Machine for producing polygonal cases
US5147271A · kind A · utility
69Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1991 |
| Grant date | Sep 15, 1992 |
| Priority date | — |
| Expiry date | Jul 9, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2301/10
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A case, made from a sheet material such as cardboard or corrugated board, having rectangular lateral faces connected in twos by a fold line. The fold lines are parallel to each other. Such a case comprises at least five lateral faces. It may be obtained by wrapping a sheet material blank about a mandrel in cooperation with a pressure plate whose profile corresponds to that of two or three consecutive faces of the mandrel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.