ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,998, issued on Nov. 18, was assigned to RXD-RESEARCH EXCHANGE DEVELOPMENT AB (Krylbo, Sweden).
"Energy dissipation device" was invented by Roger Danielsson (Krylbo, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "An energy dissipation device is shown in connection with its implementation in train couplers. The energy dissipation device comprises axially compressible, irreversibly deforming steel elements arranged in a housing and axially pre-tensioned between a compression means and a counter-pressure means. In case of an impact, the compression means is moving in sliding contact with the inside wall of the housing to provide axial compression...