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. 16, 1979
Filed:
Apr. 18, 1978
Applicant:
Inventors:
Barry W Lings, Spondon, GB;
Anthony G Gale, Wollaton, GB;
Assignee:
Rolls-Royce Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
416 / ; 416 / ;
Abstract
A gas turbine rotor blade has a root portion and a hollow aerofoil supported from the root. Within the hollow aerofoil is mounted an air entry tube which has a closed end at or adjacent the tip of the aerofoil, the tube being sealed to the hollow blade interior at or adjacent the closed end so as to close off the otherwise open tip of the hollow aerofoil.