ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,423, issued on March 31, was assigned to Wirtgen GmbH (Windhagen, Germany).
"Edge slump control" was invented by Michael Engels (Montabaur, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and apparatus for controlling edge slump in newly formed concrete structures formed by a slip form paving machine. An edge height sensor generates an edge height signal corresponding to a height of an edge of the newly formed concrete structure to thereby detect a slumping of the edge of the newly formed concrete structure behind a slip form paver mold. A controller receives the edge height signal, determines whether any slumping of the edge of the ...