Manually operated pump for dispensing liquids under pressure
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United States of America Patent
Stats
-
Sep 11, 2001
Grant Date -
N/A
app pub date -
Feb 16, 2000
filing date -
Mar 3, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pump for manually dispensing liquids under pressure, including a cup-shaped body, and a stem a piston portion of which defines a compression chamber closed at one end by a valve formed from a ball movable on a seat in a hollow appendix in the interior of a body, and closed at the other end by a valving element movable within a stem bore and having a conical part which can seal against a conical seat in the stem, the pump having a width greater than and a length less than known pumps of equal delivery capacity.
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