Method and machine for forming cases with polygonal section made from a sheet material and cases thus obtained
US4932930A · kind A · utility
77Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1989 |
| Grant date | Jun 12, 1990 |
| Priority date | — |
| Expiry date | Mar 9, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2100/0022
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method and machine for forming a case with polygonal section from a blank of sheet material. There is an assembly of panels. The assembly of panels is wound about a mandrel with polygonal section. The tongue is fixed to the free edge of the endmost panel. The flaps situated on the same side of the panels are folded. The flaps thus folded are fixed together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.