Method for making containers having ports
US4794750A · kind A · utility
27Cited by
11References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1985 |
| Grant date | Jan 3, 1989 |
| Priority date | — |
| Expiry date | Jun 27, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S493/929
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method is disclosed for making containers (40) in which a sheet of thermoplastic material (10) that is adapted to be formed into a pouch is introduced into a mold cavity (14). A molding compound (22) is also introduced into the mold cavity (14). The molding compound (22) is permitted to be bonded with the thermoplastic sheet (10) inside the mold cavity (14) to form a container port (20) in situ. The thermoplastic sheet (10) and bonded molding compound (22) are removed from the mold cavity (14) and the sheet carrying the port (20) formed from the bonded molding compound is folded and cut to form a container (40).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.