Multi-purpose valve for extending shelf-life using vacuuming or injecting gas
US9618130B1 · kind B1 · utility
15Cited by
55References
19Claims
0Family size
Inventor
Key dates
| Filing date | Nov 29, 2015 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Nov 29, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D31/147
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A multifunctional valve features a pumping function and a vacuuming function. The valve can be implemented in any closed container having a removable lid or a bag having a resealable zipper or any other similar sealable feature. The valve also features a tethered plug to additionally provide sealing. The valve incorporates a spacer or washer when used in thin walls to provide support. When the valve is used with a bag, the spacer or washer incorporates footing so that the valve does not collapse on its own when the valve is used in conjunction with a vacuum pump or a gas pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.