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Device for early detection of underground utilities during excavation and method of using the same

  • US 6,371,692 B1
  • Filed: 05/11/1999
  • Issued: 04/16/2002
  • Est. Priority Date: 05/11/1999
  • Status: Expired due to Fees
First Claim
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1. A device for ground burial in a trench containing an underground utility line or elements, the device being useful for defining an outer boundary of the trench when the device is uncovered during the excavation, thereby warning of the presence of the underground utility line or element, the device comprising:

  • at least one sheet of non-conductive material;

    indicia on the at least one sheet forming a cautionary message for indicating the presence of an underground utility line or element; and

    at least one support element coupled to the at least one sheet for vertically positioning the device against a sidewall of a trench containing the underground utility line or element to be detected by the device.

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