ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,924, issued on March 18, was assigned to Assa Abloy Entrance Systems AB (Landskrona, Sweden).
"Belt tensioning system" was invented by Roger Dreyer (Bjarred, Sweden) and Simon Onnered (Lund, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A belt tensioning system (170) for tensioning a belt (171) of a belt drive system (970) for transferring torque from a drive unit (112) of a door operating system (100) to a sliding door leaf (101) of a sliding door assembly (200), the belt tensioning system comprising a belt wheel (176) connectable to the belt (171) for torque transfer between said belt wheel (176) and an additional belt wheel (175) of the ...