Abstract: A guard for a rotatable wheel of a power tool is disclosed. The guard comprises a shroud which is configured to partially enclose the wheel and a port disposed at a circumferential position on the shroud, via which debris generated by the wheel during use can exit the shroud. The shroud comprises a radii of curvature which increases between a first angular position and a second angular position, relative to a rotational axis of the wheel, in a direction comprising a rotational direction of the wheel.

Abstract: A dust collecting treatment apparatus is connected to a dry type polishing apparatus, sucks dust-containing air from the dry type polishing apparatus, and separates the dust and the air from each other. The apparatus includes a cylindrical main body connected to the dry type polishing apparatus; a suction box disposed on an upper plate of the cylindrical main body, a suction source connected to the suction box through a ventilating duct, a filter unit that includes a flange section supported on the upper plate of the cylindrical main body, a pipe formed integrally with the flange section and formed of a plurality of minute holes, and a filter formed of a water-soluble material and externally fitted to the pipe in a detachable manner. The filter is disposed inside the cylindrical main body. A water jet nozzle is disposed inside the suction box and jets water into the filter unit.

Abstract: A surface cleaning apparatus is disclosed having a forward portion and a rearward portion. The forward portion has a dirty air inlet, a front side, a rear side and a forward bridging section, the forward bridging section having a rearwardly extending air flow passage that is downstream from the dirty air inlet. The rearward portion positioned rearward of the forward portion, the rearward portion comprising a front side, a rearward side, a rearward bridging section, a lower planar surface, an upper surface and an up flow duct, the rearward bridging section being spaced rearward of the front side of the rearward portion. The rear side of the forward portion is spaced from and faces the front side of the rearward portion and the forward bridging section is connected to the rearward bridging section.

Abstract: A dust removal assembly for use with a disc grinder includes a base portion with a member defining a major surface, a wall extending at least partially along an outer periphery of the major surface, an exhaust port contained within the wall, and a first ledge positioned proximate the exhaust port extending along the major surface. A top plate, attachable to the wall, includes a second ledge extending downward from a lateral edge toward the base portion such that the first ledge and the second ledge are positioned proximate to, and extend horizontally parallel to, one another. Both the first ledge and the second ledge are configured to permit a circular disc to travel therebetween. A compartment in fluid communication with an exhaust port is defined by the first ledge, the wall and a minor surface positioned below the major surface.

Abstract: A method for operating a spinning machine that has a plurality of adjacently arranged workstations and at least one trash conveying unit that transports trash accumulating at the workstations to at least one receiving unit includes discontinuously driving the trash conveying unit during operation of the spinning machine.

Abstract: A dust collection system designed for a table saw is disclosed. The dust collection system includes a dust shroud and dust shield to channel dust generated by a blade as it cuts wood or other material. The dust shroud includes fins and walls to “peel” dust and air off a spinning blade and direct the dust and air downward. The dust shroud encloses the lower front portion of a blade.

Abstract: A dust and debris collection system for use with woodworking routers, including a baffle, a dust collection hood, and a brush. The baffle includes a top surface, where the top surface is configured to deflect cooling air generated by a woodworking router out and away from the woodworking router in order to allow the woodworking router adequate cooling and efficient dust collection. The dust collection hood is located adjacent to the baffle and includes a sloped wall that is aerodynamically shaped to remove dust and debris and includes a central bit hole configured to accept a bit. The brush has a series of bristles extending from the dust collection hood. The brush and its bristles contain dust and debris.

Abstract: An example coating removal apparatus for a component includes a table having a first platform disposed along an axis. The platform is arranged to receive at least one fixture for holding a corresponding component. The coating removal apparatus also includes a removal device having a web. The table is slidably moveable in an axial direction and configured to move the fixture a pre-determined distance such that at least one portion of the component contacts the web to remove a coating of the component.

Abstract: A dust collecting attachment that is mounted on a sander includes a suction portion mounted on a portion of a front housing where an output shaft projects, a flexible hose having a front end of the flexible hose connected to the suction portion, a discharge portion connected to a rear end of the flexible hose and a changeable member placed on both a motor housing and the discharge portion. The changeable member allows the discharge portion to be mounted at any position around an axis of the motor housing.

Abstract: A holding body includes a fastening layer which has a fastening surface configured to fasten a flexible grinding device. The fastening layer includes an air- and dust-permeable material and is substantially full-surface. The fastening layer includes a textile material. The holding body also includes a supporting body which has a supporting surface configured to support a holding surface of the fastening layer. The supporting body is air- and dust-permeable and includes an open-cell foam. A grinding system includes such a holding body and such a flexible grinding device.

Abstract: Disclosed is a grinding tool, which includes a first disk having an installation hole in a center portion thereof such that the grinding tool is installed on a grinder, a second disk forming a discharge passage with partitions on a bottom surface of the first disk, wherein air intaken from a central lower portion of the grinding tool is discharged to an outside thereof through the discharge passage, and a ring-shaped shank disposed under the second disk and including grinding tips to grind a target.

Abstract: The present invention relates to a polishing apparatus for polishing an object to be polished (substrate) such as a semiconductor wafer to a flat mirror finish. The polishing apparatus includes a polishing table configured to support a polishing pad, a polishing head having a top ring configured to press an object to be polished against the polishing pad while the object to be polished is rotated, and a dresser head having a dresser configured to dress the polishing pad. The polishing apparatus has a head cover having a purge gas introducing unit configured to introduce a purge gas into the head cover and an exhausting unit configured to exhaust the interior of the head cover. The pressure in the head cover is set to a pressure level slightly higher than the pressure outside the head cover, and main components of the polishing head are housed in the head cover.

