Blow molded article

Details Blow molded article Blow molded article

1982-09-29

1985-05-07

Thibodeau, Paul J.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

138119, 138121, 264533, 428182, B32B 326, B32B 328

Patent

active

045158428

ABSTRACT:
A blow molded hollow plastic article having openings at both ends. One of those openings is a main opening and a secondary opening defined by an angled passageway is provided adjacent the main opening. The article is blow molded in a single operation by a method which includes the step of laterally stretching a tubular parison from which the article is to be molded so as to receive a primary mandrel for forming said opening and a secondary mandrel for forming the passageway. Air is introduced into the parison through the secondary mandrel to form the inner end portion of the passageway while the parison is expanded to conform to the shape of the mold.

REFERENCES:
patent: 3492888 (1970-03-01), Nishimura et al.
patent: 4118452 (1978-10-01), Myers et al.

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