A blower apparatus includes a motor including a rotor including a shaft extending along a vertically extending central axis, and a stator opposing the rotor in a radial direction, an impeller below the stator and fixed to the shaft, and a housing surrounding an outer side of the impeller in the radial direction. The impeller includes a base portion that widens in a direction intersecting the central axis, and blades arranged on an upper surface of the base portion along a circumferential direction. An annulus is fixed to an upper end portion of the shaft.

A blower apparatus includes a motor including a rotor including a shaft extending along a vertically extending central axis, and a stator opposing the rotor in a radial direction, an impeller below the stator and fixed to the shaft, and a housing surrounding an outer side of the impeller in the radial direction. The impeller includes a base portion that widens in a direction intersecting the central axis, and blades arranged on an upper surface of the base portion along a circumferential direction. An annulus is fixed to an upper end portion of the shaft.

There is provided a cleaning nozzle that cleans a cleaning target face that is one of a holding face that holds a workpiece and/or a surface of the workpiece held on the holding face. The cleaning nozzle includes an air nozzle having an jet port for jetting air toward the cleaning target face and extending in a direction parallel to the cleaning target face, and a suction nozzle having a suction port for sucking air on the cleaning target face and arranged adjacent to and in parallel to the air nozzle.

There is provided a cleaning nozzle that cleans a cleaning target face that is one of a holding face that holds a workpiece and/or a surface of the workpiece held on the holding face. The cleaning nozzle includes an air nozzle having an jet port for jetting air toward the cleaning target face and extending in a direction parallel to the cleaning target face, and a suction nozzle having a suction port for sucking air on the cleaning target face and arranged adjacent to and in parallel to the air nozzle.

A cleaning device including a covering hood having a lower surface facing a surface to be cleaned and an inlet on an upper surface thereof, through which contaminants are sucked; an air knife provided on a circumference of the covering hood and having an outlet for spraying high pressure air to the surface to be cleaned; a sweeper installed inside the covering hood and rotated by a driving motor to guide foreign objects swept away from the surface to be cleaned and contaminants floated by the high pressure air injection of the air knife to the inlet; a rotary member including a shaft passing through a circumferential surface of the covering hood and the air knife, and a rotary knob coupled to one end of the shaft to rotate the air knife to adjust an air spray angle.

A cleaning device including a covering hood having a lower surface facing a surface to be cleaned and an inlet on an upper surface thereof, through which contaminants are sucked; an air knife provided on a circumference of the covering hood and having an outlet for spraying high pressure air to the surface to be cleaned; a sweeper installed inside the covering hood and rotated by a driving motor to guide foreign objects swept away from the surface to be cleaned and contaminants floated by the high pressure air injection of the air knife to the inlet; a rotary member including a shaft passing through a circumferential surface of the covering hood and the air knife, and a rotary knob coupled to one end of the shaft to rotate the air knife to adjust an air spray angle.

A brushless vacuum device may include a vacuum head having a bottom side, a first and second exterior wall, a front end, and a back end. The first exterior wall and second exterior wall may be positioned on the bottom side and may be coupled together at the front end. A suction aperture may be positioned proximate to the front end. A first plurality of jets may extend along the first exterior wall between the suction aperture and the back end. A second plurality of jets may extend along the second exterior wall between the suction aperture and the back end. A suction conduit may be in communication with the suction aperture and may generate negative air pressure in the suction aperture. A pressure conduit may generate a positive air pressure in the first plurality and second plurality of jets. Air exiting the jets may be collected by the suction aperture.

A brushless vacuum device may include a vacuum head having a bottom side, a first and second exterior wall, a front end, and a back end. The first exterior wall and second exterior wall may be positioned on the bottom side and may be coupled together at the front end. A suction aperture may be positioned proximate to the front end. A first plurality of jets may extend along the first exterior wall between the suction aperture and the back end. A second plurality of jets may extend along the second exterior wall between the suction aperture and the back end. A suction conduit may be in communication with the suction aperture and may generate negative air pressure in the suction aperture. A pressure conduit may generate a positive air pressure in the first plurality and second plurality of jets. Air exiting the jets may be collected by the suction aperture.

An air gun in combination with a vacuum source is powered by pressurized gas that is received through a gas inlet. The air gun and the vacuum source are configured to be simultaneously operable using the pressurized gas, which provides a method for conveniently air cleaning various objects.

An air gun in combination with a vacuum source is powered by pressurized gas that is received through a gas inlet. The air gun and the vacuum source are configured to be simultaneously operable using the pressurized gas, which provides a method for conveniently air cleaning various objects.