The
Engineer's
Blog

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. 

Unexpected earthquakes not only cause high economic losses but also claim many lives, most being due to collapsing houses and buildings. In this article you will learn how earthquake-resistant construction can provide protection against this.