Patent ID: 9719837
Date: 2017-08-01
CPC Classifications: G01F

Claim:
1. A bidirectional sphere prover having a 4-way valve for reversing the flow of fluids through the prover, the prover comprising: a) a straight calibrated section of pipe having at least a first detector switch proximate a first end and a second detector switch proximate a second end and said straight calibrated section of pipe having a first flange at the first end and a second flange at the second end; b) the straight calibrated section of pipe being free of flanges, lateral openings and elbows between the first detector switch and the second detector switch; c) the straight calibrated section of pipe defining a tubular interior surface; d) the first end of the straight calibrated section of pipe being in fluid communication with a first U-tube being in direct fluid communication with a first elongate concentric fabricated reducer on a first launch tube; e) the second end of the straight calibrated section of pipe being in fluid communication with a second U-tube being in direct fluid communication with a second elongate concentric fabricated reducer on a second launch tube; f) a resilient single sphere moving back and forth from the first launch tube, through the first elongate concentric fabricated reducer, through the first U-tube, through the straight calibrated section of pipe, through the second U-tube, the second elongate concentric fabricated reducer to the second launch tube, in response to actuation of the 4-way valve.