Vented fluid closure and container
US6779694B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Oct 9, 2002 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Oct 9, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/32
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A vented closure for a fluid container which will not freely pour includes a cap movable between open and closed positions relative to an annular base collar. The movable cap can be slidable to form a push-pull type closure, or can be rotatable to form a flip-type closure. In an open position, a primary liquid passageway extends through the closure to a dispensing opening. One or more air vents of small size are located in the base collar at positions spaced within a predetermined range of offsets from the dispensing opening. A divider is located to create a secondary liquid passageway to convey liquid directly into contact with the air vents which self-seal by surface tension of the liquid. The vent aperture can be protected by overlapping portions of the movable cap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.