Patent attributes
A shock absorber for use in lowering a structure in a body of sea water. The shock absorber includes a cylinder with a piston arranged slidably therein, said piston having a piston rod which in use extends downwards out of the cylinder, wherein at least one chamber in the cylinder above the piston is fillable with a fluid and is provided with means for controlled exiting of the fluid from the chamber when the piston rod is subjected to an impact force which presses the piston inwards in the chamber. Said fluid is water deliverable from the body of sea water to said chamber through a valve device having a one-way function in the piston, and the piston and the piston rod alone have sufficient weight to pull the piston down and provide renewed filling of the chamber with water when the impact force has ceased.
