Vented fluid closure and container
US7328820B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 27, 2005 |
| Grant date | Feb 12, 2008 |
| Priority date | — |
| Expiry date | Nov 3, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/32
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A vented closure for a liquid container which will not freely pour includes a cap hinged at one side and movable between open and closed positions relative to a base collar. In an open position, a primary fluid passageway extends through a shaped mouthpiece which is elongated and tapered to conform to a user's mouth. One or more air vents of small size are located in a protected floor of the base collar at positions spaced within predetermined ranges of offsets from the dispensing opening so as to convey liquid into contact with the air vents in a manner to self-seal the air vents by surface tension of the liquid until an unbalance force is present. The cap and collar mate along an offset diagonal edge, and a grip area for the user's thumb or finger is offset from a center line. The offsets cause the cap to flip open with additional clearance and without obstructing a user's nose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.