A cooling apparatus for articles operated at low temperatures comprises a refrigerating machine and a cold head provided in the refrigerating machine. A first Peltier element is thermally contacted and fixed with the cold head, and a second Peltier element is thermally contacted and fixed with the cold...http://www.google.es/patents/US7571616?utm_source=gb-gplus-sharePatente US7571616 - Cooling apparatus for articles operated at low temperature
Cooling apparatus for articles operated at low temperature
