Method and apparatus for rotationally casting a plastic tank...

Details Method and apparatus for rotationally casting a plastic tank... Method and apparatus for rotationally casting a plastic tank...

B - Operations, Transporting

29

C

18/1107

B29C 41/04 (2006.01) B29C 33/14 (2006.01) B29C 33/30 (2006.01) B29C 41/20 (2006.01) B29C 41/06 (2006.01)

Patent

CA 1287723

METHOD AND APPARATUS FOR ROTATIONALLY CASTING A PLASTIC TANK LINER HAVING AN ACCESS FITTING ABSTRACT OF THE DISCLOSURE There is disclosed apparatus for rotationally casting a plastic liner for a pressure vessel having a metal access fitting molded therein. The apparatus in- cludes a rotational casting arm having a mold supporting surface and adapted to be rotated about orthogonal axes. A hollow mold having a mold cavity surface conforming to the outside surface of the liner to be molded is remov- ably attached to the mold supporting surface together with a metal access fitting. The metal access fitting has a longitudinal axis aligned with one of the orthogo- nal axes and has at least a first surface portion extend- ing into the mold cavity. The first surface portion and the surface of the mold cavity are coated with plastic upon mold rotation to form the plastic liner.

519372

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