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:
Nov. 25, 2025
Filed:
Apr. 20, 2021
Isabellenhütte Heusler Gmbh & Co. KG, Dillenburg, DE;
Jan Marien, Herborn, DE;
Benedikt Kramm, Wettenberg, DE;
ISABELLENHÜTTE HEUSLER GMBH & CO. KG., Dillenburg, DE;
Abstract
The invention relates to a current measuring apparatus for redundant measurement of an electric current (I) with a low-resistance current measuring resistor () for current measurement according to the four-lead technique and with a magnetic field sensor (). The invention provides that the electric current (I) to be measured in the current measuring apparatus is divided into a main current path with a main current (I) and a secondary current path with a secondary current (I), the main current path and the secondary current path together forming a parallel circuit. The low-resistance current measuring resistor () is arranged in the main current path and has the main current (I) flowing through it, while the magnetic field sensor () is arranged in the secondary current path and measures the secondary current (I).