Abstract: A cleaner includes: a suction unit; a suction motor that generates suction force for sucking air through the suction unit and includes an impeller; a dust separation unit that includes one or more cyclone units generating cyclonic flow to separate dust from air flowing inside through the suction unit; a dust container that stores dust separated by the dust separation unit and is disposed under the suction motor; a battery disposed behind the dust container to supply power to the suction motor; and a handle disposed behind the suction motor, wherein a rotational axis of the impeller and an axis of the cyclonic flow vertically extend and an extension line from the rotational axis of the impeller passes through the one or more cyclone units.

Abstract: A robot that includes a cleaning head including a first cleaning roller comprising a first sheath comprising a first shell and a first plurality of vanes extending along the first shell and extending radially outward from the first shell, the first shell tapering from end portions of the first sheath toward a center of the first cleaning roller, and the first plurality of vanes having a uniform height relative to a first axis of rotation of the first cleaning roller; and a second cleaning roller comprising a second sheath comprising a second shell and a second plurality of vanes extending along the second shell and extending radially outward from the second shell, the second shell being cylindrical along an entire length of the second cleaning roller, and the second plurality of vanes having a uniform height relative to a second axis of rotation of the second cleaning roller.

Abstract: An abrasive rotary tool includes a tool shank a flexible planar section positioned opposite the tool shank. The flexible planar section forms a first abrasive external surface on a first side of the flexible planar section and a second abrasive external surface on a second side of the flexible planar section. The flexible planar section facilitates abrading, corners of a workpiece across multiple angles relative to the axis of rotation for the rotary tool through bending of the flexible planar section when the abrasive external surfaces are applied to a corner of the workpiece.

Abstract: A grinding wheel assembly is disclosed and includes an arbor in which a pull stud may be installed. Further, the arbor can include a head assembly that includes a mounting plate, a cover plate, and an abrasive body disposed there between. The abrasive is removably engaged with the mounting plate and the cover plate.

Abstract: A laminated foam mop head which includes a foam block having a top surface, a bottom surface, and two side surfaces, a fabric material laminated to the bottom and side surfaces of the foam block, and a bracket attached to the top surface of the foam block such that the bottom and side surfaces of the foam block are drawn upward and inward to form a mop head having an elliptical shaped cross section and the top surface of the foam block is pushed inward and not exposed.

Abstract: A method and device for cutting materials for manufacturing parts according to which an image of a cutting line is made recurrently downstream from a cutting head. The images produced are analyzed in real time to calculate amplitudes of deviations in the quality of the surface profiles of the cutting line as the part is being cut and comparing the calculated amplitudes to at least one predefined threshold value. The cutting is stopped in the event of the at least one threshold value being exceeded.

Abstract: A sanding block adapted for abrading a surface, particularly drywall joints, comprising: (a) a body having an array of elongated raised portions having raised end surfaces and recessed portions, the raised end surfaces collectively defining an abrasive working surface and the recessed portions defining channels between adjacent raised portions; (b) a make coat on the end surfaces; and (c) abrasive particles at least partially embedded in the make coat. Also methods of using such sanding blocks.

Abstract: Disclosed are a process and apparatus for polishing a glass article (1201). The polishing process comprises bringing a rotating article (1201) to be polished into contact with various centrifugally outspread flexible flaps of a rotating flexible flap grinding wheel (1101), with a grinding wheel (1101) rotation shaft being parallel to an article (1201) rotation shaft; and pneumatically controlling the feed of the flexible flap grinding wheel (1101) relative to the surface of the article (1201) to be polished, such that the outer edges of the flaps of the flexible flap grinding wheel (1101) are in pressure contact with the surface to be polished of the article (1201) to be polished, and polishing same. This polishing process can restore a worn glass bottle, particularly a glass bottle having a profiled contour, to the extent that same looks like new at a lower cost. The corresponding polishing apparatus can realize automatic and continuous grinding polishing of worn glass bottles.

Abstract: A cleaning assembly for cleaning a surface includes a plurality of first panels. The first panels are stacked on top of each other. Each of the first panels is comprised of a deformable material thereby facilitating each of the first panels clean a surface. A coupler is provided that selectively engages a finger. The coupler is coupled to each of the first panels thereby facilitating the plurality of first panels to be manipulated to clean the surface.

Abstract: Disclosed is a double hair cosmetic brush. The double hair cosmetic brush of the present invention includes a brush body; a first brush hair portion provided at one side of the brush body; and a second brush hair portion provided on the brush body to surround a border of the first brush hair portion, in which a receiving groove in which the cosmetic is received is provided in at least one of the first brush hair portion and the second brush hair portion and the hair of the second brush hair portion is thinner than the hair of the first brush hair portion.

Abstract: A surface treatment method is provided that is capable of raising the slidability of a ceramic surface at low cost using a comparatively simple method. Dimples are formed on a surface of a treatment region, this being a portion of a ceramic surface where surface treatment is to be performed, by ejecting substantially spherical ejection particles having a median diameter of from 1 ?m to 20 ?m, together with compressed gas at an ejection pressure of from 0.01 MPa to 0.7 MPa, so as to achieve a value of a fastest decay autocorrelation length of not less than 10. The dimples are formed so as to have a plan view profile with a ratio between a horizontal Feret diameter and a vertical Feret diameter of from 0.7 to 1.43. Thereby a ceramic surface with improved slidability can be obtained regardless of use or non-use of a lubricant.

