Windmill
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United States of America Patent
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-
Jun 30, 1992
Grant Date -
N/A
app pub date -
May 8, 1991
filing date -
Jun 4, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A windmill having a stator and a rotor. The rotor has the shape of a long convex blade having sharp edges and being symmetrical with respect to its longitudinal axis. The stator which surrounds and supports the rotor comprises a lower platform which acts as a base, an upper platform parallel to the lower platform and a set of vertical and also equally spaced vanes joining the two platforms. According to a first embodiment, each vane is formed of an outer stationary shutter joining the two platforms and of a movable inner shutter capable of pivoting about its longitudinal axis. In an other embodiment, the vanes are one-piece element and can pivot freely on posts of which the ends are secured to the two platforms. In either case, there is provided a control mechanism responsible for the angular orientation of the movable shutters or vanes.
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Family
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Cited Art Landscape
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