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:
Sep. 08, 1987
Filed:
Aug. 11, 1986
Applicant:
Inventor:
Gerard Koehler, Ville d'Avray, FR;
Assignee:
La Telemecanique Electrique, Nanterre Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
335259 ; 335261 ; 335265 ;
Abstract
A magnetic core (3) surrounded by a coil (1, 2) bears a first pole shoe (4) forming a large-surface air-gap with two zones (5a, 6a) of two armatures (5, 6) fixed to one another and disposed magnetically in parallel. The core (3) is continued beyond the coil and at this end bears a second pole shoe (9) which together with two other zones (5c, 6c) of the armatures forms a second large-surface air-gap disposed magnetically in series with the first.