Abstract: A robot cleaner comprising: a cleaner body including a controller, the cleaner body having a dust container accommodation part formed therein; a wheel unit mounted in the cleaner body, the wheel unit of which driving is controlled by the controller; and a dust container detachably coupled to the dust container accommodation part, wherein a first opening and a second opening are disposed at the same height in an inner wall of the dust container accommodation part, wherein the dust container includes: an entrance and an exit, disposed side by side along the circumference of the dust container, the entrance and the exit, respectively communicating with the first opening and the second opening when the dust container is accommodated in the dust container accommodation part; and a flow separating part extending downwardly inclined along the inner circumference of the dust container, the flow separating part separating the flow of air introduced into the entrance from the flow of air discharged toward the exit to b

Abstract: An upper spin chuck and a lower spin chuck are arranged in a vertical direction. In the lower spin chuck, a substrate holder sucks a center portion of a lower surface of a substrate, so that the substrate is held. In this state, a peripheral portion of the lower surface of the substrate rotated by a spin motor is cleaned by a brush of a first back surface cleaning mechanism. In the upper spin chuck, a plurality of chuck pins abut against an outer peripheral end of the substrate, so that the substrate is held. In this state, a region inward of the peripheral portion of the lower surface of the substrate rotated by the spin motor is cleaned by a brush of a second back surface cleaning mechanism. Receiving and transferring of the substrate are performed by a receiving transferring mechanism between the upper and the lower spin chucks.

Abstract: The invention relates to a cleaning device for the dry cleaning of a tunnel, comprising a feeding device for feeding a flow of air to a surface being cleaned, wherein the feeding device has an exit opening, through which the flow of air emerges from the feeding device, and a removal device comprising at least one removal pipe with a free end with an opening for suctioning away direct or trash from the surface with the opening of the free end in a first direction. The feeding device is arranged such that the flow of air from the exit opening emerges from the feeding device in a second direction toward the opening of the free end of the removal pipe and impinges on the surface. The first direction is oriented at an angle between 45° and 80° to the second direction.

Abstract: A polishing method capable of polishing a substrate, such as a wafer, with low running costs is disclosed. A polishing method includes: rotating a substrate while holding a back-side surface of the substrate with a vacuum suction stage; rotating a polishing head holding a plurality of polishing tools; and polishing a front-side surface of the substrate by pressing the plurality of polishing tools, which are rotating, against the front-side surface of the substrate. The front-side surface is a surface on which interconnect patterns are to be formed.

Abstract: An annular grinding stone is provided which includes a cutting edge with a plurality of V-shaped slits defined in an outer circumferential portion thereof is provided. Each of the V-shaped slits is defined by a first surface and a second surface of the annular cutting edge. The first surface is positioned rearwardly of the second surface with respect to a direction along which the annular grinding stone rotates, and the second surface is positioned forwardly of the first surface with respect to the direction along which the annular grinding stone rotates. The first surface lies perpendicularly to the direction along which the annular grinding stone rotates at a radially outer end thereof and parallel to thicknesswise directions of the annular cutting edge. The second surface is inclined with respect to the first surface at an angle ranging from 30° to 60°.

Abstract: A robot cleaner comprising: a cleaner body including a controller, the cleaner body having a dust container accommodation part formed therein; a wheel unit mounted in the cleaner body, the wheel unit of which driving is controlled by the controller; and a dust container detachably coupled to the dust container accommodation part, wherein a first opening and a second opening are disposed at the same height in an inner wall of the dust container accommodation part, wherein the dust container includes: an entrance and an exit, disposed side by side along the circumference of the dust container, the entrance and the exit, respectively communicating with the first opening and the second opening when the dust container is accommodated in the dust container accommodation part; and a flow separating part extending downwardly inclined along the inner circumference of the dust container, the flow separating part separating the flow of air introduced into the entrance from the flow of air discharged toward the exit to b

Abstract: A floor brush for using with floor cleaning equipment and, more specifically, a brush head (1) having distinct zones of varying bristle tuft (41) arrangements and configurations is provided. The brush head (1) is adapted for detachable connecting to a floor maintenance machine which is utilized for cleaning, burnishing, buffing and polishing a work surface such as a floor or the like.

Abstract: A robot cleaner comprising: a cleaner body including a controller, the cleaner body having a dust container accommodation part formed therein; a wheel unit mounted in the cleaner body, the wheel unit of which driving is controlled by the controller; and a dust container detachably coupled to the dust container accommodation part, wherein a first opening and a second opening are disposed at the same height in an inner wall of the dust container accommodation part, wherein the dust container includes: an entrance and an exit, disposed side by side along the circumference of the dust container, the entrance and the exit, respectively communicating with the first opening and the second opening when the dust container is accommodated in the dust container accommodation part; and a flow separating part extending downwardly inclined along the inner circumference of the dust container, the flow separating part separating the flow of air introduced into the entrance from the flow of air discharged toward the exit to b

Abstract: A wood sander for sanding a target object. The wood sander comprises a frame, an upper assembly, a lower assembly, a drive system and a plurality of sandpaper sheets. The drive system is configured for pulling the plurality of sandpaper sheets through a path. The path is configured to cause the plurality of sandpaper sheets to touch a portion of the target object as the drive system rotates the plurality of sandpaper sheets. The upper assembly comprises the drive system, and the plurality of sandpaper sheets. The lower assembly comprises a platform configured to hold the target object. The upper assembly and the lower assembly are attached to and supported by the frame.