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:
Jul. 25, 1989
Filed:
Apr. 08, 1988
Applicant:
Inventor:
Antonius Hamer, Eindhoven, NL;
Assignee:
Sulzer Brothers Limited, Winterthur, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D03D / ;
U.S. Cl.
CPC ...
139452 ;
Abstract
The weft yarn store includes a stationary drum for a supply of weft yarn as well as an electromagnetic yarn clamp for retaining the weft yarn on the drum periphery. The clamp includes a locking pin which is connected to an armature of the electromagnet for pressing a yarn against an abutment surface of the drum. The electromagnetic yarn clamp is also provided with apertures through which cooling air may flow into and through the clamp in order to cool the winding and armature. In addition, the cooling air may be directed onto the abutment surface of the drum to keep this area free from deposits of fluff.