Patent JPS5652737A successfully refreshed from Google Patents.
Patent JPS5247294A successfully refreshed from Google Patents.
JPS5247294A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Sail capable of increasing propelling force
Assignee: TOKYO DENKI DAIGAKU
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Filing: 1975-10-11
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Granted: —
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Expires: 1995-10-11
Abstract
Abstract PURPOSE: To provide a sail capable of increasing propelling force, in which projections are provided on one side of the sail to produce turbulent boundary layer, so that air can flow along the surface of the sail with low resisting force and thus propelling force can be increased. COPYRIGHT: (C)1977,JPO&Japio
Inventors
- 👤 Mototane Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-08 13:02
CPC Classifications
—
Claims Analysis
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References Cited (Backward Citations)
US3776170A
Cited
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