Constant voltage anode system

Marine propulsion – Screw propeller – Propulsion unit casing

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Details

440113, 204147, B63H 2124

Patent

active

045590176

ABSTRACT:
A marine propulsion unit having a housing exposed to sea water and subject to attack by the sea water is provided with a permanent type anode housing substantially constant surface characteristics mounted on the housing and supplied with constant voltage. Holes under the anode through the housing to interior passages permits the current on the anode to influence and protect the passages.

REFERENCES:
patent: 2941935 (1960-06-01), Miller et al.
patent: 3049479 (1962-08-01), Preiser et al.
patent: 3477931 (1969-11-01), Ueda et al.
patent: 4322633 (1982-03-01), Staerzl
patent: 4407711 (1983-10-01), Baboian et al.

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