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:
Mar. 25, 2003

Filed:

May. 02, 2001
Applicant:
Inventor:

Martin D. Smalc, Parma, OH (US);

Assignee:

Graftech Inc., Parma, OH (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 7/20 ;
U.S. Cl.
CPC ...
H05K 7/20 ;
Abstract

A radial finned heat sink assembly for an electrical component is constructed from a graphite material, which may be resin impregnated. The assembly includes a base, and a plurality of spaced parallel planar fin members supported by the base. Each fin member includes a planar fin of an anisotropic graphite material having graphite layers aligned primarily with the plane of the fin. In a first construction the fin members include integral core portions. In a second construction the core portions are separately formed so that the graphene layers of the core portion are aligned primarily parallel to the core axis so that heat is efficiently transmitted from the base to the plate members along the core axis.


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