Rotary kinetic fluid motors or pumps – With means for controlling casing or flow guiding means in... – Vertical runner axis
Reexamination Certificate
2005-08-09
2005-08-09
Nguyen, Ninh H. (Department: 3745)
Rotary kinetic fluid motors or pumps
With means for controlling casing or flow guiding means in...
Vertical runner axis
C415S907000, C416S017000, C416S119000, C416S13200B, C416S13200B, C416S14600A
Reexamination Certificate
active
06926491
ABSTRACT:
A device for generating electricity in which wind blowing from any direction causes the rotation of sails around a vertical tower. As the sails rotate the sails moving toward the wind are automatically feathered, and the sails moving away from the direction of the wind are prevented from being feathered by sail restraints. An inner sail restraint positions each sail so that the sail gybes at an earlier time than would otherwise occur. An outer sail restraint “catches” the sail as it gybes, capturing much of the energy of the gybe, adding additional rotational force. The device may be used to extract energy from the wind to produce electricity.
REFERENCES:
patent: 232205 (1880-09-01), Preston
patent: 2038467 (1936-04-01), Zanoski
patent: 5844323 (1998-12-01), Hung
patent: 6116178 (2000-09-01), McCabe
patent: 6688842 (2004-02-01), Boatner
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