Liquid delivery device
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United States of America Patent
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Nov 5, 1996
Issued Date -
N/A
app pub date -
Aug 5, 1994
filing date -
Aug 6, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A liquid dispensing device and the method of dispensing liquid are disclosed. The device includes a hollow gas- and liquid-tight casing, a flexible gas- and liquid-tight membrane having multiple convolutions disposed across the casing interior and dividing the interior into a propellant chamber and a liquid chamber, an outlet port from the liquid chamber. A pressure relief valve, suitable for use with the device, allows gas to escape from the device when the gas pressure exceeds a predetermined level.
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Family
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