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:
Oct. 04, 1977
Filed:
Jun. 16, 1975
Applicant:
Inventor:
Oke A Fredriksson, Fullerton, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01V / ; G01C / ;
U.S. Cl.
CPC ...
340 / ; 324 51 ; 1791 / ;
Abstract
This invention relates to a method and apparatus for quick and convenient fault diagnosis of a geophone group-geophone cable complex of a geophysical data acquisition system used in the collection and recording of seismic information, such faults within each geophone group of such a system being identified, irrespective of the fact that a cable or cable segment is interconnected between the group under test and the fault-testing apparatus of the present invention.