Piston operated fluid dispensing device
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United States of America Patent
Stats
-
Feb 2, 1993
Grant Date -
N/A
app pub date -
Jun 10, 1991
filing date -
Jun 10, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a fluid dispenser a spring biased piston is mounted for reciprocable movement along a stem member which is moved longitudinally to actuate the dispenser. A metering chamber is located between the end of the piston and the end wall of a cylindrical chamber in which the piston is mounted, and axial passageways extending from opposite ends of the stem connect the metering chamber to a discharge location when the stem is in a discharge positon and connect the metering chamber to a fluid reservoir when the stem is in a fill position.
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Family
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Cited Art Landscape
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