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.

Date of Patent:
Sep. 14, 1999

Filed:

Oct. 21, 1996
Applicant:
Inventor:

Markus Spring, Eschlikon, CH;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ; A47J / ; B32B / ;
U.S. Cl.
CPC ...
428653 ; 428654 ; 428685 ; 2205731 ; 99DI / ;
Abstract

The composite article includes a core layer of an aluminium alloy. This core layer is arranged between two outer layer portions which are structured as mere images of each other relative to the core layer. Such an outer layer portion may include a layer of pure aluminium arranged on the core layer followed by a layer of carbon steel and finally a layer of an austenitic high-grade steel forming the outermost layer. This composite article has an excellent heat conducting property and is easily magnetizable. The arrangement of the individual layers does not lead to difficulties such as detaching of layers, rupturing of layers or the forming of waves during a cold deforming, drawing etc. of the composite article.


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