Bolt-Check has been granted a patent

We are pleased to announce that our PCT application from the international patent authorities has been approved. At the same time, we obtained the grant of this worldwide patent protection. After examining Bolt-Check, the international patent authorities found our invention innovative. This means that R&D Test Systems have a patent on the measuring method that calculates the length of pre-loaded bolts.

Bolt-Check can be used both when installing new bolts and when evaluating existing bolts as part of determining the lifespan of wind turbines. The ultrasonic measurement system helps you prevent issues that previous methods have not been able to. By combining ultrasound- and mechanical length, our method measure the length of the bolt without loosening them.