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. 25, 2002
Filed:
May. 15, 2001
Applicant:
Inventors:
Peter Allford, Bristol, GB;
Mark J. Houle, Bristol, GB;
Assignee:
Rolls-Royce, PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 2/504 ;
U.S. Cl.
CPC ...
F01D 2/504 ;
Abstract
A gas turbine engine casing includes a tip treatment ring which comprises end supports which support tip treatment bars . Each tip treatment bar is mounted at its ends within the respective end supports by damping elements , which isolate the bar from the end supports . The elements damp vibrations induced in the tip treatment bars so inhibiting the initiation of high cycle fatigue cracking.