Method and apparatus for stretching and crystallizing the neck finish of a molded plastic article
US8226397B2 · kind B2 · utility
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17References
20Claims
0Family size
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Key dates
| Filing date | Sep 2, 2011 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Sep 2, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/90
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Apparatus and method for making a molded plastic article having a stretched and crystallized neck finish. In one embodiment, a series of platforms are carried by a conveying apparatus for transporting a series of molded plastic articles along a predetermined path of travel through one or more treatment stations. At a finish widening station, the molded article, having a relatively wide and thin-walled blow-molded body portion, and a relatively narrow and thick-walled unexpanded neck finish portion, is positioned to enable insertion of a mandrel into an open top aperture of the finish portion to widen the finish.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.