Outboard jet drive for watercraft

Details Outboard jet drive for watercraft Outboard jet drive for watercraft

1994-09-22

1996-07-16

Swinehart, Edwin L.

Marine propulsion

Jet drive

440900, 440 53, B63H 1100

Patent

active

055361870

ABSTRACT:
A jet propelled watercraft having an outboard motor type of jet propulsion unit. The jet propulsion unit is disposed in substantial part forwardly of the transom and beneath the undersurface of the hull for improving its pumping efficiency. The jet propulsion unit is driven by a transmission including a drive shaft having a pivotal joint. The jet propulsion unit is pivotal relative to the engine about an axis containing the axis of the universal joint so that the water inlet opening may be swung upwardly through an opening in the undersurface of the hull which is above the water level for clearing foreign objects from the jet propulsion unit water inlet opening.

REFERENCES:
patent: 2917019 (1959-12-01), Krueger
patent: 2975750 (1961-03-01), Smith
patent: 3112610 (1963-12-01), Jerger
patent: 3283737 (1966-11-01), Gongwer
patent: 3702485 (1972-11-01), Thompson
patent: 3807344 (1974-04-01), Giacosa
patent: 4437841 (1984-03-01), Stallman

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