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. 17, 2004
Filed:
Nov. 02, 2001
Applicant:
Inventor:
Albert C. Abnett, Nevada, OH (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 1/116 ;
U.S. Cl.
CPC ...
G01N 1/116 ;
Abstract
A rotary viscometer is described where there is no mechanical linkage between a rotor that is rotated in a test fluid to measure viscosity and the rotor drive source. A rotor is disposed in a test fluid within a test chamber. The rotor is mounted on low friction bearings. Electromagnets disposed around the test chamber impose a constant torque on the rotor. Rotor rotation rate corresponding to fluid viscosity is measured. The viscometer may have a sealed test chamber for measuring viscosity of hazardous or corrosive test fluids without exposing the operator to the fluid.