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. 14, 1984
Filed:
May. 09, 1983
Applicant:
Inventors:
Henry J Zylstra, Alburnette, IA (US);
Donald R Venzke, Cedar Rapids, IA (US);
Assignee:
Square D Company, Palatine, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361115 ; 340664 ; 340644 ; 34081529 ; 335 17 ; 335170 ;
Abstract
Trip indicator electromagnets of the permanent magnet type for use in a high amperage molded case circuit breaker under control of the long time delay and the short time delay or instantaneous circuits respectively for indicating the nature of a fault current and which can be reset by operating a viewing window that renders the indicator visible in response to armature movement.