Marine propeller with rubber bushing having lobular configuratio

Details Marine propeller with rubber bushing having lobular configuratio Marine propeller with rubber bushing having lobular configuratio

1995-01-04

1996-06-04

Avila, Stephen

Marine propulsion

Screw propeller

With vibration dampening

416134R, 416244B, B63H 2130

Patent

active

055227430

ABSTRACT:
Disclosed herein is a marine propeller comprising a marine propeller comprising an inner bushing adapted to be mounted on a propeller shaft for common rotation therewith and having an axis and an outer surface, a resilient bushing fixed to said outer surface of said inner bushing and having a cylindrical outer surface extending, when relaxed, at a first radial distance from said bushing axis, an outer bushing having an inner bore defined by a lobular surface having a maximum radial distance from said bushing axis less than said first radial distance, receiving said resilient bushing in a compressed condition and with said lobular surface in continuous circumferentially extending engagement with said outer surface of said resilient bushing, and comprising a series of inwardly concave cylindrical segments, and a series of blades extending radially outwardly from said outer bushing.

REFERENCES:
patent: 1402463 (1922-01-01), Wilson
patent: 2543396 (1951-02-01), Wolff
patent: 3113625 (1963-12-01), Conover
patent: 3356151 (1967-12-01), Strang
patent: 3563670 (1971-02-01), Knuth
patent: 3748061 (1973-07-01), Henrich
patent: 4642057 (1987-02-01), Frazzell et al.
patent: 5244348 (1993-09-01), Karls et al.
patent: 5252028 (1993-10-01), LoBosco et al.
patent: 5322416 (1994-06-01), Karls et al.

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