Abstract: An improved wind-powered generator, comprising a wind wheel with semi-flexible sails, a supporting tower that can rotate freely with the wind direction, a fairing that ensures the wind wheel is always downwind of the tower, energy generators affixed to the upper tower and mechanically coupled to the rim of the wind wheel, and a controller that changes the angle of attack of the wings.

Abstract: A sectional folding up garage door refers to constructions with moving sectional elements intended for closing apertures in buildings and edifices. The area of invention's application is its use as automatically operated door both for private and commercial use. A sectional folding up garage door provides the sectional panel lifting up in vertical plane, folding such panel in consecutive order by two sections inside a premise as the door is being lifting, and piling compactly inside in the top part of an aperture. The door includes a panel of sections joint one by one like an accordion, a frame and sections power mechanism.