Assembly for providing flexure to blade system

Details Assembly for providing flexure to blade system Assembly for providing flexure to blade system

2006-01-24

2010-12-07

Nguyen, Hoang M (Department: 3748)

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Nonmetallic resilient mounting

C416S135000, C416S140000, C416S141000

Reexamination Certificate

active

07845909

ABSTRACT:
An assembly for providing flexure to a blade of a rotary blade system includes an upper support plate having an upper curved surface, a lower support plate having a lower curved surface, and a yoke positioned therebetween. At least one of the upper and lower yoke surfaces has a layer of cushioning material positioned thereon and secured thereto. An alternate embodiment includes an assembly for providing flexure to a blade of a rotary blade system, including, an upper support plate having an upper curved surface, a lower support plate having a lower curved surface, and a yoke positioned therebetween and directly contacting the support plates wherein one of the curved surfaces is a non-circular arc that does not form part of the circumference of a circle. Another alternate embodiment includes a similar assembly having a twist-shank type of yoke for providing rotation of attached blades about their respective pitch axes.

REFERENCES:
patent: 3669566 (1972-06-01), Bourquardez et al.
patent: 3999887 (1976-12-01), McGuire
patent: 4008980 (1977-02-01), Nochren et al.
patent: 4021141 (1977-05-01), Watson
patent: 4047839 (1977-09-01), Ferris et al.
patent: 4093400 (1978-06-01), Rybicki
patent: 4182597 (1980-01-01), Derschmidt
patent: 4201515 (1980-05-01), Derschmidt et al.
patent: 4203709 (1980-05-01), Watson
patent: 4222709 (1980-09-01), Mouille
patent: 4227857 (1980-10-01), Reyes
patent: 4227859 (1980-10-01), Gouzien et al.
patent: 4273511 (1981-06-01), Mouille et al.
patent: 4297080 (1981-10-01), Krauss et al.
patent: 4306837 (1981-12-01), Brogdon et al.
patent: 4332525 (1982-06-01), Cheney, Jr.
patent: 4344739 (1982-08-01), Derschmidt et al.
patent: 4352631 (1982-10-01), Buchs et al.
patent: 4369018 (1983-01-01), Brunsch et al.
patent: 4427340 (1984-01-01), Metzger et al.
patent: 4430045 (1984-02-01), Cresap
patent: 4455123 (1984-06-01), Sanders et al.
patent: 4564336 (1986-01-01), Sampatacos
patent: 4650401 (1987-03-01), Yao et al.
patent: 4676720 (1987-06-01), Niwa et al.
patent: 5059094 (1991-10-01), Robinson et al.
patent: 5110259 (1992-05-01), Robinson
patent: 5211538 (1993-05-01), Seghal et al.
patent: 5358381 (1994-10-01), Covington et al.
patent: 5820344 (1998-10-01), Hamilton et al.
patent: 6375425 (2002-04-01), Lee et al.
patent: 6695106 (2004-02-01), Smith et al.
patent: 6708921 (2004-03-01), Sims et al.
patent: 7665969 (2010-02-01), Stamps et al.
Chinese Office Action from Application No. 200680002997.8.
Amendment dated Sep. 2, 2008 from Application No. 200680002997.8.
Chinese Notice of Allowance from Application No. 200680002997.8.
Chines Patent No. 101107164A dated Aug. 26, 2009 from Application No. 200680002997.8.
Canadian Office Action dated 20100121 from Application No. 2,592,644.
Int'l Search Report and Written Opinion of ISA in PCT/US2006/002413, Oct. 16, 2006, Bell Helicopter Textron, et al.

Affiliated with

Also associated with

Rating

Assembly for providing flexure to blade system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Assembly for providing flexure to blade system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Assembly for providing flexure to blade system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4174553