Process for making containers
US4224275A · kind A · utility
24Cited by
20References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 1, 1979 |
| Grant date | Sep 23, 1980 |
| Priority date | — |
| Expiry date | Feb 1, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C51/10
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for thermoforming laminated hollow articles including a plurality of processing steps wherein a thermoplastic material heated to a plastic state is selectively deposited area-wise on a sheet of thermoplastic material and such resulting laminate of thermoplastic materials is positioned proximate to a female mold of a thermoforming apparatus including preferably a plug assist for a subsequent forming of laminated hollow articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.