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. 08, 1991
Filed:
Jun. 30, 1989
Applicant:
Inventor:
Karl-Heinz Schmolke, Neuweiler, DE;
Assignee:
Hollingsworth GmbH, Neubulach, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
21912164 ; 21912172 ;
Abstract
A method producing opening roller rings for open-end spinning machines whereby a saw-tooth wire provided with a foot, is helically wound on a core and welded together to form a tube; the core is forced out of the tube and is subsequently cut to form opening roller rings.