Apparatus and process for blow molding containers

Details Apparatus and process for blow molding containers Apparatus and process for blow molding containers

1995-10-05

1997-04-08

Timm, Catherine

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Including application of internal fluid pressure to hollow...

264906, 425526, 425534, 425540, B29C 4918

Patent

active

056184891

ABSTRACT:
An apparatus and method for blow molding hot-fill containers by a double blow process while utilizing a single blow molding wheel. The apparatus has multiple stations including preheat station for conditioning the preforms, a blow molding station having a single blow molding wheel, a heat treating station where intermediate containers are heat treated. The blow molding wheel is provided with two sets of molds, one set for forming the intermediate containers and another set for forming the final containers. Two transfer mechanism are used to achieve four different transfers of the various stages of the final container. Preforms and heat treated intermediate containers are being respectively transferred into the first and second molds by one transfer mechanism while untreated intermediate containers and final containers are respectively removed form the first and second molds by the second transfer station.

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patent: 4790741 (1988-12-01), Takausaki et al.
patent: 4836971 (1989-06-01), Denis et al.
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patent: 5248533 (1993-09-01), Sugiura et al.
patent: 5277574 (1994-01-01), Denis et al.
patent: 5540879 (1996-07-01), Orimoto et al.

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