Marine propeller with replaceable blade sections

Details Marine propeller with replaceable blade sections Marine propeller with replaceable blade sections

1981-08-28

1983-11-29

Marcus, Stephen

Fluid reaction surfaces (i.e., impellers)

Having frangible or fusible part or connection

416 93A, 416134A, F03B 312

Patent

active

044178522

ABSTRACT:
A marine propeller includes a hub and a plurality of replaceable, respectively adjacently positioned blade support sections attached to the hub. The hub has a central portion and a plurality of spoke members that extend radially out from the central portion. Each of the blade support sections includes an inner lip that engages a respective one of the spoke members and an outer lip adjoining and overlapping the inner lip of an adjacent blade support section. Each pair of adjoining outer and inner lips are drawn tightly against a respective one of the spoke members by a plurality of screws. The spaces between the respective spoke members form a plurality of exhaust gas passages.

REFERENCES:
patent: 1076382 (1913-10-01), Maloney
patent: 1142916 (1915-06-01), Scott
patent: 1469045 (1923-09-01), MacMurchy
patent: 3790304 (1974-02-01), Langlois
patent: 3876331 (1975-04-01), Den Herder et al.

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