Boat propeller
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United States of America Patent
Stats
-
Jun 30, 1981
Grant Date -
N/A
app pub date -
Jun 14, 1979
filing date -
Jun 27, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a boat propeller with foldable blades, a so-called folding propeller. The characteristic feature of the propeller is that it is provided with resilient structure disposed to brake the swinging movement of the blades as they are spread out from the folded position to the operating position.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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