Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Concave surface
Reexamination Certificate
2011-06-28
2011-06-28
Look, Edward (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Concave surface
Reexamination Certificate
active
07967571
ABSTRACT:
A rotor airfoil having a leading edge extending from a root to a tip, an inner span region and an outer span region the leading edge having a sweep angle profile such that the sweep angle increases from the root a first height location at a first rate of change of sweep angle that is substantially constant and thereafter increases at a second rate of change of sweep angle that is substantially constant.
REFERENCES:
patent: 2663493 (1953-12-01), Keast
patent: 2746672 (1956-05-01), Doll, Jr. et al.
patent: 4131387 (1978-12-01), Kazin et al.
patent: 4741667 (1988-05-01), Price et al.
patent: 5088892 (1992-02-01), Weingold et al.
patent: 5167489 (1992-12-01), Wadia et al.
patent: 5244533 (1993-09-01), Kimura et al.
patent: 5342170 (1994-08-01), Elvekjaer et al.
patent: 5642985 (1997-07-01), Spear et al.
patent: 6071077 (2000-06-01), Rowlands
patent: 6195983 (2001-03-01), Wadia et al.
patent: 6220012 (2001-04-01), Hauser et al.
patent: 6290465 (2001-09-01), Lammas et al.
patent: 6299412 (2001-10-01), Wood et al.
patent: 6312219 (2001-11-01), Wood et al.
patent: 6328533 (2001-12-01), Decker et al.
patent: 6331100 (2001-12-01), Liu et al.
patent: 6345955 (2002-02-01), Heffron et al.
patent: 6428281 (2002-08-01), Botrel et al.
patent: 6508630 (2003-01-01), Liu et al.
patent: RE38040 (2003-03-01), Spear et al.
patent: 7121792 (2006-10-01), Fessou et al.
patent: 7204676 (2007-04-01), Dutton et al.
patent: 2002/0141863 (2002-10-01), Liu et al.
patent: 2004/0091353 (2004-05-01), Shahpar et al.
patent: 2005/0031454 (2005-02-01), Doloresco et al.
patent: 2006/0257238 (2006-11-01), Fiala
patent: 2008/0131271 (2008-06-01), Wood et al.
patent: 2008/0131272 (2008-06-01), Wood et al.
patent: 1903642 (1970-08-01), None
patent: 0251978 (1988-01-01), None
patent: 0441097 (1991-08-01), None
patent: 0774567 (1997-05-01), None
patent: 0801230 (1997-10-01), None
patent: 1505302 (2005-02-01), None
patent: 2151310 (1985-07-01), None
EPO Search Report and Written Opinion from corresponding application, EP 07121584.2, Feb. 9, 2010.
EPO Search Report and Written Opinion from corresponding application, EP 07121584.2, Apr. 29, 2010.
EPO Search Report and Written Opinion from corresponding application, EP 0712585.9, Feb. 9, 2010.
EPO Search Report and Written Opinion from corresponding application, EP 0712585.9, Apr. 28, 2010.
EPO Search Report and Written Opinion from corresponding application, EP 0712586.7, Feb. 9, 2010.
EPO Search Report and Written Opinion from corresponding application, EP 0712586.7, Apr. 28, 2010.
Dailey Lyle D.
Falk Eric Andrew
Wood Peter John
General Electric Company
Global Patent Operation
Look Edward
Younger Sean J
LandOfFree
Advanced booster rotor blade does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Advanced booster rotor blade, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Advanced booster rotor blade will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2698367