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.

Date of Patent:
Dec. 26, 1989

Filed:

Oct. 21, 1986
Applicant:
Inventor:

Karel N Vermeiren, Woerden, NL;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
73 10 ;
Abstract

A device for measuring the effective viscosity of a lubricant in which a motor rotates one element of a bearing with respect to the other, the lubricant being supplied to the bearing. The bearing is part of a sensor that outputs a signal corresponding to the percentage of contact time between the elements of the bearing. A speed regulator for the motor is responsive to the output of the sensor to maintain the speed of relative movement so that no roughness contacts occur in the bearing, at which time the motor speed is a measure of viscosity.


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Vermeiren, Karel. (1989). Device for measuring the effective viscosity of a lubricant (U.S. Patent No. 4888976). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4888976

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