Patent 10167597 was granted and assigned to Prinoth (company) on January, 2019 by the United States Patent and Trademark Office.
A ski slope snow tiller configured to travel in a travelling direction along the ski slope; the snow tiller having two supporting structures hinged to each other about a hinge axis; two shafts housed respectively in the supporting structures and configured to rotate about respective rotation axes crosswise to the travelling direction; tools fitted to the shafts; and at least one further tool connected at least to a shaft and located between the two supporting structures.