Abstract: A snowblower includes a main frame, an auger mounted to the main frame via a rotating shaft that defines a rotational axis, a fan rotatably mounted to the main frame coaxially to the auger; and a gear box for operatively coupling both the auger and the fan to an external drive shaft. The gear box has an input shaft for operatively coupling to the external drive shaft, a first output shaft coupled to the auger and a second output shaft coupled to the fan.

Abstract: A snow blower including an adjustable back that allows to blow snow in a forward direction or backwards. The adjustable back is actuated by a cylinder or a hydraulic motor that makes rotate the back in a forward or backward direction of a bidirectional auger rotating clockwise for clearing snow collecting in its opening until snow is intercepted by the bidirectional auger and directed on an arrangement of impellers arranged on the bidirectional auger propelling snow toward the rotating ejection pallets until snow is directed toward a discharge chute. And when the snow level is high a movable cover secured to the structure of the snow blower is lifted by a cylinder to let snow fall on the bidirectional auger and to be directed on the arrangement of the impellers propelling snow toward the rotating ejection pallets until snow is directed toward the discharge chute.

Abstract: This invention is a swiveling blade snow blower with central chute, allowing snow to be blown in the desired direction, whether backing up or going forward. A toothed wheel placed on the side of the swiveling blade is powered by a hydraulic stepping motor that makes the said blade turn forward and backward, plowing the snow through the opening until intercepted by a bidirectional auger that sends the snow at the center of the said auger into the impeller, which propels the snow out, in the desired direction, through the discharge chute located in the centre.

Abstract: A snow thrower including a rotating arched wall on which is disposed a gear wheel operated by a motor making fall downwards the arched wall in moving forward or in the opposite direction for clearing snow by pushing it inside the opening of the rotating arched wall until that the snow is catched by an unidirectional endless screw that propels the snow towards a fan for blowing it through a discharge chute.