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:
Sep. 10, 1985
Filed:
Jul. 13, 1981
Applicant:
Inventors:
Kazuomi Yamamura, Yokohama, JP;
Hideo Ishihara, Kamakura, JP;
Yoshinao Iwamoto, Fujimi, JP;
Shizuo Suzuki, Yokohama, JP;
Yuichi Sirasaki, Tokyo, JP;
Kenichi Asakawa, Hachiohji, JP;
Assignee:
Kokusai Denshin Denwa Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V / ; G01V / ; F16L / ; H02G / ;
U.S. Cl.
CPC ...
324326 ; 324127 ; 405160 ;
Abstract
A device for burying a submarine cable under the water by easily and accurately detecting the cable position and a method for guiding the same by utilizing the characteristics unique to submarine cables, by supplying an AC only to the portion of the cable between two arbitrary repeaters through a so-called transformer-coupling system to generate an AC magnetic field, and by detecting the magnetic field with a magnetic field detector.