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. 30, 2002
Filed:
Oct. 13, 2000
Murata Kikai Kabushiki Kaisha, Kyoto, JP;
Abstract
Although many conventional ribbon winding preventing methods have substantially solved a ribbon winding problem in terms of the appearance of a package, there is still a large difference between a ribbon winding layer and the other layers in, for example, unwinding performance for fast unwinding during a postprocess. In a configuration for using a traverse groove formed in a traverse drum to traverse and wind a yarn into a package the traverse drum has a plurality of continuous traverse grooves for different winding values formed therein. This configuration also has means for switching a yarn path to determine which of the plurality of continuous traverse grooves for different winding values used to traverse the yarn. Means for detecting a diameter at which ribbon winding may occur is also provided to effect such control that the winding number for the traverse drum is changed when a package diameter is close to the ribbon winding diameter.