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. 08, 2011
Filed:
Apr. 30, 2007
Richard A. Lukaszewski, New Berlin, WI (US);
John R. Brubaker, Milwaukee, WI (US);
Paul J. Grosskreuz, West Bend, WI (US);
Neil Gollhardt, Fox Point, WI (US);
Lawrence D. Radosevich, Muskego, WI (US);
Bruce W. Weiss, Milwaukee, WI (US);
Richard A. Lukaszewski, New Berlin, WI (US);
John R. Brubaker, Milwaukee, WI (US);
Paul J. Grosskreuz, West Bend, WI (US);
Neil Gollhardt, Fox Point, WI (US);
Lawrence D. Radosevich, Muskego, WI (US);
Bruce W. Weiss, Milwaukee, WI (US);
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Abstract
A technique is disclosed for cooling resistive elements, such as brake resistors used in motor drives, as well as other resistors. A phase change heat spreader is thermally coupled to the resistive element and a continuous phase change cycle takes place in the heat spreader to extract heat from the resistive element. The element and heat spreader may be packaged as a modular unit or may be integrated into a system.