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:
May. 08, 2007
Filed:
May. 13, 2003
Holger Dietz, Köln, DE;
Heinz-josef Dubbelfeld, Brühl, DE;
Jiri Melichar, Köln, DE;
Axel Persch, Köln, DE;
Mario Pietrangeli, Hürth, DE;
Ernst Schnacke, Köln, DE;
André Siegel, Linndau/Bodensee, DE;
Axel Veit, Pulheim, DE;
Holger Dietz, Köln, DE;
Heinz-Josef Dubbelfeld, Brühl, DE;
Jiri Melichar, Köln, DE;
Axel Persch, Köln, DE;
Mario Pietrangeli, Hürth, DE;
Ernst Schnacke, Köln, DE;
André Siegel, Linndau/Bodensee, DE;
Axel Veit, Pulheim, DE;
Oerlikon Leybold Vacuum GmbH, Cologne, DE;
Abstract
A refrigerator () has a housing (), a cylindrical working chamber (), a cylindrical displacing member (), a gap () which is located between the housing and the displacing member, a regenerator which is disposed inside the displacing member, and a device alternatingly supplying the working chamber with an effective high-pressure gas and an effective low-pressure gas. In order to overcome the disadvantages associated with gas streams occurring in the gap (), an additional regenerator (gap gas regenerator), () is assigned to the gap ().