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:
Aug. 09, 2005
Filed:
Aug. 12, 2003
Roland Cäsar, Stuttgart, DE;
Jan Gärtner, Stuttgart, DE;
Klaus-dieter Mörgenthaler, Stuttgart, DE;
Gunnar Rausch, Wildberg, DE;
Jürgen Wertenbach, Fellbach, DE;
Roland Cäsar, Stuttgart, DE;
Jan Gärtner, Stuttgart, DE;
Klaus-Dieter Mörgenthaler, Stuttgart, DE;
Gunnar Rausch, Wildberg, DE;
Jürgen Wertenbach, Fellbach, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
In a piston for a compressor, the piston comprises a stem by which the piston may be guided in the housing in an axially displaceable manner, and a force introducing section where an outer drive force can be introduced into the piston. The piston head, the piston skirt and the force introducing section are successively arranged in the direction of the piston axis. The piston head, the piston skirt and the force introducing section are produced as a single element of graphite or a synthetic material, and the piston skirt comprises a solid strut structure and a guide section, the cross-sectional area of the strut structure being smaller than the surface of the piston head. The piston consists of a non-organic, non-metallic material having an average thermal expansion of less than 7×10/° C. in the temperature range of 0° C. to 200° C.