Plungerless syringe
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United States of America Patent
Stats
-
Apr 7, 1992
Grant Date -
N/A
app pub date -
Sep 18, 1990
filing date -
Sep 18, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hollow, molded, disposable, plastic syringe is provided with an air trap chamber in fluid communication with a collapsible container portion. With the air trap chamber extending upwardly from the container portion, air is trapped in the chamber when the container is collapsed to eject liquid out of the container.
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