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:
Oct. 26, 2010

Filed:

Aug. 15, 2006
Applicants:

Thierry Waeckerle, Nevers, FR;

Lucien Coutu, Sauvigny le Bois, FR;

Marc Leroy, Antony, FR;

Laurent Chaput, Sauvigny le Bois, FR;

Herve Fraisse, Nevers, FR;

Inventors:

Thierry Waeckerle, Nevers, FR;

Lucien Coutu, Sauvigny le Bois, FR;

Marc Leroy, Antony, FR;

Laurent Chaput, Sauvigny le Bois, FR;

Herve Fraisse, Nevers, FR;

Assignee:

Imphy Ugine Precision, Puteaux, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/147 (2006.01);
U.S. Cl.
CPC ...
Abstract

An iron-cobalt alloy containing in weight percentages: 10 to 22% of Co; traces to 2.5% of Si; traces to 2% of Al; 0.1 to 1% of Mn; traces to 0.0100% of C, a total of O, N and S content ranging between traces of 0.0070%; a total of Si, Al, Cr, Mo, V, Mn content ranging between 1.1 and 3.5%; a total of Cr, Mo and V content ranging between traces of 3%; a total of Ta and Nb content ranging between traces and 1%; and the rest being iron and impurities resulting from production wherein: 1.23×(Al+Mo) %+0.84 (Si+Cr+V) %−0.15×(Co %−15)≦2.1, and 14.5×(Al+Cr) %+12×(V+Mo) %+25×Si %≧21. The inventive alloy is useful for making electromagnetic actuator mobile cores.


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