Closure for containers for liquid
US5743437A · kind A · utility
17Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1994 |
| Grant date | Apr 28, 1998 |
| Priority date | — |
| Expiry date | Jul 8, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/80
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A reusable closure for placement within the neck of a returnable and reusable container for liquid includes an improved sealing device for preventing contamination of the container. The sealing device achieves a tight seal between a ball and a valve seat within the closure. A cap abutment or spring may optionally be provided to further enhance the tightness of the seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.