Method for blow molding foamed walled plastic open mouthed containers
US3939236A · kind A · utility
17Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1973 |
| Grant date | Feb 17, 1976 |
| Priority date | — |
| Expiry date | Jan 24, 1993 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/01
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The method for blow molding foam walled plastic using a quadrisectional mold. A parison of foamed plastic may be blow molded to assume the contour of the closed mold, after which the molded shape is severed into two portions and ejected. Desirably, cellular plastic is blow molded to form hot drink cups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.