Underground object indicating device

Details Underground object indicating device Underground object indicating device

1995-11-21

1997-10-28

Hofsass, Jeffery

Communications: electrical

Condition responsive indicating system

Specific condition

340572, 340540, 324326, G03B 1318

Patent

active

056821417

ABSTRACT:
An underground object indicating device includes a longitudinal sheet material to be buried along and above an underground object. A locator cable is mounted on an upper surface of the sheet material. The locator cable includes a strand of metal wires having high conductivity and a flexible conductive sheath covering the entire length of the metal wire strand.

REFERENCES:
patent: 3665511 (1972-05-01), Wolf
patent: 4438389 (1984-03-01), De Sa
patent: 4573016 (1986-02-01), Nakamura et al.
patent: 4573829 (1986-03-01), Keene et al.
patent: 4652861 (1987-03-01), Domes
patent: 5151657 (1992-09-01), Taskjian
patent: 5557258 (1996-09-01), Eslambolchi

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