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:
Oct. 07, 2014
Filed:
Mar. 22, 2011
Applicants:
Stephen C. Diamond, Derby, GB;
Caner H. Helvaci, Derby, GB;
Roderick M. Townes, Derby, GB;
Ian Tibbott, Litchfield, GB;
Dougal R. Jackson, Stanton-by-Bridge, GB;
Inventors:
Stephen C. Diamond, Derby, GB;
Caner H. Helvaci, Derby, GB;
Roderick M. Townes, Derby, GB;
Ian Tibbott, Litchfield, GB;
Dougal R. Jackson, Stanton-by-Bridge, GB;
Assignee:
Rolls-Royce PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 11/08 (2006.01); F01D 5/20 (2006.01);
U.S. Cl.
CPC ...
F01D 5/20 (2013.01);
Abstract
A rotor bladefor a gas turbine engine has an aerofoil portionfrom a rootto a tip. In use, combustion gas may leak over the tipfrom the pressure faceto the suction face. A gutterextends across the tipto entrain any over tip leakage gap. The floor of the gutter defines an increased depth portionat the exit end of the gutter