Forming a mouthpiece on a preform

Details Forming a mouthpiece on a preform Forming a mouthpiece on a preform

1980-08-28

1982-06-08

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264533, 264296, 264322, 425525, 425535, 425392, B29C 1700, B29C 1707

Patent

active

043339042

ABSTRACT:
A process for forming a mouthpiece on a preform formed from a tubular blank consisting of thermoplastic material, which is intended for the production of a container, e.g. by blow molding, whereby connecting means, such as a thread, which is adapted to a suitable form of closure of the container is formed on the outside of the mouthpiece. The process comprises inserting the blank between an outer mold section with a mold portion for the attachment surface of the connecting means and an inner mold section, whereupon a driven relative axial movement of the two mold sections relative to each other forces the material of the blank, in tightly enclosed manner, radially outwards into the mold portion for the attachment surface, and an axial head cup is provided.

REFERENCES:
patent: 3311950 (1967-04-01), Strauss
patent: 3466702 (1969-09-01), Stenger
patent: 3478913 (1969-11-01), Kemp
patent: 3817677 (1974-06-01), Seefluth
patent: 3969060 (1976-07-01), Rosenkranz et al.
patent: 3989786 (1976-11-01), Mehnert et al.
patent: 4115496 (1978-09-01), Krall

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