Patents Assigned to WELKER FLOW MEASUREMENT SYSTEMS, INC.
  • Method and apparatus for a bidirectional meter proving system
    Patent number: 8505355
    Abstract: 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.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: August 13, 2013
    Assignee: Welker Flow Measurement Systems, Inc.
    Inventor: Daniel J. Rudroff
  • METHOD AND APPARATUS FOR A BIDIRECTIONAL METER PROVING SYSTEM
    Publication number: 20090293582
    Abstract: 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.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 3, 2009
    Applicant: WELKER FLOW MEASUREMENT SYSTEMS, INC.
    Inventor: Daniel J. Rudroff