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:
Jan. 25, 1983
Filed:
Mar. 31, 1980
Applicant:
Inventor:
Lucien Siffroi, Versailles, FR;
Assignee:
La Telemecanique Electrique, , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
335174 ; 335258 ;
Abstract
An electromagnet has a movable core which is locked in rest position by magnetic effect. The movable core cooperates with portions of the magnetic field structure in such a manner as to form three sets of polar surfaces and gaps, of which one situated between the other two, can become saturated when the energizing flux of the winding achieves a certain threshold level. The device is particularly adapted to the actuation of circuit-breakers.