A fume extractor has an extractor housing (110, 210) defining an outlet (106, 206). A hose (120, 220) is coupled to the extractor housing that defines a first inlet (102, 202). A diffusion plate (130, 230) is coupled to the extractor housing that defines a plurality of openings (132, 232) cumulatively defining a second inlet (104, 204). A fan (280, 530) is disposed in the extractor housing, where the fan configured to connect each of the first inlet and the second inlet to the outlet. A first supporting surface (160) is opposite the diffusion plate relative to the extractor housing and a second supporting surface (170) at least 80° to the diffusion plate, where the first supporting surface and the second supporting surface are configured to selectively rest on a planar surface. The fume extractor defines a hose channel (140) configured to selectively receive the hose.

A fume extractor has an extractor housing (110, 210) defining an outlet (106, 206). A hose (120, 220) is coupled to the extractor housing that defines a first inlet (102, 202). A diffusion plate (130, 230) is coupled to the extractor housing that defines a plurality of openings (132, 232) cumulatively defining a second inlet (104, 204). A fan (280, 530) is disposed in the extractor housing, where the fan configured to connect each of the first inlet and the second inlet to the outlet. A first supporting surface (160) is opposite the diffusion plate relative to the extractor housing and a second supporting surface (170) at least 80° to the diffusion plate, where the first supporting surface and the second supporting surface are configured to selectively rest on a planar surface. The fume extractor defines a hose channel (140) configured to selectively receive the hose.

A manual laser cleaning device for removing foreign matter present on the surface of a workpiece according to an embodiment includes a laser generator oscillating a laser beam, a controller controlling the laser generator, and a laser cleaning head receiving the laser beam emitted from the laser generator through an optical fiber and irradiating a surface of a workpiece with the received laser beam. The laser cleaning head includes a head housing having a handle, a collimator placed in the head housing and collimating the laser beam scattered at one end of the optical fiber into parallel light, a high-speed Galvano scanner scanning the laser beam transmitted through the collimator at high speed using a mirror mounted on a scanning motor, and a focal lens focusing the laser beam scanned by the high-speed Galvano scanner at a focal distance and irradiating the surface of the workpiece with the laser beam.

A manual laser cleaning device for removing foreign matter present on the surface of a workpiece according to an embodiment includes a laser generator oscillating a laser beam, a controller controlling the laser generator, and a laser cleaning head receiving the laser beam emitted from the laser generator through an optical fiber and irradiating a surface of a workpiece with the received laser beam. The laser cleaning head includes a head housing having a handle, a collimator placed in the head housing and collimating the laser beam scattered at one end of the optical fiber into parallel light, a high-speed Galvano scanner scanning the laser beam transmitted through the collimator at high speed using a mirror mounted on a scanning motor, and a focal lens focusing the laser beam scanned by the high-speed Galvano scanner at a focal distance and irradiating the surface of the workpiece with the laser beam.

According to one embodiment, a cleaner head includes a first rotor, a second rotor, and a contact surface. The first rotor can be rotationally driven in a state where an outer peripheral surface of the first rotor is in contact with a sheet that includes organic fiber and is formed on a base, and can remove a part of the sheet from the base. The second rotor is arranged next to the first rotor in a direction along a rotation axis of the first rotor, and is rotated together with the first rotor in a state where the second rotor is not in contact with the sheet. The contact surface is in contact with an outer peripheral surface of the second rotor at a position away from the sheet around the rotation axis.

A method for manufacturing a structure on a surface of a workpiece (1) is disclosed, the method having the following steps: applying a liquid base layer (2) onto the surface of the workpiece (1); spraying on at least one droplet (3) into the not yet congealed base layer (2), wherein the at least one droplet (3) at least partially, preferably completely, penetrates into the base layer (2); fixing the base layer (2); and at least partially removing the at least one droplet (3). Further, a second method having the following steps is disclosed: spraying on at least one droplet (3) onto the surface of the workpiece (1); applying a liquid base layer (2) onto the surface of the workpiece (1), wherein the base layer (2) flows around the at least one droplet (3) and preferably at least partially covers the at least one droplet (3); fixing the base layer (2); at least partially removing the at least one droplet (3). Finally, a device for performing the methods is disclosed.

A dust collector apparatus includes a housing, an airflow generation module and a filter. The housing has one side formed at least one intake vent-hole and another side formed of at least one exhaust vent-hole. An inner side of the housing has an airflow channel formed between the intake vent-hole and the exhaust vent-hole. The airflow generation module comprises an airflow drawing unit for drawing an airflow in order to form the airflow channel between the intake vent-hole and the exhaust vent-hole, a control module for controlling the airflow drawing unit, and a power module. The filter is detachably arranged at the intake end and used for filtering dust in the air sucked by the airflow drawing unit. The dust collector apparatus of the present invention allows the dust particles to be properly collected by the filter without secondary scattering, and guides the airflow to be exhausted smoothly.

A dust collector apparatus includes a housing, an airflow generation module and a filter. The housing has one side formed at least one intake vent-hole and another side formed of at least one exhaust vent-hole. An inner side of the housing has an airflow channel formed between the intake vent-hole and the exhaust vent-hole. The airflow generation module comprises an airflow drawing unit for drawing an airflow in order to form the airflow channel between the intake vent-hole and the exhaust vent-hole, a control module for controlling the airflow drawing unit, and a power module. The filter is detachably arranged at the intake end and used for filtering dust in the air sucked by the airflow drawing unit. The dust collector apparatus of the present invention allows the dust particles to be properly collected by the filter without secondary scattering, and guides the airflow to be exhausted smoothly.

The gate housing has a flow passage therethrough, the flow passage having an inlet and an outlet. The gate housing also includes a gate pocket configured to receive a blast gate and to allow the blast gate to slide therein between an open position and a closed position. The magnetic brake element is on the gate housing and includes a magnet mounted to the gate housing such that a magnetic force of the magnet extends into the gate pocket.

The gate housing has a flow passage therethrough, the flow passage having an inlet and an outlet. The gate housing also includes a gate pocket configured to receive a blast gate and to allow the blast gate to slide therein between an open position and a closed position. The magnetic brake element is on the gate housing and includes a magnet mounted to the gate housing such that a magnetic force of the magnet extends into the gate pocket.