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:
Nov. 17, 1992
Filed:
Mar. 01, 1991
Applicant:
Inventor:
Friedbert Schmid, Bad Uberkingen, DE;
Assignee:
Wilhelm Stahlecker GmbH, , DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; D01H / ;
U.S. Cl.
CPC ...
428344 ; 428698 ; 428699 ; 428469 ; 57404 ; 57408 ; 19112 ;
Abstract
For an opening roller of an open-end spinning arrangement, a coating is provided for the mounting made of needles or teeth and the circumferential surface of the roller, which coating consists of a metal carbide coating and a thin nickel layer applied over it.