Method for production of hollow articles from injection molded preforms using insulated runner system
US4072737A · kind A · utility
2Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1976 |
| Grant date | Feb 7, 1978 |
| Priority date | — |
| Expiry date | Feb 27, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/2795
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Hollow articles such as bottles and containers are formed from tubular, elongated, reheated injection molded preforms made of thermoplastic material by a method which comprises injection molding said preforms using a mold distribution system having an insulated runner connecting an inlet sprue with one or more externally heated orifice gate channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.