Method of manufacturing boat parts submerged when in use, and pa

Details Method of manufacturing boat parts submerged when in use, and pa Method of manufacturing boat parts submerged when in use, and pa

1982-05-18

1984-11-20

Blix, Trygve M.

Ships

Building

440 78, 440 49, 2642711, 264273, 416229R, 416241A, B63B 524

Patent

active

044832680

ABSTRACT:
A method of manufacturing boat parts submerged when in use comprises producing a metallic skeleton structure shaped for easiest production by conventional metal-forming methods, and covering this structure in a mold with an adhering layer or coating of a thermoplastic resin or a rubber-based vulcanizable substance. The inner walls of the mold have high finish and the desired streamlined outer shape of the finished product, such as a lower unit of a propulsion system, or a propeller and the like. The coating functionally neutralizes the technologically conditioned and generally not streamlined shapes of the skeleton structure and provides a protection of the skeleton structure against electroerosive corrosion.

REFERENCES:
patent: 2454200 (1948-11-01), Perkins
patent: 3153397 (1964-10-01), Mattson et al.
patent: 4304533 (1981-12-01), Buckell

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