Evacuable bag having filter for reducing particulate contamination of vacuum valve
AssigneeIllinois Tool Works Inc.
InventorLinh Pham
Life of this patent
Estimating the term…
Abstract
An evacuable, reclosable bag comprising: 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.
Claims20
An evacuable, reclosable bag comprising:
- a receptacle having an interior volume and a mouth;
- a closure operable to open and close said mouth of said receptacle;
- a one-way valve penetrating said receptacle;
- and
- a filter attached to said receptacle and arranged so that any air flowing from said interior volume outward through said one-way valve must flow through said filter before flowing through said valve.
The bag as recited in claim 9, wherein said particulate matter has a particle size such that said particulate matter cannot pass through said filter.
An evacuable, reclosable bag comprising:
- a receptacle comprising first and second panels and having a mouth, an interior volume of said receptacle being accessible from an exterior volume when said mouth is in an open state;
- a flexible closure located near said mouth and comprising first and second closure strips respectively joined or connected to said first and second panels, said first and second closure strips comprising respective closure profiles that are mutual engageable to form a substantially airtight seal;
- a one-way valve assembly penetrating said first panel;
- and
- a filter attached to said first panel and arranged so that any air flowing from said interior volume outward through said one-way valve assembly must flow through said filter before flowing through said valve.
An evacuable, reclosable bag comprising:
- a receptacle having an interior volume and a mouth;
- a flexible closure disposed across said mouth of said receptacle;
- a one-way valve penetrating a wall of said receptacle;
- and
- a filter attached to a first zone on an inner surface of said wall of said receptacle, said first zone surrounding a second zone on said inner surface of said wall,
- wherein said valve penetrates said wall in said second zone.
Dependencies are inferred from the claim text.