Fluid retaining apparatus with ball valve
US8127789B2 · kind B2 · utility
6Cited by
25References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2003 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Dec 1, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/791
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An apparatus that can be inserted into the bottom end of liquid delivery tube for retaining fluid in the tube to aid in drinking, utilizing a ball valve that for the most part only allows unidirectional flow of fluid through the valve and into the tube to prevent the level of fluid in the tube from significantly dropping and also creates a fluid free space at the end of the tube to prevent spillage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.