Propeller and coupling member

Details Propeller and coupling member Propeller and coupling member

1987-11-04

1989-06-27

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Ambient fluid or exhaust gas directed through hub, fairing...

416 2, 416241A, 416244B, 416245A, B63H 120

Patent

active

048424838

ABSTRACT:
Disclosed is a marine propeller for inboard, outboard, or inboard/outboard motors. The propeller is made from a non-metallic composite material that will not deform or deflect even at very high horsepower or RPMs. At the same time, the propeller is substantially less expensive than traditional metallic propellers. An especially unique feature of the propeller is that, unlike metallic propellers, it will shatter when it strikes a solid object in the water, thereby avoiding the engine and drive line damage that occurs when rigid metallic propellers strike a solid object. Also disclosed is a coupling member that permits the propeller to be adapted for use with most inboard/outboard motor configurations.

REFERENCES:
patent: 3307634 (1967-03-01), Bihlmire
patent: 3318388 (1967-05-01), Bihlmire
patent: 3477794 (1969-11-01), Abbott et al.
patent: 3701611 (1972-10-01), Lambrecht
patent: 4477228 (1984-10-01), Duffy et al.
patent: 4566855 (1986-01-01), Costabile et al.
patent: 4676758 (1987-06-01), Dennis

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