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US 12,296,694 B2Granted
Lawnmowers
AssigneeTechtronic Cordless GP
InventorsJonathan Feldkamp, Shuai Shao, Nikolas Mika, Stephen Frost, Denis Ogiyenko, Grzegorz Kondro, Clint Cagle, Elry Hodge, Colin Hines, Raony Barrios
Life of this patent
Estimating the term…
Abstract
Lawnmowers are provided. A lawnmower includes a first battery having a first voltage, the first battery mounted on the lawnmower; a second battery having a second voltage different than the first voltage, the second battery mounted on the lawnmower; and a booster configured to boost the second voltage to the first voltage, wherein the booster is connected to a common rail operating at the first voltage.
Claims21
A lawnmower comprising:
- a first battery having a first voltage, the first battery mounted on the lawnmower;
- a second battery having a second voltage less than the first voltage, the second battery mounted on the lawnmower, wherein the lawnmower is operational without the second battery electrically coupled to the lawnmower, and wherein the second battery electrically discharges only when the first battery drops below a threshold charge level;
- and
- a booster configured to boost the second voltage to the first voltage, wherein the booster is connected to a common rail operating at the first voltage,
- wherein the first and second batteries operate in parallel along the common rail.
2 more elements
A lawnmower comprising:
- a plurality of first batteries each having a first voltage and each receivable in a separate compartment of a first battery receiving area of the lawnmower;
- a plurality of second batteries each having a second voltage different than the first voltage and each receivable in one of a plurality of second battery receiving areas of the lawnmower, the second battery receiving areas being different than the first battery receiving area;
- and
- a booster configured to boost the second voltage to the first voltage, wherein the booster is connected to a common rail operating at the first voltage,
- wherein the lawnmower defines a centerline, wherein the lawnmower comprises a seat overlapping the centerline, wherein the first battery receiving area overlaps the centerline, wherein at least one of the second battery receiving areas is disposed entirely on a side of the centerline and does not overlap the centerline, wherein the second batteries initiate discharge only when the lawnmower or a component thereof reaches a prescribed threshold, wherein the lawnmower is operational without the second batteries electrically coupled to the lawnmower, and wherein the first and second batteries are each independently removable from the lawnmower.
2 more elements
A lawnmower comprising:
- a first battery having a first voltage, the first battery mounted on the lawnmower;
- a second battery having a second voltage different than the first voltage, the second battery mounted on the lawnmower;
- and
- a booster configured to boost the second voltage to the first voltage, wherein the booster is connected to a common rail operating at the first voltage,
- wherein the first and second batteries operate in parallel along the common rail, wherein the second battery is not directly coupled to the common rail, wherein the lawnmower is operational without the second battery electrically coupled to the lawnmower, and wherein the second battery initiates discharge only when the first battery drops below a threshold charge level.
2 more elements
Dependencies are inferred from the claim text.