Marine propulsion – Screw propeller – Propulsion unit casing
Patent
1983-09-12
1985-12-17
Blix, Trygve M.
Marine propulsion
Screw propeller
Propulsion unit casing
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.
Cavil David T.
Krueger William R.
Blix Trygve M.
Outboard Marine Corporation
Sotelo Jesus D.
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