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Inductive clamp for applying signal to buried utilities

  • US 7,288,929 B2
  • Filed: 07/19/2005
  • Issued: 10/30/2007
  • Est. Priority Date: 07/19/2005
  • Status: Active Grant
First Claim
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1. An inductive clamp, comprising:

  • a pair of jaws configured to surround a conductor;

    a pair of handles, each connected to a corresponding jaw;

    a pivotal connection that allows the jaws to close around the conductor;

    a ferromagnetic core mounted in each jaw;

    a coil surrounding at least one of the cores; and

    means mounted in at least one of the jaws or handles for indicating to a user that a signal has been applied to at least one of the cores through the coil.

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