Reclosable plastic bag and method for forming
US6550965B2 · kind B2 · utility
33Cited by
53References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2001 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Jan 24, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/45168
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A reclosable plastic bag includes a pouch and first and second extruded fastener members heat sealed or welded thereto. One of the fastener members is provided with a plurality of standoffs in a flange area providing spaces between it and the opposing flange of the opposing fastening member to permit heat sealing or welding of the fastener members to the respective sidewalls of the pouch without inadvertently heat sealing or welding the flanges of the opposing fastener members together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.