ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,659, issued on June 23, was assigned to Metso Finland Oy (Espoo, Finland).
"Dust sealing" was invented by Aki Lautala (Espoo, Finland), Mika Peltonen (Espoo, Finland), Maxime Delahaye (Espoo, Finland) and Paulo Barscevicius (Espoo, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "An arrangement for dust blocking in a cone crusher, a cone crusher, and a method for the dust blocking and manufacturing the cone crusher, in which a crusher head is supported by a support cone. A linear actuator vertically moves the crusher head for setting adjustment and/or tramp iron release. A lower surface of the support cone, at least in part, defines a downward...