Plastic and nonmetallic article shaping or treating: processes – Reactive gas or vapor treatment of work – Work is organic material
Patent
1973-01-26
1976-03-16
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Reactive gas or vapor treatment of work
Work is organic material
264 97, 264 98, 264296, B29C 1707
Patent
active
039446425
ABSTRACT:
This invention relates to a method for blow molding articles, such as handled containers, having injection molded portions integrally formed with blow molded portions. The method includes forming a tubular blowable parison, blowing this parison in a pre-form mold, and then blowing the pre-form to its final shape in a final blow mold. The utilization of the pre-form mold as an intermediate step makes possible the formation of containers of enhanced physical characteristics, the elimination of external flash or waste portions, and the formation of a final article having an injection molded portion integrated with a biaxially oriented blown portion.
The apparatus of the invention includes the means for forming the parison, the pre-form mold, the final blow mold and the means for correlating the operation of these portions of the apparatus to attain the operation of the overall method.
REFERENCES:
patent: 2715751 (1955-08-01), Weber
patent: 2966702 (1961-01-01), Soubier
patent: 3012286 (1961-12-01), Gasmire
patent: 3052916 (1962-09-01), Campbell
patent: 3399424 (1968-09-01), Sheptak
patent: 3579622 (1971-05-01), Shaw et al.
patent: 3718724 (1973-02-01), Holzmann et al.
patent: 3781395 (1973-12-01), Uhlig
Holler E. J.
Owens--Illinois, Inc.
Rice Philip M.
Silbaugh Jan H.
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