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:
Jan. 15, 1991
Filed:
Sep. 26, 1988
Siegfried Nurk, Albstadt-Pfeffingen, DE;
SIPRA Patententwicklungs-und Beteiligungsgesellschfat mbH, Albstadt, DE;
Abstract
A thread exchange device for multisystem knitting machines includes a knot unit for knotting a new thread on a movable old thread. The knot unit has a winding finger on which a closed loop of the new thread is formed, a part for moving the new thread into engagement with the winding finger, a loop turning lever that engages the old thread to form an open loop thereof and lays the open loop of the old thread into the closed loop of the new thread during continuous movement of the old thread. The knot unit further includes a hook that engages an end of the new thread and pulls the end of the new thread through the open loop of the old thread. The exchange device further includes a brake located between an element for establishing a thread compensation path and the knot unit for tightening a knot. The method relates to forming knots of a new thread with a movable old thread during continuous movement of the old thread with the use of the thread exchange device.