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:
Jul. 29, 1986
Filed:
Nov. 29, 1983
Applicant:
Inventor:
Christopher S Cowles, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V / ;
U.S. Cl.
CPC ...
367 75 ; 367185 ;
Abstract
A rotational geophone is provided. This rotational geophone employs a coil mounted on a torsional wire in a static magnetic field to detect movement of the frame relative to the coil. This rotational geophone may also be combined with a velocity geophone to obtain seismic data representing shear waves traveling in a particular direction.