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:
Jul. 09, 2013
Filed:
Nov. 17, 2008
Applicants:
Markus Gutmann, March, DE;
Arno Karwath, Deisslingen, DE;
Thomas Dufner, Schonach, DE;
Inventors:
Assignee:
EBM-Papst St. Georgen GmbH & Co. KG, St. Georben, DE;
Primary Examiner:
Int. Cl.
CPC ...
H02P 7/29 (2006.01);
U.S. Cl.
CPC ...
H02P 7/29 (2013.01);
Abstract
A fan arrangement () has a fan () driven by an electric motor (). It further has an apparatus for continuously detecting an actual electrical value associated with the electric motor () during operation, an input apparatus for inputting a desired electrical value for the operation of said electric motor, a comparison apparatus () for comparing said electrical value with the actual electrical value, and a controller which regulates said electrical value by pulse width modulation ().