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. 04, 2000
Filed:
May. 06, 1994
Applicant:
Inventors:
Horst Gravemann, Osnabruck, DE;
Thomas Helmenkamp, Osnabruck, DE;
Assignee:
KM Europa Metal AG, Osnabruck, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ; B22D / ;
U.S. Cl.
CPC ...
148432 ; 148435 ; 420485 ; 420488 ; 420496 ;
Abstract
A hardenable copper alloy, suitable as a material for manufacturing casting rolls and casting wheels that are subjected to changing temperature stresses, is disclosed. The hardenable copper alloy comprises 1.0 to 2.6% nickel, 0.1 to 0.45% beryllium, and the remainder of copper, inclusive of impurities resulting from manufacturing and the customary processing additives, and has a Brinell hardness of at least 200 and an electric conductivity of over 38 m/.OMEGA. mm.sup.2.