Measuring and testing – Volume or rate of flow – Combined
Patent
1985-04-01
1986-09-30
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
Combined
1374542, 137512, G01F 1518
Patent
active
046141138
ABSTRACT:
A water meter service installation including both a water meter and a backflow protection device, both utilizing the same water meter box. The present installation can be retrofitted to existing meter boxes in the field as an elongated tubular extension is detachably connected to the water meter box in alignment with an opening therein, the extension extending therefrom and being capable of housing a cartridge insert member telescopingly positioned therein, the cartridge insert member having a pair of check valves in series to prevent backflow of water through the meter. By utilizing the tubular extension bolted to the exterior of the meter box, very little, if any area is taken up within the meter box and, thus, an existing meter box can still accommodate the conventional water meter while being provided with a backflow protection device in the form of a double valve cartridge insert.
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"Water Meter Installation Applications", Watts Regulator Company, Watts No. 7 Residential Dual Check Backflow Preventer, Jun. 1981.
Daghe Joseph L.
Sands Robert E.
Goldstein Herbert
Mueller Co.
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