Adjustable folding propeller
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 6, 1988
Grant Date -
N/A
app pub date -
Mar 10, 1987
filing date -
Jul 2, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Folding propeller which consists of blades (1) hinged to a hub (7) in such a way that they can turn about 56 degrees from a position at rest, where they are pointing aft, to a working position towards a stop. The identical movements of the blades (1) are achieved by the use of two cog-wheel connections, where each cog-wheel consists of only one tooth. The two connections are arranged side by side but in opposite directions in order to ensure a fixed connection. The tooth faces (10) may be given the shape of an arc of a circle. The propeller blades (1) may be fixed to the hub mechanism by means of pins (2) arranged in the longitudinal axis of the blades (1). The pitch of the blades (1) may then be changed.
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Cited Art Landscape
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