Laser scored package
US5229180A · kind A · utility
64Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 2, 1991 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | Oct 2, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24917
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A structure for use in making an easy open package comprises a thermoplastic sheet material. The sheet material has a strip of reflective metal on one surface. Over the metal strip on the opposite surface of the sheet material is a score line. The score line may be formed by a laser. The metal strip reflects the laser and provides a score line of more uniform depth and also provides barrier properties in the area of the score line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.