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. 02, 2002
Filed:
Jan. 28, 2000
Alfa Arzate, Montreal, CA;
François Bertrand, Ville St-Laurent, CA;
Olivier Reglat, Montreal, CA;
Philippe Tanguy, Ville St-Laurent, CA;
Polyvalor S.E.C., Montreal, CA;
Abstract
The apparatus ( ) is used for determining the consistency index (k) and the power law index (n) of a Newtonian fluid or non-Newtonian power law fluid. A method is also disclosed. Accordingly, the fluid flows in a laminar manner through a first ( ) and a second static mixer ( ) successively connected together by means of an intermediary pipe ( ). A first pressure differential (&Dgr;P ) corresponding to a pressure drop of the fluid through the first static mixer ( ) is measured. Similarly, a second pressure differential (&Dgr;P ) corresponding to a pressure drop of the fluid through the second static mixer ( ) is measured. Finally, the consistency index (k) and the power law index (n) are calculated using the Metzner and Otto concept generalized to static mixers. The apparent viscosity may also be calculated. This invention may be mounted directly on a main supply pipe ( ) and allows the rheological properties of the fluid to be known in real time. It also improves the mixing of the fluid and maintains its homogeneity.