Patent ID: 11933275
Assignee: VESTAS WIND SYSTEMS A/S
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 19:
20. An electro-thermal heating element, comprising:
an electrically resistive sheet material;
a first electrode in electrical contact with the sheet material and positioned at a first end of the resistive sheet material;
a second electrode which is in electrical contact with the sheet material and positioned at a second end of the sheet material; and
an electrically conductive strip which extends across a width of the element, wherein the sheet material has a first part on a first side of the strip and a second part on a second side of the strip,
the strip is in electrical contact with the first and second parts of the sheet material,
the first part of the sheet material has a first width, and
the second part of the sheet material has a second width which is different to the first width, and
wherein the first electrode, the second electrode, and the strip extend parallel to one another and a chord of a wind turbine blade.