Measuring and testing – Volume or rate of flow – Weir type
Patent
1992-01-29
1999-02-02
Chilcot, Richard
Measuring and testing
Volume or rate of flow
Weir type
7386163, G01N 120
Patent
active
RE0360694
ABSTRACT:
A portable wastewater flow meter particularly adapted for temporary use at a single location in measuring the rate of liquid flow in a circular entrance conduit of a sewer manhole both under free flow and submerged, open channel conditions and under fill pipe, surcharged conditions, comprising an apparatus having a cylindrical external surface and an inner surface that constricts the flow through the apparatus in such a manner that a relationship exists between (1) the difference between the static pressure head of liquid flowing through the entrance of the apparatus and the static pressure head of liquid flowing through the constriction, and (2) the rate of liquid flow through the apparatus.
REFERENCES:
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BIF Industries Technical Bulletin 110-P1, Aug. 1958, p. 17.
Harry G. Wenzel, Jr.--"Meter for Sewer Flow Measurement" From Journal of the Hydraulics Division, Jan. 1975, pp. 115-133.
Floyd A. Nagler--"New Flow Meter Uses Side Contractions Only".
George F. Smoot--"A Rainfall--Runoff Quantity-Quality Data Collection System" From Proceedings of a Research Conference, Aug. 1974.
Chilcot Richard
Dougherty Elizabeth L.
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