Abstract: A vacuum cleaner includes a housing having a suction nozzle opening, a source of suction in fluid communication with the suction nozzle opening for generating a working air stream through the housing, and a multiply-adjustable debris collecting blade coupled along the rear of the suction nozzle opening for collecting debris.

Abstract: A lid system for a wet-dry vacuum includes a lid shaped to cover an open end of a container and having a vacuum opening therethrough, and a hatch that engages the lid to cover and seal the vacuum opening when in a closed position and disengages from the lid in an open position to uncover the vacuum opening. A vacuum generator is mounted on the hatch, and a flanged filter is mounted on the lid and extends through the vacuum opening such that the flange supports the filter on the lid. When the hatch is in the closed position, the hatch compresses the flange against the lid to form an airtight seal between with the upper surface of the lid, and the vacuum generator communicates with the interior of the container. When the hatch is in the open position, the filter is insertable into and removable from the vacuum opening.

Abstract: A grinding apparatus includes a first grinding mechanism, a second grinding mechanism, and a third grinding mechanism for grinding wafers held on respective chuck tables. The first grinding mechanism and the second grinding mechanism are positioned with respect to the chuck tables such that a second ground mark produced on a wafer by second grindstones of the second grinding mechanism as it grinds the wafer extends across a first ground mark produced on the wafer by first grindstones of the first grinding mechanism as it grinds the wafer. The second grinding mechanism and the third grinding mechanism are positioned with respect to the chuck tables such that a third ground mark produced on the wafer by third grindstones of the third grinding mechanism as it grinds the wafer extends across the second ground mark produced on the wafer by the second grindstones.

Abstract: A flex head tool includes a first body and a second body and a. retaining device adapted to position the second body at various angular positions with respect to the first body. The retaining device includes a retainer and an actuator adapted to move the retainer in a first position and a second position. The retainer and the actuator respectively have a first interacting structure and a second interacting structure abutting each other. The second interacting structure has a first and a second position at which the first interacting structure respectively abuts when the actuator is at a first position and a second position. The first and the second positions of the second interacting structure are at different distances from the end of the actuator.

Abstract: An angle grinder includes a housing, an output shaft at least partially extending out of the housing and being rotatable about a first axis relative to the housing, a sleeve fixedly connected to the housing, a first shield surrounding the output shaft and detachably connected to the sleeve, a second shield surrounding at least a part of the first shield and detachably connected to the first shield, and a connector configured for connecting the second shield to the first shield. The second shield is formed or connected with a mounting element for cooperating with the connector, and the connector and the mounting element are separately formed.

Abstract: The invention relates to a vacuum cleaning device, including a body, a dust cup, and an unlocking mechanism for unlocking and locking the dust cup. The body is provided with a vacuum cleaning channel, a filter is provided in the dust cup, the unlocking mechanism is configured to have a locking state and an unlocking state, and when the unlocking mechanism is in the locking state, the dust cup and the body are locked together in a sealing manner, and the vacuum cleaning channel is in communication with the filter and the dust cup such that the filter and the dust cup are in a working state; and when the unlocking mechanism is in the unlocking state, the dust cup and the filter are automatically disengaged from the vacuum cleaning channel to an easy-to-take state.

Abstract: A sanding machine, in particular for processing wood surfaces, includes a support and transport plane for the forwarding of the workpieces to be processed; and a belt sanding unit with a transverse abrasive belt inside which a pressure pad is arranged obliquely. The pressure pad is divided into a plurality of pressure elements which can be actuated individually and are controlled by respective sensors that constitute a control beam. Methods are described for compensating the different distances between sensor and respective pressure elements that avoid adaptations of the position of the workpiece to be processed, in particular if the machine contains further non inclined processing units. The sanding machine is particularly suitable even for the processing of large workpieces.

Abstract: A surface cleaning apparatus including a body defining an agitation chamber, an agitator partially disposed within the agitation chamber and configured to rotate about a pivot axis, and a debrider at least partially disposed within the agitation chamber. The agitator includes an elongated body having a first and a second end, a sidewall extending radially outward from the elongated body extending between the first and the second ends, and a plurality of bristles extending radially outward from the elongated body. The plurality of bristles are arranged in at least one row adjacent to the sidewall. The debrider includes a plurality of teeth configured to contact a portion of the sidewall as the agitator rotates about the pivot axis.

Abstract: The present invention is a full-mouth toothbrush apparatus. The full-mouth toothbrush apparatus comprises a housing, a pair of brush tines, a set of brush connectors, and a set of brush inserts. The set of brush connectors comprises a pair of first brush connectors and a second brush connector. The pair of brush tines is terminally connected adjacent to the housing. The set of brush connectors is distributed about the pair of brush tines. The pair of first brush connectors is terminally distributed along the pair of brush tines. The pair of first brush connectors is hingedly connected along the pair of brush tines. The second brush connector is slidably connected along the pair of brush tines. The second brush connector is positioned between the housing and the first pair of first brush connectors.

