Fluid filled unit formation process
US7718028B2 · kind B2 · utility
32Cited by
135References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2006 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Dec 1, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1712
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for forming fluid filled units is disclosed. In the process, a web having a series of side connected pouches are fed to an inflation station. The pouches are connected by a line of perforations. First perforations of the line of perforations that extend from an inflation opening of each pouch are shorter than second perforations of the line of perforations that extend from the first perforations toward a side edge of each pouch. The pouches filled with fluid and sealed to form fluid filled units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.