Airless syringe
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 28, 2003
Grant Date -
Nov 7, 2002
app pub date -
May 4, 2001
filing date -
May 4, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A syringe having an air release assembly slidingly clamped to a syringe barrel, the air release assembly having a lower portion with a slider valve insert and an upper portion with a rearward facing chamber. The syringe barrel has an opening at the juncture of the barrel and a front wall and the air release assembly upper and lower portions define an opening. Forward movement of the air release assembly closes the barrel opening and prepares the syringe for fluid filling and fluid ejection. Rearward movement of the air release assembly aligns the barrel opening with the air release assembly opening so that slight plunger pressure ejects barrel liquid trapped air bubbles to an outside environment.
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