Helicopter blade

Details Helicopter blade Helicopter blade

1991-04-05

1993-01-26

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

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

Nonmetallic resilient mounting

416141, 416226, 416230, B64C 2748

Patent

active

051818299

ABSTRACT:
A helicopter blade having a connecting device made of composite synthetic material for connecting it to the hub of a rotor via a spherical joint comprising a rod housed inside a tubular portion of the connecting device; the rod being connected to the tubular portion by two diametrical through bolts offset along the rod, and the connecting device comprising, for each of the four holes engaged by the aforementioned bolts, a substantially axial strap of composite material looped about the respective hole.

REFERENCES:
patent: 3476484 (1969-11-01), Brunsch
patent: 3810713 (1974-05-01), Joiner
patent: 4012169 (1977-03-01), Mouille et al.
patent: 4251309 (1981-02-01), Class et al.
patent: 4297078 (1981-10-01), Martin
patent: 4306836 (1981-12-01), Mayerjak
patent: 4455123 (1984-06-01), Sanders et al.
patent: 4568246 (1986-02-01), Hibyan et al.
patent: 4696623 (1987-09-01), Bost
patent: 4728263 (1988-03-01), Basso

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