Marine propeller block apparatus

Fluid reaction surfaces (i.e. – impellers) – Combined or convertible – Hub lubrication or seal

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416 5, 416 62, 440 74, 440113, B63H 114

Patent

active

052882080

ABSTRACT:
A block structure of a generally trapezoidal configuration is interposed between a cavitation plate and propeller of a marine engine's lower unit to effect abutment of the propeller permitting loosening and removal of the associated propeller retaining nut member.

REFERENCES:
patent: 4372243 (1983-02-01), Roope, Jr.
patent: 4624644 (1986-11-01), Hall
patent: 4850800 (1989-07-01), Zygutis

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