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:
Sep. 25, 1984
Filed:
Sep. 30, 1982
Applicant:
Inventors:
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
335245 ; 335281 ;
Abstract
An electromagnet system for electromagnetic switchgear, the system having movable and stationary magnet portions, the stationary magnet portion having a pole surface wherein slots are provided for inserting a short-circuit ring. The slots are arranged so that the short-circuit ring may be substituted with a pole plate which extends beyond the pole surface on all sides. The pole plate has an opening which corresponds to the size of the pole surface. The opening is provided with two straps thereacross which can be inserted into the slots. This arrangement permits operation of the electromagnet system in response to AC, as well as DC, excitation.