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:
Oct. 03, 2000
Filed:
Apr. 20, 1999
Helmut Kohlen, Erkelenz, DE;
W. Schlafhorst AG & Co., , DE;
Abstract
A yarn manipulating device for textile packages, e.g., a preparation device (17) for loosening and placing the yarn end (30) of a spinning cop (16) in preparation for use as the feeding bobbin in a winding machine, comprises pneumatic yarn-end receiving member (18) connected via a suction line (23) to a housing (31) which contains an air aperture (33) and a yarn separating device (32) and therefrom to the vacuum system of a textile machine, preferably to a waste collector (24). The suction line (23) connecting the yarn-end receiving member (18) to the housing comprises an end (34) which extends inwardly past the front housing wall (35), as viewed in the direction of flow R of the suction air (36). When suction air (36) is flowing through the housing (31) to aspirate a yarn end, an area of air turbulence (40) forms in the lateral area surrounding the tubular connecting portion (34) which reliably prevents yarn fluff from settling inside the housing (31) and on the operating elements therein and thereby to avoid adversely influencing their operability.