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. 19, 2003
Filed:
Jul. 23, 2001
Josef Ludví{haeck over (c)}ek, Ústí nad Orlicí, CZ;
Pavel Kousalik, Ústí nad Orlicí, CZ;
Jaroslav Markl, Chodská, CZ;
Tomá{haeck over (s)} Tesa{haeck over (r)}, Ústí nad Orlicí, CZ;
Rieter CZ A.S., Usti nad Orlici, CZ;
Abstract
A method of spinning-in yarn on an operating unit of a rotor spinning machine includes steps of yarn preparation for spinning-in, steps of spinning rotor preparation for spinning-in, and final spinning-in steps. The final spinning-in steps include at least the beginning of the sliver supply to the singling-out device, leading of the fibers from the singling-out device away from the spinning rotor for a predetermined time interval, letting the spinning-in yarn end get into contact with the collecting groove of the spinning rotor, and starting of the yarn draw-off and winding. At least some final spinning-in steps are time synchronized in relation to the closing of the spinning unit thus obtaining optimum piecer quality repeatedly at all operating units of the machine.