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:
Nov. 17, 1998
Filed:
Aug. 06, 1997
Applicant:
Inventors:
Georges Couderchon, Sauvigny les Bois, FR;
Laurent Chaput, Sauvigny les Bois, FR;
Lucien Coutu, Sauvigny les Bois, FR;
Dominique Gautard, Varennes Vauzelles, FR;
Assignee:
Imphy S.A., Puteaux, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ; C22F / ;
U.S. Cl.
CPC ...
310 / ; 310 44 ; 148555 ; 148675 ;
Abstract
Stepper motor of the type comprising a rotor (1), a stator (2) and a coil (3) consisting of a magnetic core (4) and of a winding (5), in which the stator (2) consists of a soft magnetic alloy of the FeNiCr type, the chemical composition of which includes, by weight: 40%.ltoreq.Ni+Co.ltoreq.60%, 0%.ltoreq.Co.ltoreq.7%, 8%.ltoreq.Cr.ltoreq.13.5%, 8%.ltoreq.Cr+Mn+Si+Mo+Nb+V+W.ltoreq.13.5%, the remainder being iron and impurities resulting from the manufacture. Soft magnetic alloy.