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. 09, 2007
Filed:
Jul. 30, 2003
Wolfgang Lerche, Kleve, DE;
Hansjakob Drissen, Bedburg-Hau, DE;
Winfried Gräfen, Duisburg, DE;
Walter Ooster, Bedburg/Hau, DE;
Wolfgang Lerche, Kleve, DE;
Hansjakob Drissen, Bedburg-Hau, DE;
Winfried Gräfen, Duisburg, DE;
Walter Ooster, Bedburg/Hau, DE;
Ipsen International GmbH, , DE;
Abstract
The invention concerns a method for blacking components. In order to develop a method which creates black surfaces on components which are not inclined to peal off, and in which no fluids or baths are used which are expensive to produce, maintain or dispose of, it is proposed that the surfaces of the component are subjected to a heat treatment with simultaneous administration of a carbon-emitting medium inside the processing space. Furthermore, the invention concerns a device that can be operated using the method of the invention.