Mold apparatus

Details Mold apparatus Mold apparatus

1977-11-08

1978-12-12

Flint, Jr., J. Howard

Static molds

Container-type molding device

Having means enabling rotation of molding device, e.g.,...

249 79, 425429, B29C 500

Patent

active

041292820

ABSTRACT:
A mold apparatus for forming a molded article comprising a hollow body of a crosslinked polymer rotationally molded around a section of at least one piece of non-crosslinked conduit, which conduits protrude from said hollow body, made by attaching said conduits of non-crosslinked material at the desired location to the mold with said section being located inside a heated section of the mold so that the crosslinkable polymer during a rotational molding process is fused and crosslinked inside of the mold and around and in tight welding-type connection with said section, whereas the remainder of the piece or pieces of uncrosslinked polymer are heat-insulated, thus avoiding deformation or collapsing of these pieces.

REFERENCES:
patent: 3217078 (1965-11-01), Kleiber
patent: 3350745 (1967-11-01), Schott et al.
patent: 3843285 (1974-10-01), Nitta et al.

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