A power tool comprising: a conductive tube; a rear unit located at a rear end of the tube; a front unit located at a front end of the tube; a battery interface comprising a plurality of terminals, wherein the battery interface is located in the rear unit; a motor located in the front unit; at least one power line for supplying power from the rear unit to the front unit, wherein at least a portion of the power line is located within the tube; and an electromagnetic interference (EMI) suppressor for suppressing EMI from the at least one power line, the EMI suppressor comprising an electrical component electrically connecting the tube to a first terminal of the plurality of terminals.

A tool for the mechanical treatment of a concrete floor, such as for power trowel floating and finishing with blades, for conducting the treatment with a hand-operated, walk-behind or ride-on actuator, such as e.g. with a concrete power trowel, a floor treating apparatus, or the like. The actuator includes one or more operating heads, which include several, such as four, attachment arms perpendicular to each other, for treating a concrete floor with tools coupled in a removable manner into the engagement with each attachment arm. A tool is intended for use in engagement with a trowel floating blade coupled to an attachment arm of the actuator's operating head, whereby the tool with a substantially flat and elongated body includes first and second elements for its coupling and locking on a quick coupling principle for im-movable engagement with the trowel floating blade.

An automated painting system that includes a robotic arm and a painting end effector coupled at a distal end of the robotic arm, with the painting end effector configured to apply paint to a target surface. The painting system can also include a computing device executing a computational planner that: generates instructions for driving the painting end effector and robotic arm to perform at least one painting task that includes applying paint, via the painting the end effector, to a plurality of drywall pieces, the generating based at least in part on obtained target surface data; and drives the end effector and robotic arm to perform the at least one painting task.

An automated painting system that includes a robotic arm and a painting end effector coupled at a distal end of the robotic arm, with the painting end effector configured to apply paint to a target surface. The painting system can also include a computing device executing a computational planner that: generates instructions for driving the painting end effector and robotic arm to perform at least one painting task that includes applying paint, via the painting the end effector, to a plurality of drywall pieces, the generating based at least in part on obtained target surface data; and drives the end effector and robotic arm to perform the at least one painting task.

A floor cleaning and polishing device has a polishing pad for a surface which is rotationally engaged upon a pad driver operatively engaged to a frame. A first set of wheels on the frame allow for tilted movement. A second set of wheels are positionable to a deployed position to elevate the first set of wheels from the surface and position the polishing pad parallel to the surface. The device may have a light projector engageable for light disinfecting. The polishing pads are configured with a plurality of polishing fabric sections separated by recesses therebetween.

A calibration device (500, 1000) for calibrating a floor surfacing system (200), the calibration device comprising at least four infrared sources (510, 520, 530, 540) arranged separated from each other on a structural member (501) according to a known geometrical configuration, where three of the infrared sources (510, 530, 540) are located in a common plane and where a fourth infrared source (520) is located distanced from the common plane along a normal vector to the common plane, wherein the calibration device (500, 1000) is arranged to be positioned at one or more locations around a perimeter of the surface to be processed in view from an nfrared vision sensor (210), whereby the infrared vision sensor may obtain images of the calibration device at the one or more locations.

A calibration device (500, 1000) for calibrating a floor surfacing system (200), the calibration device comprising at least four infrared sources (510, 520, 530, 540) arranged separated from each other on a structural member (501) according to a known geometrical configuration, where three of the infrared sources (510, 530, 540) are located in a common plane and where a fourth infrared source (520) is located distanced from the common plane along a normal vector to the common plane, wherein the calibration device (500, 1000) is arranged to be positioned at one or more locations around a perimeter of the surface to be processed in view from an nfrared vision sensor (210), whereby the infrared vision sensor may obtain images of the calibration device at the one or more locations.

A tool that attaches to an underside of a rotating floor stripper machine that includes a plurality of bracket assemblies that each contain a blade assembly. The blades are equally spaced around segments of the underside of the plate. The cutting angle of each blade is selected to have a specific angle of incidence and each blade is configured askew from the radial line of the plate. Each blade assembly further includes a suspension to absorb imbalance caused by interaction with irregular surfaces during operation to greatly smooth out the machine and improve control. Alternate forms of cutting blades are provided to remove different materials and cause smoother or coarser cuts.

A tool that attaches to an underside of a rotating floor stripper machine that includes a plurality of bracket assemblies that each contain a blade assembly. The blades are equally spaced around segments of the underside of the plate. The cutting angle of each blade is selected to have a specific angle of incidence and each blade is configured askew from the radial line of the plate. Each blade assembly further includes a suspension to absorb imbalance caused by interaction with irregular surfaces during operation to greatly smooth out the machine and improve control. Alternate forms of cutting blades are provided to remove different materials and cause smoother or coarser cuts.

A walk-behind grinder/polisher receives removably attachable wet and dry debris collection modules. These modules are substantially rigidly attached to the frame of the grinder/polisher and suspended above a floor surface so as to travel with the grinder/polisher when coupled thereto. Each debris collection module removably attaches to a vacuum producer mounted on the frame of the grinder/polisher. An engine drives a first hydrostatic pump in fluid communication with a first hydraulic motor driving the grinding/polishing head in reversible fashion. The engine further drives a second hydrostatic pump in fluid communication with a second hydraulic motor driving the vacuum producer. The dust collection module has an inlet removably attachable to the dust collection port on the shroud, and an outlet coupled to a dust collection canister. The slurry collection module has an inlet removably attachable to a squeegee, and an outlet coupled to a slurry containment vessel.