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:
Jun. 02, 1987
Filed:
Jun. 22, 1981
Applicant:
Inventor:
Terence R Pellow, Watford, GB;
Assignee:
Rolls-Royce plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
415174 ; 415197 ;
Abstract
An axial flow turbine comprises an annular array of rotatable turbine blades which are surrounded by a shroud ring. An open honeycomb structure is attached to the shroud ring, the open cells of which honeycomb structure contain an abradable material. The honeycomb structure is totally covered by an impervious coating which contains a ceramic material. The impervious coating resists oxidation and/or erosion of the abradable material.