Non-metallic precision fluid transfer devices
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United States of America Patent
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Oct 3, 1995
Grant Date -
N/A
app pub date -
Aug 30, 1993
filing date -
Aug 30, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for delivering precisely measured, minute quantities of liquid has no metal parts which contact the liquid. The device employs a barrel defining member with a bore which receives a polymer coated glass or ceramic fiber which functions as a piston. Fluid is drawn into and discharged from the bore via a needle in the form of a polymer coated glass or ceramic capillary tube.
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