Method forming an oriented article having a bead attached by a t

Details Method forming an oriented article having a bead attached by a t Method forming an oriented article having a bead attached by a t

1975-09-26

1977-05-31

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 89, 264163, B29C 1707

Patent

active

040269841

ABSTRACT:
The strength of the seal of an open end parison preform fabricated at orientation temperature is increased by forming a dependent bead within a closely adjacent longitudinal recess. In an alternate embodiment the appearance of seals is improved, and pin holes reduced by forming a dependent bead in a manner such that the longitudinal stem (web) connecting the bead flares outward adjacent a bottom wall of the article being molded.

REFERENCES:
patent: 3417892 (1968-12-01), Schweiger
patent: 3595116 (1971-07-01), Gilbert
patent: 3686379 (1972-08-01), Gilbert

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