Rotorcraft rotors having twistable blades

Details Rotorcraft rotors having twistable blades Rotorcraft rotors having twistable blades

2006-10-31

2009-10-20

Verdier, Christopher (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

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

Nonmetallic resilient mounting

C416S141000, C416S203000, C411S088000, C411S092000, C411S119000, C411S120000

Reexamination Certificate

active

07604460

ABSTRACT:
A rotorcraft rotor includes a hub , a first blade having a first twistable structure secured to the hub by a first bolt and a first ring or washer , a second blade having a second twistable structure secured to the hub by a second bolt and a second ring or washer. The rotor includes a stop structure for preventing each ring or washer from turning relative to the hub or relative to the corresponding twistable structure.

REFERENCES:
patent: 175427 (1876-03-01), Cobb
patent: 492722 (1893-02-01), Gibson
patent: 595775 (1897-12-01), Herrin
patent: 625122 (1899-05-01), Price
patent: 630117 (1899-08-01), Saur
patent: 856246 (1907-06-01), Gamon
patent: 2372416 (1945-03-01), Fairhurst
patent: 2469441 (1949-05-01), Pitisci
patent: 4626172 (1986-12-01), Mouile et al.
patent: 4740124 (1988-04-01), Pearson et al.
patent: 5286167 (1994-02-01), Byrnes et al.
patent: 5383767 (1995-01-01), Aubry
patent: 5542818 (1996-08-01), Monvallier et al.
patent: 2005/0201848 (2005-09-01), Reilly
patent: 1 531 536 (1968-07-01), None

Affiliated with

Also associated with

Rating

Rotorcraft rotors having twistable blades does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rotorcraft rotors having twistable blades, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotorcraft rotors having twistable blades will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4125833