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:
Apr. 16, 2002
Filed:
Jan. 04, 2000
Applicant:
Inventors:
Jörg Roth-Stielow, Bretten, DE;
Josef Schmidt, Graben-Neudorf, DE;
Assignee:
Sew-Eurodrive GmbH & Co., Bruchsal, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 3/22 ;
U.S. Cl.
CPC ...
H02P 3/22 ;
Abstract
Conventionally converter-controlled electric motors are allowed to operate in generational mode during braking and to convert the electrical energy so produced into heat. Such motors may also comprise electromagnetically actuated mechanical brakes. In the present invention it is proposed to supply the electrical energy produced by the motor when in a generational mode to an excitation coil of the brake and there store it temporarily as magnetic energy or convert it into heat.