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:
Dec. 14, 2021
Filed:
Jan. 15, 2018
United Technologies Corporation, Farmington, CT (US);
Michael Leslie Clyde Papple, Verdun, CA;
David A. Niezelski, Manchester, CT (US);
Daniel Lecuyer, St. Bruno-de-Montarville, CA;
XingYun Haggard, Jacksonville, FL (US);
Domenico Di Florio, St Lazare, CA;
Francois Caron, Longueuil, CA;
John R. Battye, Lebanon, CT (US);
Panagiota Tsifourdaris, Montreal, CA;
Ghislain Plante, Verdun, CA;
Timothy J. Jennings, West Hartford, CT (US);
Rene Paquet, Montreal, CA;
Raytheon Technologies Corporation, Farmington, CT (US);
Abstract
A turbomachine airfoil element comprises an airfoil having: an inboard end; an outboard end; a leading edge; a trailing edge; a pressure side; and a suction side. A span between the inboard end and the outboard end is 1.75-2.20 inches. A chord length at 50% span is 1.05-1.35 inches. At least two of: a first mode resonance frequency is 2400±10% Hz; a second mode resonance frequency is 4950±10% Hz; a third mode resonance frequency is 7800±10% Hz; a fourth mode resonance frequency is 8700±10% Hz; and a fifth mode resonance frequency is 12500±10% Hz.