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. 30, 2006
Filed:
Apr. 27, 2005
Applicant:
Thomas Hannewald, Griesheim, DE;
Inventor:
Thomas Hannewald, Griesheim, DE;
Assignee:
Siemens AG, München, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16K 25/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a valve which includes a housing made from aluminum and a valve seat made from aluminum, for a flap which is mounted such as to rotate on a drive shaft and a peripheral piston seal. The valve seat includes a metallic coating on the surface thereof facing the flap, the layer thickness of which lies in the range from 5 to 30 m and has a temperature resistance in the range from 500 to 800 Celsius. The invention further relates to a use of said valve.