Rotational molded tank

Details Rotational molded tank Rotational molded tank

B - Operations, Transporting

29

C

B29C 41/04 (2006.01) B29C 33/34 (2006.01) B29D 23/00 (2006.01) B60K 15/03 (2006.01) B65D 1/00 (2006.01)

Patent

CA 2624065

A rotational mold comprises a main portion for forming a hollow body and an inlet tube portion for forming an inlet tube on the hollow body. The inlet tube portion comprises a grooved collar and an annular end wall at one end of the collar for forming external threads about the inlet tube and a peripheral rim about an opening of the inlet tube. A shaft is joined to the annular end wall to extend through the collar to define an annular gap therebetween and includes material thereon spaced from the annular end wall which is arranged for resisting material being formed thereon during molding. The opening of the inlet tube of the finished molded part is thus arranged to be wholly formed by the shaft during molding without subsequent trimming being required.

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