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Safety device for monitoring a conduit

  • US 7,821,411 B1
  • Filed: 02/09/2007
  • Issued: 10/26/2010
  • Est. Priority Date: 02/09/2006
  • Status: Active Grant
First Claim
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1. A noninvasive security device for detection of blocked fluid flow within a conduit, said security device comprising:

  • a clamping body to affix substantially around the conduit; and

    a safety overflow circuit affixed to said clamping body, said safety overflow circuit including a first sensor and a second sensor, wherein said first sensor and said second sensor are positioned proximate the conduit to measure the capacitance within the conduit.

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