Assignee: Norscan Inc.

Location: Conover, NC
No. of patents: 3

Number	Title	Issue Date
6437572	Interactive method and apparatus for locating and identifying utilities The invention provides an interactive means to locate and identify underground utilities. The apparatus is used with a marker associated with an elongate electrical conductor, which may be a cable shield or a trace wire. It includes a remote, portable pro...	08/20/2002
6194889	Enhancement of tone transmission over cable sheaths for cable location A transmission enhancement system is used for strengthening low frequency cable locating signals on the metallic shields of long underground cables. The system includes equalization circuits on the cable armour or shield at regular intervals, for example ...	02/27/2001
6181140	Method of estimating the location of a cable break including a means to measure resistive fault levels for cable sections A method and apparatus are used for locating cable breaks and resistive faults in cables, including fibre optic cables. The conductive shield or armour of the cable is divided into sections, usually at a splice. A step function voltage is applied to one e...	01/30/2001

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