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:
Jan. 05, 1993
Filed:
Jan. 18, 1991
Applicant:
Inventors:
Manfred Schwendtner, Schwarzenbruck, DE;
Gunter Steinmuller, Nurnberg, DE;
Wolfgang Dohmstreich, Lauf, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G01R / ;
U.S. Cl.
CPC ...
324127 ; 3241 / ; 336178 ;
Abstract
The current transformer of an electronic house-service meter has a ferromagnetic core which, except for an air gap, is closed. A measuring coil is inserted in the air gap and is fastened, and dimensioned so that it lies within the cross sectional area of the core.