Marine propulsion – Screw propeller – Propulsion unit casing
Patent
1995-08-21
1996-07-16
Swinehart, Edwin L.
Marine propulsion
Screw propeller
Propulsion unit casing
440 76, 440900, B63H 2124
Patent
active
055361889
ABSTRACT:
A nose cone attachment for an outboard motor propeller gearcase has a molded polymer housing shaped to fit over the front and sides of an outboard propeller gearcase and has an aerodynamic nosepiece shape on the front thereof with a plurality of water inlets thereon. The molded polymer housing has open water channels or plenums thereinside which form wide passageways with the gearcase housing sides when the nose cone attachment is attached over the gearcase housing. The open water channels are positioned to fit over the gearcase water inlets. The housing is adhesively attached but may also have a plurality of screw openings formed in the side thereof and positioned for attaching screws therethrough to attach the nose cone to a gearcase outboard motor prop. The method of attaching a nose cone to an outboard motor propeller gearcase includes the step of selecting a molded polymer housing in accordance with the apparatus, fitting the selected nose cone over the front of the outboard prop gearcase and aligning the water channels or plenums over the gearcase water inlets and adhesively attaching the selected and aligned molded polymer housing to the gearcase whereby an outboard nose cone is attached to an outboard prop gearcase for feeding water into the cooling system of the outboard prop gearcase.
REFERENCES:
patent: 3240181 (1966-03-01), Chandler et al.
patent: 3939795 (1976-02-01), Rocka
patent: 4752257 (1988-06-01), Karls et al.
patent: 4767366 (1988-08-01), Lang
patent: 4832635 (1989-05-01), McCormick
patent: 5000709 (1991-03-01), Bergeron
Hobby III William M.
Swinehart Edwin L.
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