Emergency enablement device for a boat propeller

Details Emergency enablement device for a boat propeller Emergency enablement device for a boat propeller

1994-06-03

1996-11-12

Larson, James

Fluid reaction surfaces (i.e., impellers)

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

416146R, 416244B, B63H 120, B63H 2026

Patent

active

055733727

ABSTRACT:
Disclosed is an apparatus for emergency enablement of a boat propeller. The apparatus includes a central mounting plate having an aperture for engagement with one end of the propeller shaft to which the propeller is attached. A drive plate is affixed to the central mounting plate for drive engagement with the propeller. Upon striking an underwater object, bolts connecting the drive and mounting plate will shear to protect the boat's engine from damage. One or more cantilevered members, the proximal ends of which are fixed around the periphery of the central mounting plate, extend from the mounting plate for disposal within longitudinal spaces of the boat propeller.

REFERENCES:
patent: 3589833 (1971-06-01), Lancioni
patent: 3759076 (1973-09-01), Reese
patent: 3827259 (1974-08-01), Brucker
patent: 3857257 (1974-12-01), Steiner et al.
patent: 3876331 (1975-04-01), DenHerder et al.
patent: 4097191 (1978-06-01), Genuardi
patent: 4218896 (1980-08-01), van der Lely
patent: 4317655 (1982-08-01), Schiek
patent: 5071376 (1991-12-01), Walker

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