(12) United States Patent (10) Patent N0.2 US 8,402,742 B2 Roberge Et Al
US008402742B2 (12) United States Patent (10) Patent N0.2 US 8,402,742 B2 Roberge et al. (45) Date of Patent: Mar. 26, 2013 (54) GAS TURBINE ENGINE SYSTEMS 4,005,575 A 2/1977 Scott et a1. INVOLVING TIP FANS 4,021,142 A 5/1977 Violette 4,043,121 A 8/1977 Thomas et al. (75) Inventors: Gary D. Roberge, Tolland, CT (US); i E2358 Gabriel L- 5119i“, Glastonbury, CT (Us) 4,964,844 A 10/1990 Bagnall 5,010,729 A 4/1991 Adamson et al. (73) Assignee: United Technologies Corporation, 5,182,905 A 2/1993 Stransky et 81. Hartford CT (Us) 5,388,964 A * 2/1995 Ciokajlo et al. ........... .. 60/226.1 ’ 5,404,713 A 4/1995 Johnson ( * ) Notice: Subject' to any disclaimer,~ the term of this 2 223L135? al' patent 1s extended or adjusted under 35 6,209,311 B1 4/2001 11011 et a1, U.S.C. 154(b) by 0 days. 6,223,616 B1 5/2001 Sheridan 6,339,927 B1 1/2002 DiPietro, Jr. 6,381,948 B1 5/2002 Klingels (21) Appl' NO" 13/452368 H2032 H * 7/2002 DiPietro, Jr. ............. .. 60/39.162 . _ 6,471,482 B2 10/2002 Montgomery et al. (22) F1169 APr- 201 2012 6,901,739 B2 6/2005 Christopherson 7,185,484 B2 3/2007 Grif?n, III et al. (65) Prior Publication Data 7,246,484 B2 7/2007 Gif?n, III et a1. 7,591,754 B2 9/2009 Duong et al. US 2013/0028712 A1 Jan 31, 2013 7,824,305 B2 11/2010 Duong et al.
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