WELKER FLOW MEASUREMENT SYSTEMS, INC.
|WELKER FLOW MEASUREMENT SYSTEMS, INC. Patent applications|
|Patent application number||Title||Published|
|20090293582||METHOD AND APPARATUS FOR A BIDIRECTIONAL METER PROVING SYSTEM - A bidirectional sphere prover is used to check the accuracy of a custody transfer meter when fluids, such as crude oil or gasoline are bought and sold. The bidirectional sphere prover of the present invention uses a straight calibrated section of pipe between the detection switches, the straight calibrated section of pipe being free of welds, flanges and elbows.||12-03-2009|