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:
Aug. 12, 2008
Filed:
Jun. 17, 2004
Applicants:
Simon E Bray, Derby, GB;
Jonathan P Throssell, Derby, GB;
Inventors:
Simon E Bray, Derby, GB;
Jonathan P Throssell, Derby, GB;
Assignee:
Rolls-Royce plc, London, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 20/12 (2006.01); B23P 15/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of making an aerofoil blisk () comprising a plurality of aerofoil blades () joined to a disc () to extend radially outwardly therefrom includes the step of forming a blade member () having a stub () for joining to the disc (), the stub () having a taper ratio of less than 2. The stub () of the blade member () may be joined to the disc () by linear friction welding, and excess material may subsequently be machined from the blade member () to form the blade ().