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. 25, 2020
Filed:
Jun. 12, 2018
Applicant:
Maschinenfabrik Rieter Ag, Winterthur, CH;
Inventors:
Assignee:
MASCHINENFABRIK RIETER AG, Winterthur, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01H 7/78 (2006.01); D01H 4/50 (2006.01); D01H 4/10 (2006.01);
U.S. Cl.
CPC ...
D01H 7/78 (2013.01); D01H 4/50 (2013.01); D01H 4/10 (2013.01); D01H 2700/01 (2013.01);
Abstract
A method for producing a rotor cup for an open-end spinning rotor includes forming separating structures on a front-side rim of the rotor cup for breaking up and preparing a yarn end for piecing. The separating structures are formed by a non-mechanical manufacturing method without contact between the front-side rim and a mechanical forming tool. A rotor cup formed in accordance with the method is also provided.