Patent ID: 8794406

Claim:
A damper, comprising: a cylinder provided with a first attachment means; and a piston displaceable within said cylinder and which is fitted on a hollow piston rod with a second attachment means, wherein said cylinder is divided into a first chamber and a second chamber by said piston, wherein a first passage for damping fluid from the second chamber to said first chamber is present, a first main non-return valve determining a characteristic of attenuation for limiting the flow of damping fluid being present in said first passage, and a first auxiliary non-return valve being present in said first passage and operable in the same direction as the first main non-return valve so that both of said first main non-return valve and said first auxiliary non-return valve only permit fluid flow from the second chamber to the first chamber, a space being defined in the first passage between the first main non-return valve and the first auxiliary non-return valve, the first main non-return valve being arranged at a second chamber side of said space, and the first auxiliary non-return valve being arranged at a first chamber side of said space, wherein said second chamber comprises a bottom of said cylinder, wherein a liquid reservoir is present and in fluid connection with said second chamber, wherein another non-return valve is present in said fluid connection between the liquid reservoir and the second chamber so as to block fluid flow from said second chamber to said liquid reservoir, and a sleeve extends from the bottom of said cylinder, the sleeve being in fluid communication with said liquid reservoir at the bottom of the cylinder, and wherein said space between said first main non-return valve and said first auxiliary non-return valve is directly connected to said sleeve so that a connection from said second chamber to said sleeve is present via the piston downstream of said first main non-return valve so as to only provide fluid flow from the second chamber to said sleeve and said reservoir when the piston is moved to the bottom of said cylinder.