04762176 is referenced by 14 patents and cites 9 patents.

An air-water separator used in a water well upstream of the intake on a submersible pump comprising a collar member positioned between the well casing and the water pipe including a plurality of spring-biased check valves in the collar which allow gravity flow through the collar only after a certain static head of water is built thereabove to allow sufficient time for the air bubbles to separate from the water before intake into the pump.

Title
Air-water separator
Application Number
7/29208
Publication Number
4762176
Application Date
March 23, 1987
Publication Date
August 9, 1988
Inventor
Orand C Miller
P.O. Box 711, Garden City, 67846
KS, US
Agent
Edward L Brown Jr
IPC
E21B 43/38
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