Propeller blade pin attachment

Details Propeller blade pin attachment Propeller blade pin attachment

1989-10-11

1991-07-30

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

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

Nonmetallic resilient mounting

B64C 1100, B64C 2700

Patent

active

050355767

ABSTRACT:
A pitch retention member has a mounting surface which receives an elastomeric bearing disposed within a coupling attaching to the root end of the propeller blade. The mounting surface of the pitch retention member is conical. The coupling has a conically shaped bearing mounted therein which is bolted to the root end of the propeller blade. By bolding the coupling to the spar the conically shaped elastomeric bearing is precompressed against the conical mounting surface.

REFERENCES:
patent: 3589835 (1971-06-01), Linden
patent: 3764230 (1973-10-01), Rybicki et al.
patent: 3862812 (1975-01-01), Gorndt et al.
patent: 4108508 (1978-08-01), Clinard Jr.
patent: 4257739 (1981-03-01), Covington et al.
patent: 4297078 (1981-10-01), Martin
patent: 4365936 (1982-12-01), Hatch
patent: 4877375 (1989-10-01), Desjardins

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