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US Patent 9169731 Airfoil cover system

Patent 9169731 was granted and assigned to United Technologies on October, 2015 by the United States Patent and Trademark Office.

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Patent
Patent
1

Patent attributes

Current Assignee
United Technologies
United Technologies
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
91697311
Date of Patent
October 27, 2015
1
Patent Application Number
134885561
Date Filed
June 5, 2012
1
Patent Citations Received
‌
US Patent 11852035 Multi-cover gas turbine engine component
2
‌
US Patent 11668316 Rotor formed of multiple metals
3
Patent Primary Examiner
‌
Edward Look
1
Patent abstract

An example airfoil for a gas turbine engine includes a body having a first surface extending from a first edge to a second edge and a cavity disposed in the body. A first cover is at least partially disposed within the cavity. The first cover includes a first portion cooperates with a corresponding second portion. A second cover covers the first cover and forms at least a portion of the first surface with the body. The first cover is disposed between the body and the second cover. The first cover and the second cover have a different coefficient of thermal expansion than the body.

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