Article of plastic material having a neck portion including annu

Details Article of plastic material having a neck portion including annu Article of plastic material having a neck portion including annu

1983-02-15

1984-01-17

Dixon, Jr., William R.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

215 1C, 4285428, 428 35, B65D 2300

Patent

active

044264160

ABSTRACT:
An article of thermoplastic material adapted for being molded into a container comprising a tubular neck portion including annular protuberances of hollow ring-shaped profile, and a tubular shoulder portion continuing from the neck portion. The material of the wall of the neck portion is substantially monoaxially oriented and the annular protuberances are circumferentially expanded from the wall without axial strain of the monoaxially oriented material of the wall whereby the material in the neck portion is of substantially uniform thickness and monoaxially oriented therethroughout including the annular protuberances.

REFERENCES:
patent: 3651186 (1972-03-01), Hall
patent: 3859408 (1975-01-01), Voss et al.
patent: 3862698 (1975-01-01), Hafele
patent: 3934743 (1976-01-01), McChesney et al.
patent: 4097570 (1978-06-01), Dickson et al.
patent: 4374878 (1983-02-01), Jakobsen et al.

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