A method for recharging a battery pack (40; 40') includes attaching a portable charger (120) to a user, which portable charger comprises or is attached to a self-contained power supply (130, 140) and wherein a first charging port (132, 146) of the portable charger is disposed, e.g., on a belt (144) worn by the user, hanging the battery pack on the belt while the battery pack is physically engaged and in electrical communication with a power tool (10; 10'), and initiating a transfer of power from the charger to the battery pack when the first charging port is at least proximal to a second charging port (85, 148) that is in electrical communication with at least one battery cell (50) of the battery pack. A portable charging system capable of performing this method, as well as an adapter for use in performing this method, are also disclosed.

Portable battery pack charging system, method for recharging a battery pack, and adapter therefor

A method and system for wirelessly tracking power tools and related devices to aid with inventory management and to help minimize, prevent, and recover misplaced or stolen tools throughout the job site. The tools and/or batteries include wireless transmitting capabilities (e.g., an ISM unit) to transmit data to a fob, puck repeater, and/or gateway over an ISM network. The gateway is operable to translate and output the ISM communications over a cellular network to a remote monitoring unit, such as a personal computer or smart phone. Additionally, the gateway is further operable to translate and output cellular communications from the remote monitoring unit to ISM communications over the ISM network. A wireless tethering system and method is also disclosed whereby an ISM battery places a power tool in a lock-out or limp mode after the ISM battery remains outside of ISM communications for a prolonged period of time.

Wireless tracking of power tools and related devices

An adapter for a power tool including a housing, a tool-side connector, and a battery-side connector in electrical communication with each other The tool-side connector is configured to couple to a power tool, and the battery-side connector is configured to couple to a battery pack The adapter also includes a communication interface configured to couple with an external device, and a controller The controller is configured to determine a state of the power tool, operate in a data transmission mode when the power tool is in the idle state, operate in a pass-through mode when the power tool is in the active state, and switch between the data transmission mode and the pass-through mode based on the state of the power tool

Adapter for power tool devices

An electric home appliance includes a sensing unit configured to sense whether a user's body is within a predetermined range from the electric home appliance and to determine a distance value of the user's body from the electric home appliance, an output unit configured to output information, and a controller configured to determine, from among a plurality of predetermined distance ranges, a distance range that corresponds to the distance value of the user's body from the electric home appliance and to select, from among a plurality of information output modes, an information output mode of the output unit based on the determined distance range.

Electronic home appliance and control method thereof

A power tool having multiple wireless communication states and a method of wirelessly communicating by a power tool. The power tool includes a motor, a battery pack interface that selectively receives a battery pack, a backup power source, and a wireless communication controller coupled to the backup power source and the battery pack interface. The wireless communication controller operates in a connectable state when coupled to a battery pack and transmits tool operational data to the external device and receives tool configuration data from the external device. The wireless communication controller operates in an advertisement state when the wireless communication controller is coupled to and powered by the backup power source. In the advertisement state, the wireless communication controller is configured to transmit the unique tool identifier. The external device may also display an indication of the communication state of the power tool.

Power tool and method for wireless communication

A power tool data collection system includes a memory in a housing of a power tool that stores data corresponding to at least one operational parameter of the power tool, a wireless data transceiver communicatively connected to the memory, and a controller operatively connect to the memory. The wireless data transceiver transmits the data corresponding to the at least one operational parameter of the power tool to an external wireless transceiver in response to receiving a signal from the external wireless transceiver. The controller identifies the at least one operational parameter of the power tool during operation of the power tool and stores the data corresponding to the at least one operational parameter in the memory to enable the wireless data transceiver to transmit the data.

System and metod for operational data retrieval from a power tool

An object detection system in a saw includes an electrically conductive plate positioned at a predetermined distance from the implement, a detection circuit comprising a transformer, and a single cable connecting first terminal and second terminals of the transformer. The single cable includes a first conductor electrically connected to the first terminal of the winding and to the electrically conductive plate, a second conductor electrically connected to the implement, and an electrical insulator positioned between the first conductor and the second conductor.

Electrical configuration for object detection system in a saw

A user interface device for a saw is mounted to an exterior of a housing in the saw. The user interface device includes a light emitting diode (LED) mounted on a printed circuit board (PCB), an antenna formed on the PCB, an optically opaque member with a first opening and a second opening, the first opening aligned with the LED, an optically translucent member engaging the second opening of the optically opaque member, and a base member connected to the PCB, optically opaque member, and optically translucent member, the base member being configured to be mounted to an exterior of a housing of the saw.

User interface system in a table saw

A method for detection of a fault in a sensing cable within a saw detects potential failures in a sensing cable that is part of an object detection system in the saw. The method includes generating a predetermined excitation signal transmitted through a first conductor and a second conductor in the sensing cable, detecting a return signal from the first conductor and the second conductor in the sensing cable in response to the predetermined excitation signal, identifying a signal-to-noise ratio (SNR) of the return signal, and generating an output indicating a fault in the sensing cable in response to the SNR of the return signal being below a predetermined value.

System and Method for Sensing Cable Fault Detection in a Saw

A method for detection of proximity between an object and an implement in a table saw includes operating a motor in the table saw to move the implement, generating, with a capacitive sensor formed in a throat plate around the implement in the table saw, a capacitance signal during operation of the motor, identifying, with a controller operatively connected to the capacitive sensor, an object in proximity to the capacitive sensor in response to a change in a level of capacitance in the capacitance signal, and deactivating, with the controller, the motor in the table saw in response to the change in the capacitance signal indicating a capacitance level that exceeds a predetermined threshold corresponding to a body part of an operator

Object proximity detection in a saw

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