Wells – Above ground apparatus – Inner member anchor or seal with valve
Patent
1979-11-02
1982-01-05
Leppink, James A.
Wells
Above ground apparatus
Inner member anchor or seal with valve
166 85, 166 88, 166325, E21B 3310, E21B 3408
Patent
active
043089160
ABSTRACT:
This invention is a pitless water well adapter which incorporates a pressure relief valve in such manner that in the event the pressure relief valve is activated it discharges directly back into the well and down the well casing rather than exterior in a different part of the system as has been customary. The invention is characterized by a pitless adapter wherein the pitless adapter has been modified so as to incorporate a pressure relief valve having an opening from which water will discharge directly within the well casing.
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patent: 3334697 (1967-08-01), Edwards et al.
patent: 3467181 (1969-09-01), Maass
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Leppink James A.
Schulze Herbert C.
Suchfield George A.
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