US 12,144,293 B1
Battery powered debris blower
Scott Kinkead, Hopkins, MN (US); Lucas Crist, Coon Rapids, MN (US); and Nicholas Oeding, Shoreview, MN (US)
Assigned to TURFCO MANUFACTURING, INC., Blaine, MN (US)
Filed by TURFCO MANUFACTURING, INC., Blaine, MN (US)
Filed on Nov. 10, 2021, as Appl. No. 17/523,068.
Claims priority of provisional application 63/112,742, filed on Nov. 12, 2020.
Int. Cl. A01G 20/47 (2018.01)
CPC A01G 20/47 (2018.02) 6 Claims
OG exemplary drawing
 
1. A battery powered debris blower comprising:
a housing having a cylindrical shape including a linear axis, a first end and a second end opposite to the first end about the linear axis, the housing transportable with the linear axis being parallel to a surface;
an exit nozzle rotatably coupled to the second end of the housing, with the exit nozzle having a cylindrical shape including an arcuate axis, with the exit nozzle rotated relative to the housing;
a turbine stator stationary inside of the housing intermediate the first and second ends;
a turbine rotor rotatable about the linear axis inside the housing, with the turbine rotor located intermediate the turbine stator and the first end of the housing;
a high-speed electric motor mounted relative to the housing, wherein the high-speed electric motor uses 3-phase alternating current;
a direct drive linkage connecting the high-speed electric motor to the turbine rotor;
a battery pack mounted relative to the housing, wherein the battery pack has a direct current battery voltage of 100 volts;
a motor controller electrically connected between the battery pack and the high-speed electric motor, the motor controller inverting the direct current battery voltage of the battery pack to the 3-phase alternating current of the high-speed electric motor;
a body of a cylindrical shape of a smaller diametric size than the cylindrical shape of the housing and circumferentially spaced spindles extending from the body to the inside of the housing, with the turbine stator fixed to the body; a shaft rotatably mounted in the body and the turbine stator and extending along the linear axis, with the turbine rotor being rotatably fixed to the shaft, with the direct drive linkage rotatably connected to the shaft;
a nozzle motor rotating the exit nozzle about the linear axis relative to the housing; a display displaying information;
a DC-DC converter electrically connected to the nozzle motor and the display, wherein the DC-DC converter steps down the direct current battery voltage to 12 volts;
a control controlling the motor controller and the DC-DC converter; and
a GPS unit networked with the control, with the control stopping and rotating the turbine rotor at specific locations on the surface.