Method of making a precisely partitioned bulbous-shape container

Details Method of making a precisely partitioned bulbous-shape container Method of making a precisely partitioned bulbous-shape container

1975-11-10

1977-12-27

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 97, 425525, B29C 1707

Patent

active

040655369

ABSTRACT:
A longitudinally partitioned bulbous-shape, top-opening container of unitary construction is provided which comprises a precisely shaped, sized, and oriented integral bulkhead. Such containers may be made by the method of providing a thermoplastic preform which is longitudinally partitioned by an integral bulkhead of the size, shape, and orientation desired in the finished container, and then blow molding the outer wall of the preform to the bulbous-shape of the finished container while constraining or confining the bulkhead from changing size, shape, or orientation.

REFERENCES:
patent: 2918698 (1959-12-01), Hagen et al.
patent: 2951264 (1960-09-01), Bailey
patent: 2991500 (1961-07-01), Hagen
patent: 3189422 (1965-06-01), Shea et al.
patent: 3358062 (1967-12-01), Lemelson
patent: 3538543 (1970-11-01), Nataf

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