Abstract: Arrangement at a plug for sealing liquid- or gas-carrying pipes, comprising several slips (15) arranged peripherally on the plug, so as to allow them to be pushed up along a conical force ring (25) by means of a hydraulic cylinder (5), where the slips (15) are provided with a possibly divided sliding surface (19, 19?) and at least one possibly divided sliding surface (20, 23) having an angle that differs from the angle of the sliding surface (19, 19?). The force ring (25) has sliding surfaces (27, 29, 29?, 31) that correspond to the sliding surfaces (19, 19?, 20, 23) of the slips. The first part of the sliding surfaces (20, 23, 27, 31) has a steep gradient and the second part of the sliding surfaces (21, 21?, 29, 29?) has a small gradient.

Abstract: A fish farming net having conductive wires integrated into the filaments of the net. The conductive wires are arranged in circuits, each of said circuits defining a field connected to an electronic apparatus that monitors a certain electrical parameter of the field. The wires of each circuit are arranged in a pattern whereby the wires are close enough together that a hole large enough for fish to escape will necessarily break one of the wires. In the event the circuit is broken, the monitoring apparatus detects a change in the electrical parameter being monitored and signals an appropriate alarm.

Abstract: A flexible figure in the form of a human engaged in a particular athletic or recreational activity, such as snowboarding. The figure further comprises arm and leg sections connected at realistic joints, and joined to the torso by couplings all of which realistically simulate the flexibility limitations of the human body. A length of elastic material functioning as an artificial muscle, which is connected between the upper leg and the lower leg behind the knee joints, and an resilient covering over the elbow joints, automatically return the figure to a preselected starting stance.

Abstract: The main problem area this invention is solving, is concerning reservoirs containing gas with to low well-head pressure. It is therefore desirable to increase the well-head pressure by applying downhole pumps, however this is not possible if gas is present. The core idea in this present invention, is to place a pump (5) in a “bath” of oil (14), in which oil “bath” (14) makes a gas seal (11), assuring the pump only to be imposed to oil without gas. Oil and gas from the reservoir (1) flows trough perforations (2), into a ring-space (3). This creates a significantly pressure drop of the mixture, in which creates turbulence so the gas content will separate from the oil. The pressure drop is regulated by the gas pressure valve (4).