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. 17, 2009
Filed:
Mar. 22, 2007
Applicant:
Oliver Laing, Stuttgart, DE;
Inventor:
Oliver Laing, Stuttgart, DE;
Assignee:
ITT Manufacturing Enterprises, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
To provide a solar circulation pump for connection to a photovoltaic panel device, comprising an electric motor which is electronically commutated and has a control device for supplying a periodic commutation signal, it is proposed that the control device be so configured that the commutation signal is varied with respect to the ratio of switch-on time to switch-off time.