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Method and device for determining a fill level of liquid in a container

  • US 6,532,813 B1
  • Filed: 09/05/2000
  • Issued: 03/18/2003
  • Est. Priority Date: 09/04/1999
  • Status: Expired due to Fees
First Claim
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1. A method for determining a fill level of a liquid in a container comprising the steps of:

  • (a) operating liquid delivery means for one of emptying and filling a measuring chamber arranged in the container to a target level at a known pressure difference between the container and the liquid delivery means, the measuring chamber extending above the maximum level of the container;

    (b) determining the time required for the one of emptying and filling the measuring chamber to the target level; and

    (c) converting the time determined in said step (b) into the fill level in the container.

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