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Tank inventory and leak detection system

  • US 4,835,522 A
  • Filed: 11/05/1987
  • Issued: 05/30/1989
  • Est. Priority Date: 11/05/1987
  • Status: Expired due to Fees
First Claim
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1. Tank inventory and leak detection apparatus for detecting the status of a liquid storage system and its contents, said apparatus comprising:

  • external detection means for detecting one or more conditions of liquid external of said storage system and for providing an external liquid signal;

    internal detection means for detecting one or more conditions of liquid internal of said storage system and for producing an internal liquid signal;

    means for storing decision criteria relating one or more of said external liquid conditions and one or more of said internal liquid conditions; and

    indicating means communicating with said means for storing and responsive to said external liquid signal and said internal liquid signal for providing an indication of the status of said liquid storage system and its contents.

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