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:
Jul. 24, 1990
Filed:
Jun. 12, 1989
Applicant:
Inventors:
Jean-Luc Mertz, Grenoble, FR;
Hubert Guerin, Meylan, FR;
Michel Perrot, Quaix en Chartreuse, FR;
Patrick De Robertis, Vizille, FR;
Assignee:
Merlin Gerin, , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200151 ; 2001 / ; 2001 / ;
Abstract
A current limiter comprises an extinguishing chamber 16 of small volume, in which there are housed a pair of contacts 28, 30 and an insulating shield 40, capable of moving to an active position inserted between the contacts 28, 30, and of subdividing the chamber 16 into two parts each of which contains one of the contacts 28, 30. The movement of the insulating shield 40 to the inserted position between the contacts 28, 30 is favored by the action of a piston 48 subjected to the pressure prevailing in the extinguishing chamber 16.