Vertical axis windmill and wind turbine system for...

Details Vertical axis windmill and wind turbine system for... Vertical axis windmill and wind turbine system for...

2011-07-19

2011-07-19

Look, Edward (Department: 3745)

Rotary kinetic fluid motors or pumps

With means for controlling casing or flow guiding means in...

Natural fluid current force responsive

C416S023000, C416S140000

Reexamination Certificate

active

07980810

ABSTRACT:
A lift-type wind turbine having a substantially vertical rotating shaft and a plurality of substantially vertical blades secured to the shaft. Each blade includes a front portion, a rear portion, and a pivot axis pivotally securing the rear and front portions. The rear portion pivots relative the front portion. The blades additionally include bottom and top edges positioned on each of the front portions. Each bottom edge is arranged substantially equidistant from the shaft proximate a first circumference extending substantially horizontally about the shaft, whereas each top edge is arranged substantially equidistant from the shaft proximate a second circumference extending substantially horizontally about the shaft. The blades are angled relative to the rotating shaft. The blades have an open, drag means position as well as a closed, lift means position, and passively switch between the positions based on wind speed for efficient rotation.

REFERENCES:
patent: 55153870 (1980-12-01), None

Affiliated with

Also associated with

Rating

Vertical axis windmill and wind turbine system for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vertical axis windmill and wind turbine system for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vertical axis windmill and wind turbine system for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2623247