(12) United States Patent (10) Patent No.: US 8,869,504 B1 Schwarz Et Al
USOO88695 04B1 (12) United States Patent (10) Patent No.: US 8,869,504 B1 Schwarz et al. (45) Date of Patent: Oct. 28, 2014 (54) GEAREDTURBOFAN ENGINE GEARBOX 5.431,539 A 7/1995 Carvalho ARRANGEMENT 5,443,365 A * 8/1995 Ingling et al. ............. 416, 193A 5,778,659 A 7/1998 Duesler et al. 6,464,401 B1 10/2002 Allard (71) Applicant: United Technologies Corporation, 7,144.221 B2 * 12/2006 Giffin ............................ 416,189 Hartford, CT (US) 8,137,070 B2 * 3/2012 Van Houten ... 416,189 2006.0024162 A1* 2, 2006 Giffin .......... ... 415,208.3 (72) Inventors: Frederick M. Schwarz, Glastonbury, 2007/015.1258 A1* 7/2007 Gaines et al. ................... 60,792 CT (US); William G. Sheridan, 2008/00987.17 A1* 5, 2008 Orlando et al. .... ... 60,226.1 Southington, CT (US) 2010/0218478 A1* 9/2010 Merry et al. .................... 60,205 glon, 2011/0056208 A1 3/2011 Norris et al. .................... 6Of772 2011/O123326 A1 5/2011 DiBenedetto et al. (73) Assignee: United Technologies Corporation, 2012/0110979 A1* 5, 2012 Rosenkrans et al. ......... 60,226.1 Hartford, CT (US) 2012fO251306 A1* 10/2012 Reinhardt et al. ......... 415, 1821 2012fO263579 A1* 10, 2012 Otto et al. .......... ... 415,124.2 (*) Notice: Subject to any disclaimer, the term of this 2012/0291449 A1* 11/2012 Adams et al. ................... 60,793 2012/03 15130 A1 12/2012 Hasel et al. patent is extended or adjusted under 35 2013, OO25257 A1 1/2013 Suciu et all U.S.C. 154(b) by 0 days. 2013/0025258 A1* 1/2013 Merry et al.
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