Pre-slit donut break seal
US9821540B2 · kind B2 · utility
1Cited by
21References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2011 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Jun 11, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1082
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A break seal is provided which comprises a foam sheet and a film layer. The foam sheet comprises a center hole. The film layer is partially scored through the thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.