Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Between blade edge and static part
Reexamination Certificate
2005-07-22
2010-10-12
Verdier, Christopher (Department: 3745)
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Between blade edge and static part
C415S009000, C415S173400, C416S203000, C416S21900R, C416S19300A
Reexamination Certificate
active
07811053
ABSTRACT:
A fan rotor capable of avoiding coincidence will include a fan hub comprising one or more slots each designed to receive a fan blade; and one or more fan blades disposed within the slots. One or more slots will comprise an RZ′baseline and have one or more second fan blades disposed therein while another set of slots will have an RZbaseline having one or more first fan blades disposed therein. The tips of the second fan blades will be positioned at a distance farther from the fan hub than the tips of the first fan blades disposed, which when implemented in a turbofan engine will avoid coincidence occurrences.
REFERENCES:
patent: 2432315 (1947-12-01), Howard
patent: 2781998 (1957-02-01), Barr
patent: 2948506 (1960-08-01), Glasser et al.
patent: 3575530 (1971-04-01), Hall
patent: 3692429 (1972-09-01), Redding
patent: 4512718 (1985-04-01), Stargardter
patent: 4621979 (1986-11-01), Zipps et al.
patent: 4688992 (1987-08-01), Kirkpatrick et al.
patent: 5160242 (1992-11-01), Brown
patent: 6042388 (2000-03-01), Tustaniwskyj et al.
patent: 6338609 (2002-01-01), Decker et al.
patent: 6648602 (2003-11-01), Horng et al.
patent: 7048507 (2006-05-01), Wettstein et al.
patent: 2008/0134504 (2008-06-01), Schoenenborn
patent: 4439726 (1996-05-01), None
patent: 2153447 (1985-08-01), None
patent: 2225388 (1990-05-01), None
patent: 54-32808 (1979-03-01), None
European Search Report for EP 06253845.9, dated Nov. 28, 2008.
Balamucki Stanley J.
Malmborg Eric W.
Bachman & LaPointe P.C.
United Technologies Corporation
Verdier Christopher
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