B - Operations – Transporting – 63 – B
Patent
B - Operations, Transporting
63
B
115/22, 114/25
B63B 5/24 (2006.01) B29C 37/00 (2006.01) B29C 70/70 (2006.01) B63H 1/14 (2006.01) B29C 45/00 (2006.01)
Patent
CA 1202214
A B S T R A C T 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 vulcaniz- able substance. The inner walls of the mold have high finish and the desired streamlined outer shape of the finished pro- duct, such as a lower unit of a propulsion system, or a pro- peller and the like. The coacting 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.
403434
Marks & Clerk
Volvo Penta Ab
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