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. 01, 2011
Filed:
Oct. 26, 2009
Robert D. Shull, Boyds, MD (US);
Alexander J. Shapiro, Rockville, MD (US);
Virgil Provenzano, Gaithersburg, MD (US);
Robert D. Shull, Boyds, MD (US);
Alexander J. Shapiro, Rockville, MD (US);
Virgil Provenzano, Gaithersburg, MD (US);
Abstract
A GdGeSirefrigerant compound is doped or alloyed with an effective amount of silicide-forming metal element such that the magnetic hysteresis losses in the doped GdGeSicompound are substantially reduced in comparison to the hysteresis losses of the undoped GdGeSicompound. The hysteresis losses can be nearly eliminated by doping the GdGeSicompound with iron, cobalt, manganese, copper, or gallium. The effective refrigeration capacities of the doped GdGeSicompound are significantly higher than for the undoped GdGeSicompound.