Process for the production of hollow articles from preforms of a thermoplastic
US4221759A · kind A · utility
5Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1978 |
| Grant date | Sep 9, 1980 |
| Priority date | — |
| Expiry date | Dec 4, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2035/1658
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for the production of hollow articles from preforms of a thermoplastic material, one open end of which preforms has a neck moulded at least partially into its definitive shape. During the final blowing operation, the region corresponding to the moulded part of the preform is isolated from the remainder of the interior of the preform. The isolated region is cooled by sweeping with a cooling fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.