Air exhaust by-pass for underwater exhaust systems

Details Air exhaust by-pass for underwater exhaust systems Air exhaust by-pass for underwater exhaust systems

1985-02-12

1986-07-22

Blix, Trygve M.

Marine propulsion

Means for accomodating or moving engine fluids

Means for handling exhaust gas

B63H 2132

Patent

active

046016660

ABSTRACT:
This invention relates to outboard motors and inboard-outboard motors and more specifically to the underwater exhaust systems built into both of these types of marine propulsion. The object of this invention is to provide a method of and apparatus for selective rerouting the underwater exhaust through a muffled above water outlet while effectively blocking the underwater exhaust emanations.

REFERENCES:
patent: 871459 (1907-11-01), Thorsen
patent: 929057 (1909-07-01), Walters
patent: 3045423 (1962-07-01), Hulsebus
patent: 3174275 (1965-03-01), Collin
patent: 3282046 (1966-11-01), Walker
patent: 3282373 (1966-11-01), Gazzaka
patent: 3371645 (1968-03-01), Ward
patent: 3552121 (1971-01-01), Kitagawa
patent: 3576172 (1971-04-01), Ward
patent: 3646764 (1972-03-01), Nakajima
patent: 4151499 (1979-04-01), Ganowsky

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