Patent · US Expired

Rotational viscosimeter

US4592226A · kind A · utility

10Cited by

0References

9Claims

0Family size

Assignee

Nukem, LLC · DE

Inventors

Manfred Weber · Greensboro, US
Mehmet Dedegil · Karlsruhe, DE

Key dates

Filing date	Jun 14, 1985
Grant date	Jun 3, 1986
Priority date	—
Expiry date	Jun 14, 2005

Classification

Technology area (CPC G)Physics
CPC primaryG01N11/14
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A rotational viscosimeter is used for determining the flow properties of flowable mixtures having coarse grain components; the device includes a pot with a centrally journaled, rotatable cylinder therein wherein the annular gap between the inner cylinder and pot is at least five times greater than the largest particle diameter of the solids located in this annular gap, there is a sealing liquid located in the pot under and around a lower end of the inner cylinder at least up to the lower lip formed thereon. The surface of the inner cylinder and/or the inner surface of the pot beyond the sealing liquid level is roughened or provided with grooves.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.