The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 09, 1999
Filed:
May. 23, 1997
Applicant:
Inventor:
Boyd B Bushman, Lewisville, TX (US);
Assignee:
Lockheed Martin Corporation, Fort Worth, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V / ;
U.S. Cl.
CPC ...
324326 ;
Abstract
The apparatus includes an electrical circuit for producing a high voltage at a high frequency with very little current and an elongated and electrically insulated electrical conductive member coupled to the circuit for producing an electrical discharge when in close proximity to a metal object in the ground. The electrical circuit is capable of producing 50,000 volts and higher. In using the apparatus, the electrical conductive member may be moved to scan the ground over a metal object to obtain an image of the shape of the metal object.