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:
Jul. 07, 2026
Filed:
Jan. 15, 2025
Wuhan Textile University, Wuhan, CN;
WUHAN TEXTILE UNIVERSITY, Wuhan, CN;
Abstract
Provided are a calculus spinning device and method for producing wrapped-core yarns. The calculus spinning device includes a feeding unit, an auxiliary core-wrapping unit and a yarn winding unit. The feeding unit includes: a staple fiber feeding unit, configured to stretch a roving into a staple fiber strand and feed the staple fiber strand into the auxiliary core-wrapping unit, and a core yarn feeding unit, configured to feed a core yarn into the auxiliary core-wrapping unit. The auxiliary core-wrapping unit includes: an auxiliary core-wrapping assembly; a pressurizing/conveying assembly, configured to provide pressure or power to the auxiliary core-wrapping assembly; a yarn guiding assembly, disposed between the auxiliary core-wrapping assembly and the yarn winding unit; and a wrapping area for wrapping and converging.