Patent ID: 7481624

Claim:
A blade for a wind turbine, the blade having a hollow profile and having a root portion adjacent to an axis of rotation of the wind turbine and a tip portion spaced away from the axis of rotation, the blade extending from the axis of rotation to the tip portion, the blade comprising: a first rotor blade part having a first end positioned between the tip portion of the blade and the axis of rotation of the wind turbine and a second end spaced longitudinally along the rotor blade away from the first end, positioned closer to the tip portion of the blade than the first end; a second rotor blade part having a first end abutting with the second end of the first rotor blade part; a plurality of first fixtures coupled to the second end of the first rotor blade part; a plurality of second fixtures coupled to the first end of the second rotor blade part; a plurality of connecting members that respectively extend from a respective first fixture on the first rotor blade part to a respective second fixture on the second rotor blade part, the connecting members having a tensile stress placed thereon to apply compression between the first rotor blade part and the second rotor blade part to form a rotor blade portion composed of the first and second rotor blade parts having a butt joint at which they are held together by the connecting members.