Vacuum storage device
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United States of America Patent
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-
Mar 20, 1990
Grant Date -
N/A
app pub date -
Dec 21, 1988
filing date -
Apr 7, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vacuum storage device comprises a base member, a housing sealingly and removably mounted on the base member to form a storage chamber, a pressue reducing device mounted on either of the base member and housing, and a means for introducing air into the storage chamber. The pressure reducing device comprises a barrel and a bellows pump housed therein, the bellows pump comprising a bellows body with an inlet valve, which opens the bellows body to said storage chamber during the suction stroke, and an outlet valve, which opens the bellows body to the open air during the dischargeing stroke. The pressure reducing device includes a means for communicating its barrel chamber with the storage chamber.
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