Snow shovel

Abstract

A snow shovel head, comprising an impeller rotately connected to an axle in a casing, a discharge chute and a chute handle, the casing comprising a back wall, a circumferential wall with an output to the chute, and a cut out bottom wall extending laterally from the back wall of the casing to the front opposite lateral corners of the bottom wall at the circumferential wall of the casing, and centrally from the back wall of the casing to the open front of the casing up to a tip recessed from said lateral corners; and the back wall extending to the lateral corners of the bottom wall at the circumferential wall; the impeller, when rotating, scooping up snow from the open front of the casing to an inner lateral surface of the circumferential wall of the casing towards the output to the chute for discharge of the snow.

1 . A snow shovel head, comprising an open front casing, an impeller rotately connected to an axle in the casing, a discharge chute and a chute handle, wherein:
 the casing comprising a back wall, a circumferential wall, a cut out bottom wall with front opposite lateral corners at the circumferential wall, and an output to the chute located on the circumferential of the casing;   wherein the bottom wall of the casing extends laterally from the back wall of the casing to the front opposite lateral corners of the bottom wall at the circumferential wall of the casing, and centrally from the back wall of the casing to the open front of the casing up to a tip recessed from said lateral corners; and the back wall extending to the lateral corners of the bottom wall at the circumferential wall;   when rotating, the impeller scooping up snow from the open front of the casing to an inner lateral surface of the circumferential wall of the casing towards the output to the chute for discharge of the snow.   
     
     
         2 . The snow shovel head of  claim 1 , wherein the chute, at a distal end thereof, is rotately connected at the output to the chute for rotation about a generally vertical axis, said rotation of the chute allowing controlling a position of the discharge of the snow. 
     
     
         3 . The snow shovel head of  claim 1 , further comprising a deflector pivotably connected to the chute handle about a generally horizontal axis at a proximal end of the discharge chute for upwards and downwards tilting; said tilting of the deflector allowing controlling a thickness of the discharge of the snow. 
     
     
         4 . The snow shovel head of  claim 1 , wherein the chute, at a distal end thereof, is rotately connected to the output to the chute at a rotative connection for rotation about a generally vertical axis, an outer wall of the output to the chute at the rotative connection comprising at least one rib, and an inner wall of the chute comprises at least one ball configured for interference with the at least one rib, thereby locking rotation of the chute relative to the output to the chute. 
     
     
         5 . The snow shovel head of  claim 1 , further comprising a deflector pivotably connected to the chute handle about a generally horizontal axis at a proximal end of the discharge chute for upwards and downwards tilting, said tilting of the deflector allowing controlling a thickness of the discharge of the snow; the chute, at a distal end thereof, is rotately connected at the output to the chute for rotation about a generally vertical axis; wherein the chute handle directs said rotation of the chute and said tilting of the deflector. 
     
     
         6 . The snow shovel head of  claim 1 , wherein the impeller comprises blades extending from the back wall of the impeller towards the open front of the casing on a first length corresponding to a length of the bottom wall of the casing up to the tip of the bottom wall, then bending forward in a direction of rotation of the impeller. 
     
     
         7 . The snow shovel head of  claim 1 , wherein the impeller comprises blades, at least one of the blades comprising front protruding teeth. 
     
     
         8 . The snow shovel head of  claim 1 , wherein a number of the blades is selected according to at least one of: an inner size of the casing, a diameter of the impeller, and a rotational speed of the impeller. 
     
     
         9 . The snow shovel head of  claim 1 , wherein a profile of the blades is selected according to at least one of: an inner size of the casing, a diameter of the impeller, and a rotational speed of the impeller. 
     
     
         10 . The snow shovel head of  claim 1 , wherein a shape of the blades is selected according to at least one of: an inner size of the casing, a diameter of the impeller, and a rotational speed of the impeller. 
     
     
         11 . The snow shovel head of  claim 1 , wherein at least one of: a number of the blades, a profile of the blades and a shape of the blades is selected according to at least one of: an inner size of the casing, a diameter of the impeller, and a rotational speed of the impeller. 
     
     
         12 . The snow shovel head of  claim 1 , wherein skid shoes are attached to an outer surface of the casing, said skid shoes having a selected length extending below the bottom wall of the casing. 
     
     
         13 . The snow shovel of  claim 1 , wherein said casing comprises a front skirt. 
     
     
         14 . The snow shovel of  claim 1 , wherein said opposite lateral corners at the circumferential wall of the casing are connected by a front bar. 
     
     
         15 . The snow shovel of  claim 1 , wherein the casing is plastic molded. 
     
     
         16 . The snow shovel of  claim 1 , wherein the blades are plastic molded. 
     
     
         17 . The snow shovel of  claim 1 , further comprising a handle extending from the back wall of the casing and supporting a motor, wherein said handle connects the axle of the impeller to the motor. 
     
     
         18 . A snow shovel comprising the snow shovel of  claim 1 , a handle, and a motor, and wherein said handle connects the axle of the impeller to the motor. 
     
     
         19 . The snow shovel of  claim 17 , wherein said handle comprises a main grip at a distal end thereof and a midgrip between a proximal end and the distal end thereof. 
     
     
         20 . A snow shovel comprising:
 a shovel head, said shovel head comprising:
 a open front casing, a impeller rotately connected to an axle in the casing, a discharge chute and a chute handle, wherein: 
 the casing comprising a back wall, a circumferential wall, a cut out bottom wall with opposite lateral corners at the circumferential wall, and an output to the chute located on the circumferential wall of the casing; 
 the bottom wall of the casing extending laterally from the back wall of the casing to the lateral corners at the circumferential wall of the casing, and centrally from the back wall of the casing to the open front of the casing up to a tip; and the back wall extending to the lateral corners of the bottom wall at the circumferential wall; 
 wherein, when rotating, the impeller scoops up snow from the open front of the casing to an inner lateral surface of the circumferential wall towards the output to the chute; 
 a motor; and 
 a handle connecting the axle of the impeller to the motor.