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. 23, 1984
Filed:
Dec. 21, 1982
Didier Lecacheux, Chilly Mazarin, FR;
James Lesec, Saint-Leu-La Foret, FR;
Roland Prechner, Pau, FR;
Societe Nationale Elf Aquitaine, Courbevoie, FR;
Abstract
The present invention concerns a viscosimeter adapted to operate continuously, comprising a measuring capillary in which the liquid phase whose viscosity is measured undergoes a loss of pressure. It is characterized in that the measuring capillary (17) consists of a tube of several meters length, wound around itself according to a helix having a diameter of at least 10 cm, the internal diameter of the tube being substantially comprised between 0.20 and 0.30 mm, and in that a sensor for measuring the loss of pressure consists of two identical pressure sensors (22,23) positioned at the entry and at the exit of the capillary (17) for differentially measuring the loss of pressure in this capillary.