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Water meter with magnetically driven flow restriction valve

  • US 10,161,777 B2
  • Filed: 06/14/2016
  • Issued: 12/25/2018
  • Est. Priority Date: 06/14/2016
  • Status: Active Grant
First Claim
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1. A utility flow meter including a magnetically driven valve, the meter having a pressure vessel providing a flow path from a meter inlet to a meter outlet, the valve comprising:

  • a valve member positioned within the valve in the pressure vessel for movement between an open position allowing flow unrestricted by the valve member through the flow meter and a flow restriction position in which flow through the flow meter is limited to less than the unrestricted flow; and

    an electrically operable control device for controlling movement of the valve member including a dry-side magnet assembly and a wet-side magnet assembly,wherein the electrically operable control device receives command signals to rotate the dry-side magnet assembly, inducing rotation of the wet-side magnet assembly to move the valve member and thereby increase or decrease flow through the metering chamber,wherein valve member is a gate configured for transverse movement along an axis of a lead screw rotationally fixed to the wet-side magnet assembly, wherein the transverse movement is driven by rotation of the wet-side magnet assembly and is perpendicular to a flow path of flow through the utility meter.

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