Abstract: A modular power washer contains a power washing system (10), containing a base unit (20) and an accessory unit (34), wherein the accessory unit (34) is removably-attached to the base unit (20). The base unit (20), contains a housing (22), a pump (26), a motor (24), a power source (28), an input valve (64), and an output valve (32). The housing (22), contains the pump (26), and the motor (24), therein, and the housing (22), at least partially contains the power source (28), therein. The motor (24), is operatively-connected to the power source (28). The pump (26), is operatively-connected to the motor (24). The pump (26), is fluidly-connected to the input valve (64), and the output valve (32). The accessory unit (34), is selected from a hose storage unit (68), an additive tank (88), a handle (36) a roll bar (50), a frame (72), a wheel (74), and a combination thereof. A kit and a method of use are also described herein.

Abstract: A pouch battery contains a pouch, an electrode material and a safety protection device. The electrode material is located in the pouch. The safety protection device is configured to generate an action based on a change in gas pressure within the pouch. In this way, even if the pouch battery is abnormal, its internal circuit can be cut off in time to avoid providing power to external devices while being under abnormal conditions.

Abstract: A system and method for an autonomous lawn mower comprising a mower body having at least one motor arranged to drive a cutting blade and to propel the mower body on an operating surface via a wheel arrangement, wherein the mower body includes a navigation system arranged to assist a controller to control the operation of the mower body within a predefined operating area.

Abstract: A system and method for an autonomous lawn mower comprising a mower body having at least one motor arranged to drive a cutting blade and to propel the mower body on an operating surface via a wheel arrangement, wherein the mower body includes a navigation system arranged to assist a controller to control the operation of the mower body within a predefined operating area.

Abstract: A system and method for an autonomous lawn mower comprising a mower body having at least one motor arranged to drive a cutting blade and to propel the mower body on an operating surface via a wheel arrangement, wherein the mower body includes a navigation system arranged to assist a controller to control the operation of the mower body within a predefined operating area.

Abstract: An autonomous lawn mower (100) and a system for navigating the same are disclosed. The autonomous lawn mower (100) comprises a mower body (102) having at least one motor (210) arranged to drive a cutting blade (212b) and to propel the mower body (102) on an operating surface via a wheel arrangement. The mower body (102) includes a navigation system (204) arranged to assist a controller (202) to control the operation of the mower body (102) within the predefined operating area (208). The system comprises a plurality of navigation modules (202), each arranged to obtain individual navigation information associated with the navigation of the autonomous mower (100). The navigation modules (202) operate to generate a virtual representation of the operation area (208) of the lawn mower (100) during an initialization mode, and the virtual representation of the operation area (208) is processed with the obtained navigation information during the operation of the lawn mower (100).

Abstract: A carburetor includes a body and a fuel bowl coupled to the body. A fuel bowl chamber is defined by the body and the fuel bowl. A fuel supply passageway fluidly couples a fuel supply inlet of the carburetor with the fuel bowl chamber. A fuel metering unit is coupled to the body of the carburetor. A first filter is disposed in one of the fuel supply passageway and the fuel bowl chamber, and a second filter is disposed in the fuel metering unit.

Abstract: A blower including a housing at least partially defining a chamber, a motor including a drive shaft defining a rotational axis, an impeller driven by the motor to generate an air flow in the chamber, and a coupler operably connected between the drive shaft and the impeller. The chamber may have an axial height which increases from a position proximate a back plate to a position spaced from the back plate. The chamber may have a non-circular cross-section proximate a chamber outlet, and a tube assembly in fluid communication with the chamber may have a tube inlet with a non-circular cross-section. The impeller may define two separate airflow paths each having an inlet and an outlet.

Abstract: A power sweeper has a handle having a first end graspable by a user and a second end, a drive shaft extending along the handle, and a power head coupled to the handle to rotate the drive shaft. A gear box is coupled to the drive shaft adjacent the second end, and a brush is coupled to the gear box for rotation in response to rotation of the drive shaft. The power sweeper includes an axle, and first and second wheels coupled to the axle. A shield is coupled to the gear box and defines an aperture through which the handle extends. The axle is moveable with respect to the shield and the brush to adjust an angle between the handle and the ground surface.

