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:
Mar. 21, 2023
Filed:
Dec. 16, 2020
Applicant:
Metabowerke Gmbh, Neurtingen, DE;
Inventor:
Benjamin Prescher, Munich, DE;
Assignee:
Metabowerke Gmb H, Neurtingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 7/14 (2006.01); H02P 21/16 (2016.01); H02P 21/22 (2016.01); B25F 5/00 (2006.01); G01K 1/024 (2021.01); G01K 3/00 (2006.01); G01K 3/08 (2006.01); G01R 27/08 (2006.01); G01R 31/34 (2020.01);
U.S. Cl.
CPC ...
H02P 21/16 (2016.02); B25F 5/00 (2013.01); G01K 1/024 (2013.01); G01K 3/005 (2013.01); G01K 3/08 (2013.01); G01R 27/08 (2013.01); G01R 31/346 (2013.01); H02P 21/22 (2016.02);
Abstract
The invention relates to a method for operating a power tool, according to which a measuring device determines a winding resistance (R) of a winding of an electric motor of the power tool. A test signal source applies a test signal (i) to the winding during operation of the electric motor, a measuring unit records at least one measured value (U, i) as a reaction of the winding to the test signal (i), and a control device determines the winding resistance (R) while taking into consideration the measured value (U, i).