Method and apparatus for forming paperboard containers
US4832676A · kind A · utility
74Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1987 |
| Grant date | May 23, 1989 |
| Priority date | — |
| Expiry date | Oct 21, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S493/902
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for forming a container from a sheet of blank material, whereby a segmented male die member first forms the bottom and then the sidewall and rim of the container prior to the formation of the lip portion of the container while the blank is being restrained in a radial direction by the engagement of the blank by two opposing draw pad members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.