Semi-articulated flexstrap

Details Semi-articulated flexstrap Semi-articulated flexstrap

1977-09-30

1980-12-30

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

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

Nonmetallic resilient mounting

416141, 64 12, 74579R, B64C 2738

Patent

active

042420482

ABSTRACT:
A semi-articulated flexstrap for use in connecting a rotor blade to the hub of a helicopter rotor is disclosed. The flexstrap includes a series of straps which alternatingly crisscross at a point between the blade and hub. The straps are substantially parallel to the plane of rotation of the rotor at the crossover point and unrestrained so as to permit relative movement between the straps. The relative movement of the straps of articulation of the flexstrap in the plane of rotation of the rotor permits lead lag motion of the rotor blade to occur.

REFERENCES:
patent: 989064 (1911-04-01), Schmalzried
patent: 1040136 (1912-10-01), Brown
patent: 1424051 (1922-07-01), Wayne
patent: 1602912 (1926-10-01), Leipert
patent: 3362253 (1968-01-01), Ditlinger
patent: 3388615 (1968-06-01), Ditlinger
patent: 3474507 (1969-10-01), Thompson
patent: 3518025 (1970-06-01), Schmidt et al.
patent: 3765267 (1973-10-01), Bourquardez et al.
patent: 3782220 (1974-01-01), Ditlinger
patent: 3879153 (1975-04-01), Breuner
patent: 3893788 (1975-07-01), Ditlinger
patent: 3988906 (1976-11-01), Smith
patent: 4029435 (1977-06-01), Barker
patent: 4038885 (1977-08-01), Jonda
patent: 4116018 (1978-09-01), Weible

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