Fluid dispensing device
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United States of America Patent
Stats
-
Nov 3, 1981
Issued Date -
N/A
app pub date -
Apr 28, 1980
filing date -
Nov 8, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dispensing device comprises a metering assembly adapted to be coupled to a conventional syringe, which metering assembly includes a long length of capillary tubing through which the fluid must pass into a flexible hose which delivers the fluid and means for applying a uniform force to the plunger to provide fluid flow through the capillary tube at a slow, steady rate over a long period of time. The metering assembly includes parts moveable between a metering position at which fluid flowing through the metering assembly must pass through the capillary tubing, and a purging position at which fluid propelled by manual operation of the syringe can bypass the capillary tube and flow rapidly through the metering assembly to purge the hose.
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