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:
Apr. 01, 1997
Filed:
Jul. 14, 1995
Applicant:
Inventors:
Jean-Francois Armengaud, Toulouse, FR;
Alain Martignon, Oloron, FR;
Simeon Cortiade, Francon, FR;
Jacques Marti, Ibos, FR;
Assignee:
Elf Aquitaine Production, , FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
7315218 ; 73 5305 ;
Abstract
Device for evaluation of the lubricating characteristics of a drilling mud, including a vessel (14) provided with an entry (52) and an exit (58) for a mud to be analysed, a measuring shoe (40) mounted inside the vessel (14) and intended to be set in rotation, and at least one measuring sensor capable of measuring the stresses generated during a contact between the shoe and an internal surface of the vessel. According to the invention the sensor is mounted inside the shoe.