Liquid dosing apparatus
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United States of America Patent
Stats
-
Mar 17, 1981
Grant Date -
N/A
app pub date -
Jul 9, 1979
filing date -
Jul 19, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention is directed to an apparatus for dosing a solution into a liquid conduit by means of a piston dosing pump mechanically driven by the liquid pressure, which comprises a dosing pump having a chamber containing liquid from the conduit and into which the solution is delivered from a supply source, a spring-biased nonreturn valve between the dosing pump chamber and the liquid conduit, and a second pump which supplies fresh liquid to the dosing pump chamber, the piston of the second pump being synchronized with the piston of the dosing pump.
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