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:
Mar. 03, 2026

Filed:

Sep. 06, 2023
Applicant:

Zhejiang Aegis New Materials Co., Ltd., Zhejiang, CN;

Inventors:

Fei He, Zhejiang, CN;

Yang Li, Zhejiang, CN;

Qingfa Lai, Zhejiang, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 11/02 (2006.01); B01D 11/00 (2006.01);
U.S. Cl.
CPC ...
B01D 11/0288 (2013.01); B01D 11/028 (2013.01); B01D 2011/002 (2013.01);
Abstract

A countercurrent extraction device for spinning includes an extraction box containing extraction liquid, and the extraction box is provided with a plurality of partition assemblies, and the extraction box is partitioned into a plurality of extraction chambers by the partition assemblies; each of the partition assemblies includes a first plate and a second plate, two ends of the first plate are fixedly connected to two sidewalls of the extraction box, and a first gap is provided between a lower edge of the first plate and a bottom wall of the extraction box; a lower edge of the second plate is connected to the bottom wall of the extraction box, a second gap is provided between a top edge of the second plate and a top wall of the extraction box, and heights of a plurality of second plates are gradually decreased along a flow direction of the extraction liquid.


Find Patent Forward Citations

He, Fei. (2026). Countercurrent extraction device for spinning (U.S. Patent No. 12564797). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12564797

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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