Evacuable bag having filter for reducing particulate contamination of vacuum valve
US7713320B2 · kind B2 · utility
7Cited by
15References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2006 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Mar 4, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/784
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An evacuable, reclosable bag including a receptacle having an interior volume and a mouth; a closure operable to open and close the mouth; a one-way valve penetrating a wall of the receptacle; and a filter attached to the same receptacle wall. The filter is arranged so that any air flowing from the interior volume outward through the one-way valve must flow through the filter before flowing through the valve. The filter may be a mesh or fabric (woven or nonwoven) having openings sized to prevent the passage of particulate matter placed inside the bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.