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:
Nov. 10, 2020
Filed:
Mar. 25, 2015
Applicant:
Halliburton Energy Services, Inc., Houston, TX (US);
Inventors:
Yong Fong Lau, Singapore, SG;
Wei Hsuan Huang, Singapore, SG;
Shi Jing Jackie Yeo, Singapore, SG;
Ariane Wu, Singapore, SG;
Assignee:
Halliburton Energy Services, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 1/18 (2006.01); G01V 1/42 (2006.01);
U.S. Cl.
CPC ...
G01V 1/183 (2013.01); G01V 1/42 (2013.01);
Abstract
A self-damping geophone, in some embodiments, comprises a housing containing a conductive coil and one or more springs; a first magnet suspended within said housing by the one or more springs, said conductive coil located within a magnetic field of the first magnet; and damping magnets disposed outside of said housing, each of the damping magnets oriented to repel a pole of the first magnet closest to that damping magnet.