Closure with linerless seal
US5161707A · kind A · utility
19Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1992 |
| Grant date | Nov 10, 1992 |
| Priority date | — |
| Expiry date | Feb 20, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S215/01
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A linerless closure which provides an effective seal against oxygen penetration and moisture evaporation includes a cap with an inner annular member defining an annular outwardly directed sealing edge which forms a line seal with the inner cylindrical surface of a container wall and an outer annular member defining an annular inwardly directed sealing edge which seals against the outer cylindrical surface of a container wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.