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. 01, 1990
Filed:
Jun. 26, 1989
Paul Surkamp, Kempen, DE;
Ulrich Wirtz, Monchen-Gladbach, DE;
W. Schlafhorst & Co., , DE;
Abstract
A yarn end unwinding apparatus includes a support base for supporting a yarn package in an upright disposition and a cooperating member. The cooperating member at least partially circumferentially surrounds the upright yarn package and includes a plurality of jet nozzles for directing jet streams of gas interiorly of the cooperating member. The jet streams of gas combine together to form a spiraling stream of gas which causes planetary motion of the package. The package moves in contacting relation along the inner surface of the cooperating member while simultaneously rotating about the package axis and this planetary motion of the package causes unwinding of the yarn end therefrom into position for subsequent package unwinding engagement. The support base preferably includes a pair of relatively movable semi-cylindrical portions.