Force Technology Corp.

Peder Bent Hansen

Steen Arnfred Nielsen

Finn Dalhoff

Svend Egenfeldt

Torben Klit Pedersen

Lars Bo Andreasen

Hans-Ole Olsen

The present invention relates to a vacuum wall crawler having at least one vacuum track unit comprising a track frame, two pulleys provided in opposite ends of the track frame, and defining a wheelbase, an endless track arranged to circulate on the two pulleys, and comprising a flexible band, said flexible band comprising a plurality of apertures, and having a thickness, a vacuum distribution box provided in said track frame wherein the vacuum distribution box is in communication with a portion of the apertures to distribute a vacuum to the portion of apertures as the endless track circulates, where the thickness of the flexible band is 5-20% of the wheel base.

Vacuum wall crawler

This invention is related to a moulding device () arranged to be positioned inside a tubular member (). The moulding device () comprises a second closing part (), a shaft () loosely connected to the second closing part () and able to glide snugly through an opening in a first closing part (). When inserted into the tubular member (), the moulding device () defines a chamber together with the inner surfaces of thereof. To form a cast, this chamber is filled with moulding material which thereafter cures. To remove the cast and the moulding device () from the tubular member, a drawing force is applied to the first closing part (), which provides a pulling out of the rest of the moulding device () and the cast.

Moulding device and method of generating a cast of an inner surface of a tubular member

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Malmö, Sweden

Peder Bent Hansen