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US 9,375,861 B2Granted
Tower
AssigneeSiemens Aktiengesellschaft
InventorKarsten Schibsbye
Life of this patent
Estimating the term…
Abstract
A concrete tower manufactured by an apparatus comprising a slipform, which is circumferentially guided in such a way that the slipform slides helically on top of the end face of the tower is provided. During the sliding, concrete is disposed by the slipform to the end face of the tower. After numerous revolutions, a low-cost tower is erected.
Claims14
A method to produce a concrete tower, comprising the steps of:
- utilizing a slipform, wherein the slipform is carried by a support device;
- and circumferentially guiding the slipform to slide helically on a top of an end face of the concrete tower disposing concrete by the slipform to the end face of the concrete tower while the concrete tower is prestressed, and the slipform has a first end and a second end separated by a section of the slipform that spans across a diameter of the concrete tower, both the first end and the second end physically engaging the concrete tower;
- and forming a helical groove into the concrete tower along an inner surface of the concrete tower to guide the support device.
Dependencies are inferred from the claim text.