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:
Jun. 28, 2022
Filed:
May. 27, 2019
Contipro A.s., Dolni Dobrouc, CZ;
Marek Pokorny, Cenkovice, CZ;
Adela Kotzianova, Opava, CZ;
Jan Klemes, Moravska Trebova, CZ;
Katerina Knotkova, Chocen, CZ;
Martin Fogl, Letohrad, CZ;
Vladimir Velebny, Zamberk, CZ;
Contipro a.s., Dolni Dobrouc, CZ;
Abstract
Device for the production of nanofibrous and/or microfibrous layers having an increased thickness uniformity by spinning a liquid material (), said device comprising: a collecting electrode (), a spinning nozzle () for dispensing the liquid material () to be spun, an assembly for guiding the collecting electrode () and/or for guiding a base strip () along the collecting electrode () or adjacent to it, such that—in the area faced by the outlet orifice () of the spinning nozzle ()—the collecting electrode () and/or the base strip () move(s) in the direction (MD) spaced from the outlet orifice () of the spinning nozzle (), a power supply for generating a voltage of 10 to 150 kV between the collecting electrode () and the spinning nozzle (), at least one body (), which moves along the liquid surface to destabilize the locations of the points where fibres () are formed on the surface of the liquid material () at the outlet orifice () of the spinning nozzle (). The nanofibrous and/or microfibrous layers having an increased thickness uniformity are produced by spinning a liquid material () in an electrostatic field, wherein a body () is moved along the surface of the spun liquid in order to destabilize positions of locations, where the fibers originate.