Apparatus and method for generating single droplets
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United States of America Patent
Stats
-
Apr 10, 1984
Grant Date -
N/A
app pub date -
May 3, 1982
filing date -
May 3, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus and method are described for generating single droplets of fluidaterial in the 40 to 1100 micrometer range. A generator needle assembly is provided having a wire selected for insertion in the needle with critical push-fit clearance and a tapered ground pointed end having an acute included angle of less than 15 degrees. The plunger of the syringe is mechanically advanced while telescopically observing the droplet size. A pneumatic collet is used which air strips the droplet without turbulence to produce uniform sized single droplets without the inclusion of satellite droplets.
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