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:
Nov. 30, 1999
Filed:
Dec. 11, 1997
Applicant:
Inventors:
Guy Bouchard, Mont St. Hilaire, CA;
Hugues Rhonald Brunet, St. Bruno de Montarville, CA;
Assignee:
Pratt & Whitney Canada Inc., Longueuil, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
4161 / ; 4162 / ;
Abstract
A cover plate for a bladed rotor in a turbine section of a gas turbine engine which comprises an annular plate segment comprising a plurality of spaced-apart seats with each seat coincident with a rivet. The rivets are the rivets used for anchoring the root of the blade in the disc, and the seats and the covers have frusto-conical surfaces having an axis which is the axis of the rivet.