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:
Aug. 12, 1986
Filed:
Mar. 20, 1985
Applicant:
Inventors:
Pierre Lemarquand, Dijon, FR;
Luc Moreau, Dijon, FR;
Assignee:
La Telemecanique Electrique, , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
335261 ; 335279 ;
Abstract
A high speed current maximum tripping device, comprising a fixed core and a mobile core with complementary shapes and disposed in the same plane while defining an air gap therebetween. The fixed and mobile cores are obtained by flat stamping and have complementary profiles of a generally curvilinear shape with sides whose slope with respect to the main axis of the projecting core increases progressively from the nose towards the body.