Closure profile and die plate for extruding same
US7316052B2 · kind B2 · utility
38Cited by
77References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2005 |
| Grant date | Jan 8, 2008 |
| Priority date | — |
| Expiry date | Feb 18, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/45168
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A reclosable pouch includes interlocking male and female closure elements having elongate hollow closure profiles. The male closure profile has a hollow shaft section, and the female closure profile has a channel with at least one hollow side. A set of pleated grip strips may be disposed adjacent the closure elements to aid in opening a pouch. A die plate for extruding the closure element includes an extrudate aperture that forms an intermediate closure profile including a gap between spaced apart base wall portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.