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:
Feb. 25, 1986
Filed:
Oct. 16, 1984
Applicant:
Inventor:
John M Dealy, Montreal, CA;
Assignee:
Other;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 60 ;
Abstract
There is provided a method and apparatus for measuring the viscosity and other rheological properties of a viscoelastic fluid wherein the fluid flows through a fluid channel which has a plate mounted therein, the plate having a surface which is substantially parallel to a wall surface defining the channel and the plate is moved with respect to the wall to thereby subject fluid between the wall surface and the plate to a shearing deformation, and subsequently measuring the shear stress of the fluid at the wall when subjected to the shearing deformation.