Pouring spout for liquid containers, and liquid containers constructed therewith
US6732889B2 · kind B2 · utility
16Cited by
9References
24Claims
0Family size
Inventors
Key dates
| Filing date | Feb 6, 2002 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Feb 14, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D77/065
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A pouring spout for a liquid container, the pouring spout including a pliable plastic sheet defining one side of the pouring spout and freely movable towards and away from an opposite side of the pouring spout to close and open the pouring spout for dispensing liquid therethrough. The pliable plastic sheet is dimensioned such that when liquid is not being dispensed from the pouring spout, the pliable plastic sheet moves towards and into contact with the opposite surface and adheres thereto by surface tension to produce a self-sealing action with respect to the pouring spout.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.