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:
May. 16, 1989
Filed:
Sep. 07, 1988
Gustav Memminger, D-7290 Freudenstadt, DE;
Falk Kuhn, Rottenburg, DE;
Heinz Fabschitz, Westerham, DE;
Other;
Abstract
A yarn supply apparatus for textile machines, particularly for knitting machines, has a rotatable yarn supply means supplying yarn under essentially slipless conditions to the textile machine; a speed controlled motor coupled to the yarn supply means controls the rotation of the yarn supply means. A movable yarn tension element is positioned in the path of yarn from the yarn supply means to the textile machine and is subjected to a bias force means that determines the yarn tension. A yarn reserve zone is formed in the path of the yarn from the yarn tension element to at least one of the yarn guide elements, the size of this zone depending on the position of the yarn tension element. Coupled with the yarn tension element is a transducer that provides a signal representative of the position or movement of the yarn tension element to an electrical circuit that includes the drive motor. By means of this circuit, the motor can be stopped whenever the yarn tension element, in a movement in the direction in which the yarn reserve increases in size, reaches a limit position of its working range. Adjacent to this limit position is a further operating range, in which yarn holding means are provided, for receiving yarn guided by the yarn tension element and maintained under tension to form a further and temporary yarn reserve.