Substantially leakproof zipper closure for bags and method
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United States of America Patent
Stats
-
Oct 28, 1986
Grant Date -
N/A
app pub date -
Dec 20, 1984
filing date -
Dec 20, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hood-like top closure on a bag top has end portions extending beyond opposite sides of the bag and the end portions are closed against leakage. The top closure may have a zipper separably connecting a pair of attachment flanges one of which extends along and is secured to one face of the bag top along the top opening and the other of which flanges is secured to a second face of the bag top along the opening. More particularly, the end portions of the attachment flanges are adhesively bonded so as to prevent sifting or leakage therethrough. A method of and apparatus for making the bag are also provided.
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Family
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