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:
Jan. 09, 1979
Filed:
Apr. 15, 1977
Applicant:
Inventor:
Frank L Lankford, Jr, Bellaire, TX (US);
Assignee:
Texaco Inc., New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G01V / ; G01V / ;
U.S. Cl.
CPC ...
340 / ; 340514 ; 324 51 ; 1791 / ;
Abstract
A system for locating discontinuities in land seismic geophone cables, which cables have plural sections with electrical connectors at the ends of each section. One of the connectors of each section has a relay incorporated with it, and includes a circuit for connecting a short circuit between all of the plural geophone circuit conductors. The short circuit connection is made when the relay is actuated, and the relay is actuated upon command from a recording station.