Electricity: measuring and testing – Of geophysical surface or subsurface in situ – For small object detection or location
Patent
1993-07-26
1996-07-30
Strecker, Gerard R.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
For small object detection or location
364580, 371 225, G01V 311, G01V 365, G01N 313187, G01N 3500
Patent
active
055415164
ABSTRACT:
The present invention generally relates to a system for use in determining the location and orientation of concealed underground objects and, more particularly, to an improved locator system having a unique and improved interface with an operator. In accordance with one embodiment of the invention, a magnetic field detector for locating concealed underground objects is provided. The magnetic field detector includes a housing having an upper housing portion and a lower housing portion. A receiver is disposed within said housing for receiving magnetic field signals from the concealed underground objects. A swivel joint couples the upper housing portion and the lower housing portion to permit relative rotational motion.
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"The Lynch PL-801 GXII Pipeline and Cable Locator", Lynch Resources Ltd., 1989. Catalogue.
"METROTECH Underground Locator Products", Metrotech, 1980. Catalogue.
Querry Lester R.
Rider Alan J.
Strecker Gerard R.
The Charles Machines Works, Inc.
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