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:
May. 16, 2017
Filed:
Dec. 06, 2013
Applicant:
Ksb Aktiengesellschaft, Frankenthal, DE;
Inventors:
Daniel Gontermann, Frankenthal, DE;
Jochen Schaab, Frankenthal, DE;
Joachim Schullerer, Frankenthal, DE;
Manfred Oesterle, Frankenthal, DE;
Assignee:
KSB Aktiengesellschaft, Frankenthal, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 1/04 (2006.01); H02P 6/08 (2016.01); H02P 21/00 (2016.01);
U.S. Cl.
CPC ...
H02P 1/04 (2013.01); H02P 6/08 (2013.01); H02P 21/00 (2013.01);
Abstract
The invention relates to a method for starting a variable-speed electric motor, wherein upon detection of locking of the motor shaft a positive torque is applied to the motor shaft, and wherein the positive torque is continuously modified with different frequencies to overcome the locking.