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:
Aug. 12, 2025
Filed:
Sep. 04, 2023
Applicant:
Shenzhen Tuozhu Technology Co., Ltd., Shenzhen, CN;
Inventor:
Kaiwang Tian, Shenzhen, CN;
Assignee:
SHENZHEN TUOZHU TECHNOLOGY CO., LTD., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 64/321 (2017.01); B65H 51/12 (2006.01); B33Y 30/00 (2015.01);
U.S. Cl.
CPC ...
B29C 64/321 (2017.08); B65H 51/12 (2013.01); B33Y 30/00 (2014.12); B65H 2404/421 (2013.01);
Abstract
Various embodiments provide a filament replacement mechanism for a 3D printer and a 3D printing system. In those embodiments, the filament replacement mechanism includes: a support; a filament guide unit disposed on the support and including a plurality of secondary filament guide tubes and a filament guide opening connecting with the plurality of secondary filament guide tubes, where the filament guide opening is configured to be jointed with a main filament guide tube of the 3D printer; and a plurality of filament replacement units disposed on the support.