Abstract: A brushless motor includes a stator (26) having six slots (30), and a rotor having two poles. The rotor is adapted to rotate with respect to the stator. By adopting a 6-slots-2-poles structure, the brushless motor effectively reduces operational noise due to iron loss and unbalanced pull. As a result, the working life of the motor can be improved.

Abstract: Trigger pull tracking, charge time estimation, and other features for a power tool battery pack with wireless communication. A battery pack system includes a power tool battery pack and a processor. The battery pack includes a plurality of cells and a voltage sensor connected to the plurality of cells. The processor is in communication with the voltage sensor that detects a voltage across the plurality of cells using the voltage sensor. The processor further converts the voltage across the plurality of cells to a state of charge; determines a charge rate of a charger charging the battery pack; and determines a conversion factor based on the charge rate. The processor then generates a time to full charge of the battery pack based on the state of charge and the scalar conversion factor. The processor may further generate current traces for the battery pack.

Abstract: A power tool which contains a casing, a brushless motor (22) mounted inside the casing, a user actuated switch (38) mounted on the casing, and a circuit board (32) mounted inside the casing. The brushless motor (22) is adapted to drive one or more movable parts in the power tool. The circuit board (32) is mechanically connected to the brushless motor (22) and the switch (38) at the same time. As only a single, integrated circuit board (32) is configured in the power tool, the manufacturing cost is reduced and greater reliance and electrical safety can be achieved.

Abstract: A fence assembly for a table saw includes a primary fence including a first elongated body having a first body first side, a first body second side, a first body top side, and a first body bottom side, and a first height measured between the first body top side and the first body bottom side. A secondary fence is pivotally mounted to the primary fence and pivotable between a deployed position adjacent one of the first body first side or the first body second side, and a stowed position adjacent the other of the first body first side or the first body second side. The secondary fence includes a second elongated body having a second body top side and a second body bottom side, and a second height measured between the second body top side and the second body bottom side. The second height is less than the first height.

Abstract: A pneumatic fastener driver is operable in a single sequential mode and a bump-fire mode. The pneumatic fastener driver includes a housing, a nosepiece extending from the housing from which fasteners are ejected, and a trigger moveable between a default position, in which a drive cycle is inhibited from initiating, and a depressed position, in which the drive cycle is permitted to be initiated. The pneumatic fastener driver further includes a contact arm movable relative to the nosepiece between an extended position and a retracted position, and a timeout mechanism operable in the bump-fire mode to inhibit the drive cycle from being initiated in response to inactivity of the contact arm over a preset time interval that begins once the trigger is actuated from the default position to the depressed position.

Abstract: A miter saw includes a base, a table pivotally coupled to the base about a miter axis, and a saw unit coupled to the table for movement about the miter axis. A workpiece support is pivotable relative to the base between a first position, in which the table is permitted to pivot about the miter axis within a first range of miter angles, and a second position, in which the table is permitted to pivot about the miter axis within a second range of miter angles different than the first range. The miter saw further includes a locking mechanism for maintaining the workpiece support in at least one of the first position or the second position, wherein the locking mechanism includes an actuator supported by and moveable with the workpiece support between the first position and the second position.

Abstract: A powered fastener driver includes a magazine configured to receive fasteners, a pusher slidably coupled to the magazine, a nosepiece coupled to the magazine, and a workpiece contact element movable with respect to the nosepiece. The powered fastener driver further includes a lockout member pivotally coupled to the nosepiece, and a magnet exerting a magnetic force on the lockout member to bias the lockout member toward a first position. The pusher moves the lockout member to a second position where the lockout member blocks movement of the workpiece contact element when a predetermined number of fasteners remain in the magazine.

Abstract: A saw stand includes a table having a saw support surface, a plurality of legs pivotally coupled to the table, the legs movable relative to the table to define a first configuration, a second configuration, and a third configuration of the saw stand, and a latch mechanism. The latch mechanism includes a latch element movable between a latched position and an unlatched position. The latch mechanism is configured to inhibit movement of each of the legs relative to the table when the latch element is in the latched position and the saw stand is in the third configuration.