Liquid tank venting system
US8485215B2 · kind B2 · utility
2Cited by
20References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2007 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | Apr 26, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7485
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Liquid tank venting system comprising a chamber that is inside the tank and that is equipped with a drainage device that comprises at least one opening made in the chamber and an elastomer-based non-return valve capable of sealing/freeing this opening, according to which this non-return valve is forced into a position for leaktight closure of the opening via a specific device starting from a certain liquid level in the tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.