Leak-proof closure apparatus
US6609630B1 · kind B1 · utility
9Cited by
49References
20Claims
0Family size
Inventors
Key dates
| Filing date | Apr 22, 1999 |
| Grant date | Aug 26, 2003 |
| Priority date | — |
| Expiry date | Apr 22, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A leak-proof closure (10) for dispensing liquid beverages from a container. The closure (10) contains a outlet passage (14) which is open at both ends. Within outlet passage (14) there is a membrane (13) which denies communication between the interior of the container and the flow opening (15). When external suction is applied to the end of outlet passage (14), membrane (13) sealingly disengages from circumferential seal member (12). This allows the contained beverage to egress through the flow opening (15). When the external suction is removed, membrane (13) automatically sealingly engages with circumferential seal member (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.