Back to results
US 6,404,078 B1Granted
Electric switch
AssigneeBlack & Decker Inc.
InventorsRoger Thomas, Daniel Bone
Life of this patent
Estimating the term…
Abstract
A battery powered lawn mower includes a cutting deck 2; an electric motor 6 mounted on the deck 2; a battery 8 mounted on the deck which is in electrical connection with the motor 6; and a switch 12 mounted on the deck 2. The switch is disposed closely adjacent both the battery 8 and the motor 6 and is between the battery and motor in the electrical circuit. The switch is linked by a cable to a lever mounted on the mower handle which controls the switch so as to be in one of two positions. In the first position the switch links the motor and battery so as operate the motor. In the second position, the switch links the two terminals of the motor so as to create regenerative braking within the motor.
Claims30
A battery powered lawn mower comprising:
- a cutting deck;
- an electric motor mounted on the deck and having two terminals;
- a battery mounted on the deck and in electrical connection with the motor;
- a switch mounted on the deck which forms part of the electrical connection between the battery and the motor, the switch comprising terminals, wherein, at least two of the said terminals each define an uninterrupted, connection free conductive path from said switch to said motor terminals.
1 more element
A battery powered lawn mower comprising:
- a cutting deck;
- an electric motor mounted on the deck and having two terminals;
- a battery mounted on the deck and in electrical connection with the motor;
- a switch mounted on the deck which forms part of the electrical connection between the battery and the motor, the switch comprising terminals;
- wherein:
- at least two of the said terminals extend from the switch and are connected directly to said motor terminals;
- and
- said switch comprises a sliding element having an electrical connector mounted thereon, wherein said electrical connector is slidable over said switch terminals so as to electrically link different adjacent pairs of said switch terminals depending on the relative position between the sliding element and said switch terminals.
5 more elements
A battery powered lawn mower comprising:
- a cutting deck;
- an electric motor mounted on the deck and having two terminals;
- a battery mounted on the deck and in electrical connection with the motor;
- a switch mounted on the deck which forms part of the electrical connection between the battery and the motor, the switch comprising terminals;
- wherein:
- at least two of the said terminals extend from the switch and are connected directly to said motor terminals;
- and
- said switch comprises a first terminal which is connected to both a first motor terminal and to a first battery terminal, a second terminal which is connected to a second motor terminal, and a third terminal which is electrically linked to a second battery terminal, wherein in a first mode of operation the switch electrically connects the second terminal to the third terminal and in the second mode of operation the switch electrically connects the first terminal to the second terminal.
5 more elements
A lawn mower comprising:
- a battery;
- a motor;
- a switch, said switch including a plurality of conducting strips;
- said battery, said switch and said motor forming an electrical circuit with said strips extending between said switch and said battery to define an uninterrupted, connection free conductive path between said switch and said battery and extending between said switch and said motor to define an uninterrupted, connection free conductive path between said switch and said motor.
1 more element
A lawn mower comprising:
- a battery;
- a motor;
- a switch, said switch including a plurality of conducting strips;
- said battery, said switch and said motor forming an electrical circuit with said strips extending between said switch and said battery and between said switch and said motor to link said switch in said circuit between said switch and said motor;
- wherein:
- said plurality of strips comprises three strips, said switch further comprising:
- a body, said three metal strips supported by said body;
- and
- a movable electrical connector carried by said body;
- wherein:
- a first of said strips is connected to a first battery terminal and a first motor terminal, a second of said strips is connected to a second motor terminal, and a third of said strips is electrically linked to a second battery terminal, said movable connector movable between a first position in which said connector electrically links said second strip and said third strip and a second position in which said connector electrically links said first strip and said second strip.
8 more elements
A lawn mower comprising:
- a deck plate;
- a battery;
- a motor;
- and
- a switch;
- comprising:
- a body;
- a first terminal extending between said body and said battery to form a first uninterrupted, connection free conductive path;
- a second terminal extending between said body and said motor to form a second uninterrupted, connection free conductive path;
- and
- a third terminal extending between said motor and said battery through said body to form a third uninterrupted, connection free conductive path.
8 more elements
Dependencies are inferred from the claim text.