bob and the cas- ting sleeve, the annular gap being adjustable by screwing the casting bob into and out of the centering sleeve, and a trans- port sleeve which is pressed on to the casting bob and the cylindrical extension of the centering sleeve for transporting the assembly from one casting tube to another between casting operations, and a flexible sleeve and a hose clamp for releasably securing the transport sleeve in a lower end of each casting tube and sealing the lower ends of each casting tube to a branch outlet.
277416
Pageau Lucien
Sourirajan Srinivasa
Thayer William L.
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