Dispenser or sprayer with vent system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 25, 1990
Issued Date -
N/A
app pub date -
Mar 1, 1989
filing date -
Mar 1, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dispenser adapted to be connected to a container includes a first bore having an outlet for dispensing fluent material, a second bore containing a piston connected to a trigger for pumping the fluent material, and a third bore containing a vent opening and a piston for sealing the vent opening when the trigger is in the non-pumping position. A valve, spinner and springs in the first bore are unitarily formed from a plastic material.
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Cited Art Landscape
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