Electric auger
AssigneeArdisam, Inc.
InventorsRANDY SCHAMBERGER, Michael AVERY, Robert RUPPEL, David HARE
Life of this patent
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Abstract
An electric auger including an auger assembly with a coupling assembly at a proximal end, a cutting assembly having at least one cutting blade located at a distal end, and a helical flight located between the proximal end and the distal end. The electric power head includes an A/C motor with a drive shaft configured to mechanically couple with the proximal end of the auger assembly. An on-board 36-volt DC battery pack powers the A/C motor. A controller includes an inverter that converts DC power to A/C power for the A/C motor. The ratio of cubic inches of ice cut per battery ampere-hour per weight in pounds of the electric auger is at least about 900 (inches3/ampere-hour/pounds).
Claims20
An electric auger comprising:
- an auger assembly comprising a coupling assembly at a proximal end, a cutting assembly having at least one cutting blade located at a distal end, and a helical flight located between the proximal end and the distal end;
- a power head comprising;
- an A/C motor with a drive shaft configured to mechanically couple with the proximal end of the auger assembly;
- an on-board 36-volt DC battery pack;
- and
- a controller including an inverter that converts DC power to A/C power for the A/C motor,
- wherein a ratio of cubic inches of ice cut per battery ampere-hour per weight in pounds of the electric auger is at least about 900 (inches3/ampere-hour/pounds).
An electric power head for rotating an auger assembly of an ice auger, the electric power head comprising:
- an A/C motor with a drive shaft configured to mechanically couple with the auger assembly;
- an on-board 36-volt DC battery pack;
- and
- a controller including an inverter that converts DC power to A/C power for the A/C motor,
- wherein a ratio of cubic inches of ice cut per battery ampere-hour per weight in pounds of the electric power head is at least about 900 (inches3/ampere-hour/pounds).
A method of operating an electric auger, the method comprising the steps of:
- attaching an auger assembly to a drive shaft of an A/C motor located in a power head;
- converting power from a 36-volt, on-board DC battery pack to 36 volt, 120 Hz alternating current;
- powering the A/C motor in the power head with the 36 volt, 120 Hz alternating current;
- and
- engaging at least one rotating cutting blade located at a distal end of the auger assembly with ice, wherein a ratio of cubic inches of ice cut per battery ampere-hour per weight in pounds of the electric auger is at least about 900 (inches3/ampere-hour/pounds).
Dependencies are inferred from the claim text.