Title:
Folded-in bag valve with sleeve insert
Document Type and Number:
United States Patent 2517068


Inventors:
Weeks, Norman E.
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Sponsored by:
Flash of Genius
Publication Date:
08/01/1950
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Referenced by:
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Assignee:
BEMIS BRO BAG CO
Primary Class:
383/50
Other Classes:
383/56
International Classes:
B65D30/24
US Patent References:
0907557
1754769Valve bag and method of making the valve
1762697Means for closing the valves of valve bags
2147970Closing of valve bags
2415862Valved bag and method of manufacturing it
Foreign References:
FR808721A