Device for locating a boring machine

Details Device for locating a boring machine Device for locating a boring machine

1989-09-12

1991-12-03

Black, Thomas G.

Boots, shoes, and leggings

364561, 342448, G01S 504

Patent

active

050704621

ABSTRACT:
An assembly is disclosed herein for locating an underground object that is transmitting a relatively low frequency signal electromagentic field. Means are provided for scanning the earth's surface and homing in on the point where the magnetic field is strongest, and at that point, calculating the depth of the object based on the strength of the magnetic field.

REFERENCES:
patent: 4659996 (1987-04-01), Nadir
patent: 4688037 (1987-04-01), Krieg
patent: 4737794 (1988-12-01), Jones
patent: 4805165 (1989-02-01), Kawamura et al.
patent: 4806869 (1989-02-01), Chau et al.
Radio Electronics, Doug Krause, Automobile Locater, 04/82, p. 32.

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