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. 16, 1977
Filed:
May. 15, 1975
Applicant:
Inventor:
Siegfried Seidel, Amberg, DT;
Assignee:
Siemens Aktiengesellschaft, Munich, DT;
Primary Examiner:
Int. Cl.
CPC ...
H01F / ; H01F / ;
U.S. Cl.
CPC ...
335245 ; 335247 ;
Abstract
In an a-c magnet in which slots are provided which run transversely to the direction of the laminations in the surface of at least one pole and in which a shorting ring is arranged with its long sides in the slots, the slots are caused to have mortized edges so that each long side of the spring is pushed on both sides toward the bottom of the slot. The shorting ring is thus caused to reliably rest at the bottom of the slot, and loosening and vibration of the shorting ring are thereby prevented.