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:
Sep. 14, 1999
Filed:
Mar. 05, 1998
Walter Krenkel, Renningen, DE;
Richard Kochendoerfer, Stuttgart, DE;
Deutsches Zentrum fur Luft-und Raumfahrt EV, Bonn, DE;
Abstract
A device is disclosed for forwarding a medium in the form of a gas, liquid, or loose particles. The medium can contain additives and/or contaminants in an aggregate state other than that of the medium itself. The device's major components are form-fit and force-fit together and comprise at least one supporting component along with blade-like components fastened to it. The supporting component is, or the supporting components are, made of a fiber-filled composite. The device is in particular an impeller for a pump, turbine, or similar mechanism. It is characterized in that the supporting component is, or the supporting components are, made of a lattice of essentially continuous fibers of carbon and/or ceramic and of a matrix that contains carbon and in that the fibers are sheathed with silicon carbide resulting from the infiltration of liquid silicon and from its reaction essentially with the carbon in the matrix.