Abstract: The invention relates to a method to provide a heated fluid from a fluid container comprising a fluid having a lower temperature wherein a user provides a kinetic motion which motion results in an electric current, which electric current is directly or indirectly used to heat the fluid The invention is also directed to a heating device, intended for cooperating with a fluid container, equipped with a discharge opening fluidly connected to a nozzle, in which the heating device is equipped with means of attachment for attaching the heating device on to the fluid container and fixing means for connection to a flow opening of the fluid container, a fluid space for the reception of an amount of fluid from the flow opening from the fluid container, means of heating for heating the fluid present in the fluid space and a generator for generating electrical energy for the means of heating

Abstract: The invention relates to a collapsible sports goal. The goal consists of a triangular base-frame made from textile straps with corner-pieces that make contact with the ground surface. A bent pole and a straight pole are fitted in the corner pieces. The bent pole and the straight pole are connected in the middle of the bent pole. The set of poles holds a net that is fixed to the bent pole via the means of a sleeve and drapes over the straight pole. The structure may be anchored to the ground surface with pegs.

Abstract: The invention relates to a drive device for a hydraulic elevator, the device comprising an actuator (1) whose pressure chamber (1a) is connected to a pump (11) via a down duct (15) and via an up duct (16). A pressure accumulator (4) is connected to the down and up ducts (15, 16) via parallel ducts (15a, 16a), each duct having an electrically controlled valve (2, 2a; 6, 6a). While the elevator is moving downwards, hydraulic fluid is transferred from the pressure chamber (1a) to the accumulator (4) via the down duct (15) and the parallel duct (16a). While the elevator is moving upwards, hydraulic fluid is transferred from the accumulator (4) to the pressure chamber (1a).