Marine propeller

Details Marine propeller Marine propeller

1988-08-31

1989-10-24

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Having frangible or fusible part or connection

416 93A, 416241A, B63H 120

Patent

active

048758299

ABSTRACT:
A marine propeller possessing several features; e.g., one-piece cast or molded construction which in one embodiment preferably of the invention is a plastic of the class including polyester; an improved center or core structure in the form of a nave or barrel having an annular wall concentrically surrounding a power-shaft-receiving hub joined to the annular wall by relatively thin spokes configured as vanes functioning as an interior turbine. Propeller blades are joined to and project radially from the exterior of the nave in typical fashion.

REFERENCES:
patent: 2616511 (1952-11-01), Perrott
patent: 3092185 (1963-06-01), Alexander
patent: 3246698 (1966-04-01), Kiekhaefer
patent: 3865509 (1975-02-01), Frazzell et al.
patent: 4331429 (1982-05-01), Koepsel et al.
patent: 4388070 (1983-06-01), Kasschau
patent: 4477228 (1984-10-01), Duffy et al.
patent: 4511339 (1985-04-01), Kasschau
patent: 4667758 (1987-06-01), Dennis

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