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:
May. 14, 2024
Filed:
Dec. 23, 2021
Friedrich-alexander-universitaet Erlangen-nuernberg, Erlangen, DE;
Julius-maximilians-universitaet Wuerzburg, Wuerzburg, DE;
Dirk Wolfram Schubert, Eggolsheim, DE;
Paul Dalton, Eugene, OR (US);
Stefan Schruefer, Erlangen, DE;
Friedrich-Alexander-Universitaet Erlangen-Nuernberg, Erlangen, DE;
Julius-Maximilians-Universität Würzburg, Würzburg, DE;
Abstract
In order to determine a rheological property of a fluid, the fluid is conveyed with a constant volume flow rate through a nozzle and the fluid strand thereby generated is deposited on a substrate. A relative movement takes place between the nozzle and the substrate at a forward feed velocity value. A contour of the liquid strand between the nozzle and the substrate is optically measured, and an extensional viscosity as a rheological property is deduced from knowledge of the volume flow rate, the forward feed velocity value and the contour of the fluid strand.