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. 28, 1990
Filed:
Mar. 08, 1989
Applicant:
Inventor:
Michel Perret, Tramole, FR;
Assignee:
Societe Anonyme dite: Alsthom, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200 / ; 188282 ; 267127 ; 267226 ; 200 34 ; 200 / ; 335 62 ;
Abstract
The invention relates to a control device for a circuit breaker. The circuit breaker is controlled mechanically by an engagement spring (8), by a disengagement spring (2), and by a hydraulic transmission for transmitting a portion of the energy in the engagement spring to the disengagement spring. The device has circular symmetry about a longitudinal axis.