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:
Mar. 11, 1997
Filed:
Mar. 30, 1995
Applicant:
Inventors:
Hans Raasch, M onchengladbach, DE;
Helmuth Hensen, M onchengladbach, DE;
Assignee:
W. Schlafhorst AG & Co., Moenchengladbach, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D01H / ;
U.S. Cl.
CPC ...
57302 ;
Abstract
An open-end spinning unit includes a rotor housing and a rotor revolving in the rotor housing and having a fiber collecting groove formed therein defining a groove bottom. An apparatus for cleaning the rotor includes a cleaning device having a scraper to be positioned in a predetermined position in the fiber collecting groove of the rotor. The scraper automatically assumes an optimal length independently of its abrasion from wear upon entry of the cleaning device into the rotor, for assuring a secure placement of the scraper in the bottom of the fiber collecting groove.