Compactor bag with a check valve
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United States of America Patent
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N/A
Issued Date -
Mar 25, 2004
app pub date -
Dec 30, 2002
filing date -
Sep 4, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A compactor bag which has a substantially rectangular bag body 11 made of synthetic resin films 12 and 13, the bag body having an openable side 14 provided with a zipper 15 through which an item can be put into and taken out of the bag body 11. Check valve portions 20 are provided in right-triangular areas at both corners of a side opposite the openable side 14. Each of the check valve portions 20 has a flat and closable air release path 22 which is formed by fused portions f, g and 21 of the films 12 and 13, and air inside the bag body 11 is guided into the air release path 22 by the hypotenuse of the right-triangular area and is exhausted from the bag body 11 as indicated by arrow 'd'. The check valve portions 20 communicate with a packing space of the bag body 11 at the respective hypotenuses of the right-triangular areas. The check valve portions may be made of thin and soft films inserted between the films 12 and 13.
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