Stepped Surface Propeller

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United States of America Patent

SERIAL NO

14253587

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Importance

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Abstract

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A marine surface propeller, and blade therefore, which is surface piercing and partially submerged, and includes a blade geometry that improves distribution of pressure and control to wetted and ventilated regions. Preferably, the feature has a positive step (ramp, cup, interceptor, indent or other geometric addition or intervention) between one fifth and four fifths chord length so as to create a high pressure peak or zone in what is now a low pressure zone on either the blade face or back or both and to create speed controllable wetted and ventilated regions.

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Patent Owner(s)

Patent OwnerAddress
TWIN DISC INC1328 RACINE ST RACINE WI 53403

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rolla, Philip Bruzella, CH 10 34

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