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:
Mar. 27, 1984
Filed:
Apr. 22, 1981
Applicant:
Inventors:
George Pask, Stanton-by-Bridge, GB;
Howard J Golton, Allestree, GB;
Assignee:
Rolls-Royce Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277236 ; 277 88 ;
Abstract
An annular seal for a gas turbine engine comprises a stacked plurality of Belleville washers with at least some of their abutting peripheries held together by U-section rings. If only those peripheries pointing toward a lower pressure area are retained together, gas pressure will hold the other peripheries together. Because the U-section rings do not prevent the washers from changing the angle of their section, relatively large axial motion between the sealed members may be tolerated.