Patent ID: 8704120

Claim:
Welding device for powder welding, comprising a welding head for transportation of at least one welding electrode to a welding area, and a powder transportation device for transportation of powder from a container to the welding area, wherein the powder transportation device comprises: a first pipe having a first end extending into a top of the container, the first end having an opening for receiving powder from the container, a first ejector connected to a second end of the first pipe and arranged to produce an air stream for drawing powder out of the top of the container via the first pipe, using pressurized gas, and an air supply pipe arranged with one of its openings adjacent to the opening in the first end of the first pipe for supplying air to the opening of the first pipe, wherein the first ejector comprises an inlet, an outlet, and wherein the powder transportation device comprises a second pipe which is arranged fixed in the outlet of the first ejector and arranged to transport powder from the first ejector, wherein the second end of the first pipe is arranged fixed in the inlet of the first ejector.