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. 13, 1981
Filed:
Sep. 02, 1977
Applicant:
Inventor:
Jean-Claude Dubois, Royan, FR;
Assignee:
Institut Francais du Petrole, , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
367140 ; 367170 ;
Abstract
Elongated receiver of continuous structure for seismic prospecting comprising at least one sensitive assembly having two electrically conducting electrodes on both sides of a deformable element subjected to a permanent electric polarization and an electrically insulating compressible element between the deformable element and one of the electrodes. When used for prospecting on the earth the receiver further comprises masses of heavy material secured to one face of the sensitive assembly.