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. 22, 1977
Filed:
Dec. 22, 1975
Applicant:
Inventor:
Maurice Mazuir, Cluses, FR;
Assignee:
Carpano & Pons, , FR;
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310164 ; 310 / ; 310257 ;
Abstract
A synchronous motor comprises a rotor of permanently magnetized high coercivity material and a stator formed of two metal plates having projecting imbricated poles which are placed between an induction coil and the rotor. The air gaps between the ends of the poles of one plate and the other plate are at most equal to one tenth the length of said poles and up to a maximum value of 1.2 mm, so as to increase the self-induction of the coil hence enabling a reduction of its resistance and a saving in the cost of the wire of the coil.