Pouch air valve used on sealing pouches
US8936044B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jul 10, 2013 |
| Grant date | Jan 20, 2015 |
| Priority date | — |
| Expiry date | Jul 10, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7882
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A pouch air valve used on a sealing pouch comprises a coupling duct and a piercing base. The coupling duct includes a duct, an air valve and a first suction plate. The piercing base has a piercing head and a second suction plate. The first suction plate surrounds and seals the duct to form coupling therewith. The piercing head has an airflow passage running through two sides thereof. The second suction plate surrounds and seals the piercing head to form coupling therewith. The piercing base is positioned at one side of the sealing pouch while the duct is directly aligned and coupled with the piercing head from another side of the sealing pouch so that the piercing head can pierce through the sealing pouch to allow the first and second suction plates to attract each other and anchor on the sealing pouch which serves as separation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.