Metering dispenser
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 16, 1991
Grant Date -
N/A
app pub date -
Apr 18, 1990
filing date -
Apr 18, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system accurately dispenses fluid by filling a metering chamber with fluid from a container. A barrier is used to pressurize the fluid so that substantially no vapor or gas remains within the metering chamber and so that substantially no vapor or gas exists within the containe. A metered dose is dispensed from the metering chamber through a valved outlet.
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Family
International Classification(s)
Cited Art Landscape
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