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:
Sep. 08, 2026
Filed:
Jun. 03, 2022
Applicant:
Rtx Corporation, Farmington, CT (US);
Inventors:
Kerry Lynn Davis-Amendola, Wethersfield, CT (US);
John Harner, Florence, MA (US);
David J. Mathiau, Jr., East Hartford, CT (US);
Assignee:
RTX CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 5/18 (2006.01); B29C 44/18 (2006.01); B29L 31/08 (2006.01); F01D 5/14 (2006.01); F01D 5/28 (2006.01);
U.S. Cl.
CPC ...
F01D 5/18 (2013.01); B29C 44/18 (2013.01); F01D 5/147 (2013.01); F01D 5/282 (2013.01); B29L 2031/082 (2013.01); F05D 2220/36 (2013.01); F05D 2230/31 (2013.01); F05D 2300/612 (2013.01);
Abstract
A hollow fan blade comprises a sheath, an airfoil and a cover. The sheath forms a pressure side wall and has an exterior surface. The airfoil forms a suction side wall and has an exterior surface. There are a plurality of ribs extending between the pressure side wall and the suction side wall, where the plurality of ribs partition the hollow airfoil into one or more cavities. The cover is disposed in the one or more cavities to protect the plurality of ribs. The cavities are filled with a polymeric foam.