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US 8,464,497 B2Granted
Stay cable for structures
AssigneeUltimate Strength Cable, LLC
InventorWalter L. Lambert
Life of this patent
Estimating the term…
Abstract
A mast is erected to support a load. At least one stay cable supports the mast. The stay cable has an end and an opposite end. The end of the stay cable attaches to an upper region of the mast. The opposite end of the stay cable anchors at earth. The stay cable is oriented at an angle not exceeding ten degrees.
Claims19
A wind energy installation, comprising:
- a mast;
- a rotor assembly supported by the mast, the rotor assembly having at least one blade;
- and
- at least one stay cable having an end and extending uninterrupted along its length to an opposite end, the end of the stay cable attached to an upper region of the mast at a height greater than a tip of the blade of the rotor assembly, the stay cable comprising a bundle of parallel wires with each wire individually pulled to a tension value, the stay cable stressed to support the mast while wind rotates the tip of the blade without collision of the stay cable.
1 more element
A method, comprising:
- supporting a rotor assembly with a mast;
- attaching an end of a stay cable to an upper region of the mast at a height greater than a lowest point of a tip of a blade of the rotor assembly;
- anchoring an opposite end of the stay cable;
- orienting the stay cable to the mast at an angle inside a rotor disk of the blade, the angle having a maximum tangential value at least partially defined by a radial distance of the tip of the blade from the mast;
- and
- tensioning the stay cable to a stressed condition to support the mast while wind rotates the tip of the blade without collision of the stay cable.
3 more elements
An apparatus, comprising:
- a mast erected to support a load;
- and
- a stay cable having an end and extending along its entire length to an opposite end, the end of the stay cable attached to an upper region of the mast, the opposite end of the stay cable anchored, the stay cable stressed to support the mast at an acute angle less than or equal to ten degrees, the stay cable comprising a bundle of parallel wires with each wire individually pulled to a tension value.
Dependencies are inferred from the claim text.