Method for making a plastic container having a port adjacent the

Details Method for making a plastic container having a port adjacent the Method for making a plastic container having a port adjacent the

1976-09-20

1978-05-30

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

425525, 425529, B29C 1707

Patent

active

040923924

ABSTRACT:
Method for making containers having enhanced emptying capability include a filling/emptying opening disposed closely adjacent the container sidewall and extending through integral top closure structure. The container sidewall has a portion contiguous with the filling/emptying opening which extends therefrom without radial step discontinuity, thus avoiding well formation adjacent the opening. A parison is stretched unidirectionally and transversely against restraint by a blow pin to avoid buildup of material in the sidewall portion contiguous with the filling/emptying opening and the stretched parison is blow molded to form the container.

REFERENCES:
patent: 3100317 (1963-08-01), Perry
patent: 3449480 (1969-06-01), Hough
patent: 3452391 (1969-07-01), Langecker
patent: 3493641 (1970-02-01), Svendsen

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