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. 10, 2007
Filed:
Oct. 01, 2004
Orest G. Symko, Salt Lake City, UT (US);
Ehab Abdel-rahman, Cairo, EG;
Orest G. Symko, Salt Lake City, UT (US);
Ehab Abdel-Rahman, Cairo, EG;
University of Utah Research Foundation, Salt Lake City, UT (US);
Abstract
A thermoacoustic refrigerator having a relatively small size which utilizes one or more piezoelectric drivers to generate high frequency sound within a resonator at a frequency of between about 4000 Hz and ultrasonic frequencies. The interaction of the high frequency sound with one or more stacks create a temperature gradient across the stack which is conducted through a pair of heat exchangers located on opposite sides of each stack. The resonator has an asymmetrical, round configuration which enhances the cooling power of the thermoacoustic refrigerator.