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:
Feb. 25, 1997
Filed:
Sep. 20, 1995
Rolf Haasen, Monchengladbach, DE;
Hans-Gunter Wedershoven, Im Loewinkel, DE;
W. Schlafhorst AG & Co., Monchen-Gladbach, DE;
Abstract
A method and apparatus for correcting an interruption of yarn travel resulting in a trailing yarn end from a take-up bobbin and a leading yarn end from a feed bobbin, wherein after the interruption of yarn travel, the take-up bobbin is braked to a stop and a sensor detects the absence of the trailing yarn end from the take-up bobbin. If the absence is detected, the take-up bobbin is rotated in the take-up direction until the trailing yarn end is wound onto the take-up bobbin. If the absence is not detected, it is assumed that the trailing yarn end is wound onto the take-up bobbin. A catcher nozzle is provided for aspirating the trailing end if it is not wound onto the take-up bobbin, and the sensor is associated with the catcher nozzle. A suction nozzle is provided for aspirating the yarn end from the peripheral surface of the take-up bobbin and placing the trailing yarn end in a yarn end joining device where it is joined to the leading yarn end.