Abstract: The present invention relates to a chassis for vehicle, comprising: a rigid frame, a pair of side wheels in a parallel configuration, a steerable front wheel, a steerable rear wheel, at least one electric motor, wherein at least one of said front wheel or rear wheel is connected to and driven by the at least one electric motor, and wherein said front and rear wheels are mutually connected through a turning mechanism arranged to turn said front and rear wheels simultaneously and synchronously between a middle position in which the axles of the front and rear wheels are substantially parallel with the axles of side wheels, and left or right positions, in which the axles of the front and rear wheels are substantially perpendicular to the axles of the side wheels.

Abstract: The present invention relates to a chassis for vehicle, comprising: a rigid frame, a pair of side wheels in a parallel configuration, a steerable front wheel, a steerable rear wheel, at least one electric motor, wherein at least one of said front wheel or rear wheel is connected to and driven by the at least one electric motor, and wherein said front and rear wheels are mutually connected through a turning mechanism arranged to turn said front and rear wheels simultaneously and synchronously between a middle position in which the axles of the front and rear wheels are substantially parallel with the axles of side wheels, and left or right positions, in which the axles of the front and rear wheels are substantially perpendicular to the axles of the side wheels.

Abstract: An apparatus for reduction of sonic vibrations caused when driving a foundation member below the surface of a liquid has a tube structure which is lowered below the surface of the liquid, and which receives the foundation member. A seal is in contact with the tube structure and creates a contained volume around the foundation member, which may be pumped dry so as to minimize the communication of sonic vibrations into the liquid.

Abstract: The new invention concerns a non-drip fluid coupling device intended for transferring a flow of at least one substance e. g. a fluid, where the fluid coupler comprises a first coupler and a second coupler, where the first coupler has first chamber connected to a first fluid communication and an first opening, a first valve body being biased against the first opening by a first biasing member, the second coupler has a second chamber connected to a second fluid communication and a second opening, a second valve body biased against the second opening by a second biasing member, a hollow needle element is positioned or formed within the second chamber and comprising a sealing element wherein the first and second coupler comprises guiding means adapted to aid the connection of the first and second couplers.