Abstract: A flexible sealing tube is described that is adapted to be installed in and extend along a bore in the ground for use in a system for exchanging of energy with the ground. The flexible sealing tube has a first tube end to be installed at an inner part of said bore, and the flexible sealing tube is closed in the first tube end. The flexible sealing tube also has a first channel and a second channel extending in a longitudinal direction (L) of the flexible sealing tube, the first and second channels being in fluid connection with each other. The first and second channels are formed by the flexible sealing tube.

Abstract: A flexible sealing tube is described that is adapted to be installed in and extend along a bore in the ground for use in a system for exchanging of energy with the ground. The flexible sealing tube has a first tube end to be installed at an inner part of said bore, and the flexible sealing tube is closed in the first tube end. The flexible sealing tube also has a first channel and a second channel extending in a longitudinal direction (L) of the flexible sealing tube, the first and second channels being in fluid connection with each other. The first and second channels are formed by the flexible sealing tube.

Abstract: A lifting device for connecting a lifting member to an object to be lifted. The device is particularly useful for attaching a lifting member to an unmanned underwater vehicle under open sea conditions. The device includes a first member to be connected to the lifting member and to be lowered together with the same guided by a rope ending at a second member, the second member being attached to the object in advance. The first member defines an opening for the second member such that when the first member is lowered guided by the rope, the second member will, due to the special shape of the two members, enter into the opening of the first member and establish a connection strong enough for lifting the object.