Blade fold restraint system

Details Blade fold restraint system Blade fold restraint system

1979-05-02

1981-08-18

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

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

Nonmetallic resilient mounting

416141, 416143, B64C 1128, B64C 2738, B64C 2750

Patent

active

042843871

ABSTRACT:
In a fully articulated helicopter rotor head, utilizing an elastomeric bearing to support each rotor blade and react centrifugal flight loads, a blade restraint, effective in three axes is provided for use during blade folding for aircraft stowage purposes. The restraint allows the blade to be folded through a predetermined fold plane, and held there while preventing or minimizing deflection of the elastomeric bearing.

REFERENCES:
patent: 2405777 (1946-08-01), Buivid
patent: 2549886 (1951-04-01), Buivid
patent: 2925130 (1960-02-01), Buivid
patent: 3153455 (1964-10-01), Mosinskis
patent: 3247907 (1966-04-01), Mosinskis
patent: 3282350 (1966-11-01), Kisovec
patent: 3759631 (1973-09-01), Rybicki
patent: 3778189 (1973-12-01), Ferris
patent: 3853426 (1974-12-01), Rybicki
patent: 4028001 (1977-06-01), Watson

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