The
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The history of the RINGFEDER^® friction spring goes way back: from the first patent application, use in train bumpers, truck trailer couplings, and landing gears systems of airplanes up to advanced earthquake protection. Learn more about the most important milestones in this article.

Every year on Christmas night, Santa Claus secretly brings gifts to the children in the apartments and houses with his sleigh and puts them under the Christmas tree. Unfortunately, in the process, during the landings on the roofs, the load of the sleigh fully loaded with gifts regularly damages the supports of the skids. As a result, they have to be repaired at great expense, and there are delays in delivering the presents. To prevent this from happening again, Santa Claus has decided this year to protect the skids with dampers. 

What started almost a century ago as buffer between railway cars has now become a universally applicable damping element for almost all industry sectors – also as a protective element against potential damages to buildings and industrial facilities caused by earthquakes.