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. 23, 2002
Filed:
Apr. 22, 1999
Applicant:
Inventor:
Friedrich Haarer, Neubulach, DE;
Assignee:
Hollingsworth GmbH, Neubulach, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01G 1/514 ; D01G 1/900 ; B23K / ;
U.S. Cl.
CPC ...
D01G 1/514 ; D01G 1/900 ; B23K / ;
Abstract
The present invention relates to a method of producing an opening cylinder for an open-end spinning machine, comprising the step of applying to the surface of a body of the opening cylinder a spirally extending sawtooth wire. For simplifying such a method and for making it less expensive, the present invention is so conceived that the sawtooth wire is supplied continuously to the body and welded to said body.