Patent-family-89122042

A device for achieving linear movement in one direction and stiffness in all other directions. As an example, a recoil causes strong forces in a linear movement, but any ridges will produce errors as two units each try to return to its original position. The device is a damper. The linear displacement by a recoil is mitigated using two set of blades, one absorbing the linear recoil, and a second for hindering the linear parallel deflection of the first set by the recoil or for increasing the stiffness provided by the first set of blades. The produced errors are much smaller or none as the recoil is mitigated using the very strong damper.