Abstract: A flush valve installation tool and associated method is used to install and uninstall chrome flush valves. The installation tool is capable of installing and uninstalling nuts of a variety of sizes without causing damage to the surfaces of the nuts. The flush valve installation tool has opposing first and second members coupled together by a pin or bolt. The first and second members each have two or more smooth jaw faces configured to engage 4 or 5 surfaces of a nut to be installed or uninstalled. The flush valve installation tool can be adjusted to select the distance between opposing jaw faces to accommodate different sized nuts.

Abstract: Embodiments of the present invention described herein relate to vacuum cleaners. The vacuum cleaners described herein can include a motor, a lid, a collection receptacle, and at least one support member to permit access to the interior of the vacuum cleaner. Also described herein are vacuum cleaners having a motor, a lid, a collection receptacle, and an accessory holder that can be pivotally mounted to the collection receptacle to permit access to the contents thereof.

Abstract: A pawl mechanism with a bias member that biases the pawl into engagement with the drive gear. The bias member can be a tube spring disposed within a bore to bias the pawl into engagement with the drive gear while eliminating the need for a spacer, as required by prior art ratchet wrenches.

Abstract: Provided are a polishing method that can be commonly applied to different types of silicon substrates varying in resistivity as well as a polishing composition set used in the polishing method. The silicon substrate polishing method provided by this invention comprises supplying a first polishing slurry S1 and a second polishing slurry S2 to a silicon substrate to be polished, switching them in this order midway through polishing the silicon substrate. The first polishing slurry S1 comprises an abrasive A1 and a water-soluble polymer P1. The polishing removal rate of the first polishing slurry S1 is higher than that of the second polishing slurry S2.

Abstract: Vacuum cleaning devices include foldable wands to provide a storage configuration and/or facilitate use. A vacuum cleaning device includes a wand having a first end coupled to a vacuum unit and a second end coupled to a vacuum head or surface cleaning head. The wand defines an air passage allowing air to pass from the surface cleaning head to the vacuum unit and includes a flexible air passage along at least a portion of the wand. The wand also includes a plurality of segments pivotably connected together such that the wand is foldable about 180° in a forward direction until the vacuum unit is positioned proximate a top of the surface cleaning head, thereby providing a storage configuration.

Abstract: A surface cleaning apparatus includes a surface cleaning head having a dirty air inlet and an upper section mount and an upper portion moveably mounted to the upper section. The upper portion includes a wand. A portable surface cleaning unit is removably mounted to the upper portion. An air flow path extends from the dirty air inlet to a clean air outlet and includes an upstream portion comprising the wand and a flexible air flow conduit downstream of the wand. Each of the wand and the portable cleaning unit can be separately removable from the upper section mount.

Abstract: A cleaner head is provided. The cleaner head includes: a nozzle; a case disposed close to an inlet of the nozzle; and a brush rotatably disposed in the case, wherein the case includes an air passage groove disposed in an outer side surface of the case and having a passage formed for the air to flow from an edge region of the case toward a surface to-be-cleaned.

Abstract: A surface cleaning apparatus includes an upright body and a base adapted for movement across a surface to be cleaned, a fluid delivery system, and a recovery system. The surface cleaning apparatus can be configured to clean multiple surfaces, including hard and soft surfaces, and for different cleaning modes, including wet cleaning, dry vacuum cleaning, and self-cleaning. Methods for self-cleaning a surface cleaning apparatus are also provided.

Abstract: A portable power tool includes an electric motor having a motor shaft, an output shaft arranged in parallel to the motor shaft and configured to be driven by rotation of the motor shaft, a tool accessory operably connected to the output shaft and configured to undergo an orbital and/or rotational motion in response to rotation of the output shaft, a first bearing that rotatably supports the output shaft, and a second bearing that rotatably supports the output shaft and is arranged closer to the tool accessory than the first bearing in an axial direction in which the output shaft extends. The first and second bearings are arranged at positions that do not overlap with a radially outermost one of components of the electric motor when viewed in a shaft arrangement direction in which the motor shaft and the output shaft are arranged in parallel.

Abstract: A cleaning device comprises a surface interaction layer (ML), a cleaning fluid supply (CFF) provided with a cleaning fluid channel (CFC) at the surface interaction layer (ML) for supplying a cleaning fluid to a surface (F) through the surface interaction layer (ML) being in contact with the surface (F), and a dirty fluid drain (DFD) having a dirty fluid channel (DFC) at the surface interaction layer (ML) for draining, by means of underpressure, dirty water from the surface (F) through the surface interaction layer (ML) being in contact with the surface (F).

Abstract: A surface cleaning apparatus has a cyclone. The cyclone air inlet is provided at a first juncture of the cyclone sidewall and an end wall of the cyclone chamber. The cyclone also has a vortex finder that is provided on the end wall. The vortex finder has a vortex sidewall that meets the first end wall at a second juncture. The vortex sidewall is spaced radially inwardly from the cyclone sidewall by a radial distance that is greater than the width of the air inlet. One of the first and second junctures is rounded.