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:
Dec. 07, 1999
Filed:
Dec. 03, 1998
Applicant:
Inventors:
Farshad Ghasripoor, Matzingen, CH;
Richard K Schmid, Winterthur, CH;
Mitchell R Dorfman, Smithtown, NY (US);
Assignee:
Sulzer Metco (US) Inc., Westbury, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D / ; F01D / ; B64C / ; B64C / ;
U.S. Cl.
CPC ...
4151734 ; 4151734 ; 4151744 ; 4162 / ; 4162 / ; 428404 ; 428698 ; 427450 ; 427452 ;
Abstract
A granular composition is applied to tips of rotor blades utilized in a gas turbine engine wherein the blade tips rub against an abradable ceramic layer. Individual grains each have a core of silicon carbide and a layer of aluminum nitride on the core. A layer of a cladding metal may be bonded to the aluminum nitride. The composition also may include particles of cubic boron nitride and/or particles of metal alloy blended with the grains of silicon carbide.