Abstract: A vacuum may include a housing, a filter, a motor-fan assembly, and a flue. The housing defines a chamber having a circular cross-section. The filter may have an annular shape and is disposed in the chamber of the housing. The motor-fan assembly includes a motor drivably coupled to a fan, such that the fan is mounted above the motor. The motor and the fan are enclosed in a casing, and the casing is disposed in an opening of the filter. The fan draws air into the chamber via the intake port and upward through the filter into the casing of the motor-fan assembly. The flue defines an exhaust path from the casing to the exhaust port, whereby air drawn into the casing is discharged via the flue outside the chamber of the vacuum.

Abstract: An excavation apparatus is disclosed. The excavation apparatus includes a chassis having a length that extends from a front end to a rear end of the chassis. The chassis also has a width oriented perpendicular to the length. A boom is pivotally attached to the rear end of the chassis. A cutting component mounted to the boom. A shroud structure at least partially covers the cutting component. A source of vacuum is in fluid communication with an interior of the shroud structure for drawing air containing dust from the interior of the shroud structure. A filter filters the air drawn from the interior of the shroud structure by the source of vacuum. A dust barrier projects downwardly from the shroud structure and extends along at least a portion of a perimeter of the shroud structure.

Abstract: A vacuum assembly for removing debris formed on the surface of a work chuck after a wafer grinding process by positioning a vacuum source above the work chuck and then activating the vacuum source.

Abstract: A dust collection system for an orbital sander is provided to assist a user in containing residual dust particles when sanding. The device includes a stretchable band, a flexible transparent housing, and a vacuum hose portal. The stretchable top band has a fastening system that fastens around the neck of the sander to create a seal. The flexible transparent housing with an open lower portion fastens closely around a lower region of the sander and a sanding plate, which enables a user to have visibility of the area being sanded. The vacuum hose portal connects to a vacuum hose to suck the dust that is created by the sander. The device can be added to a new orbital sander or retrofitted to an existing orbital sander. The device enables a user to sand in a conventional manner while preventing the spread of dust and debris when using an orbital sander.

Abstract: A chop saw, grinding wheel, or like apparatus is disclosed herein also incorporated to an easily portable dust collection system. In a preferred embodiment, a worktable is provided with a center slot for receiving a circular saw blade. A negative pressure and resulting air flow is provided at the center slot to capture particulate matter as a byproduct of cutting the workpiece. Side slots are also disclosed to assist in particulate collection. A unique filter chamber having a cylindrical filter is additionally provided to remove dust from air and discharge the filtered air at a lateral side of the apparatus. A filter cleaning knob is additionally disclosed to assist in cleaning the filter. Of the beneficial aspects of the chop saw with dust collection system is its portability being one integral unit and the dust filter being easily cleaned and maintained.

Abstract: Provided is a waste water collection device and a method of collecting waste water dispelled from a water cooled saw cutting the ground.

Abstract: A dust collection hood installed on a grinding machine tool which includes a driving motor and at least one grinding portion driven by the driving motor to rotate. The dust collection hood includes a circumferential wall surrounding the grinding portion and a dust collection cap. The dust collection cap is coupled with the circumferential wall to form a dust collection chamber to house the grinding portion, and includes a top fastened to the grinding machine tool. The dust collection chamber is formed at a height gradually decreased from the top towards the circumferential wall. The dust collection cap further includes a dust discharge port communicating with the dust collection chamber and an airflow guiding portion to guide airflow from the dust collection chamber to the dust discharge port. Thus a great amount of dust generated during grinding can be discharged via the dust discharge port.

Abstract: A blasting apparatus capable of increasing suction power to collect an abrasive without exerting any influence on processing of a work surface with the abrasive. The apparatus includes a blasting nozzle (2) blasting an abrasive (100) on a surface (200a) of work (200), a cover (10) including a surface (10a) for airflow alignment parallel to the work surface and a blast hole (10b) through which the abrasive from the nozzle passes, a nozzle case (9) including the cover and surrounding the nozzle, and a collecting case (11) covering an outer surface of the nozzle case and including a collecting passage (11c) disposed around the nozzle case, from the passage, the abrasive being collected by suction, wherein the apparatus collects the abrasive that is blasted from the nozzle and strikes the work surface from the passage through a clearance (13) provided between the airflow-alignment surface and the work surface.

Abstract: A system and method for capturing resultant dust from power tool operation are disclosed. The system comprises a device that includes a housing with a substantially cylindrical shape. The housing has a first end that tapers to an opening for a tool bit and at least one suction port that opens into an interior volume of the housing. The housing has a second end configured to couple to a power tool. An air intake passage attaches to the exterior surface of the housing body such that an interior volume of the air intake passage connects to an interior volume of the housing. An exit passage is coupled to the air intake passage and is configured to couple to a vacuum.

Abstract: An abrading tool has a grinding disc mounted to the shaft of a motor, and a dust shroud which has a depending flange which extends over and about a periphery of the grinding disc, the dust shroud having a flattened segment, and a peripheral flexible and adjustable skirt which attaches to and extends beyond the depending flange.

Abstract: A vacuum assembly for removing debris formed on the surface of a work chuck after a wafer grinding process by positioning a vacuum source above the work chuck and then activating the vacuum source.

Abstract: A dust shroud apparatus for a work tool includes a housing having at least two perpendicularly aligned side walls, an exhaust tube coupled to the housing, and a mounting system coupled to the housing. The mounting system is adjustable to permit the housing to be secured to a plurality of different sized work tools. The apparatus also includes a cut wheel having an outer edge substantially aligned with the at least two perpendicularly aligned side walls.

Abstract: A system and method for removing material (e.g., drilling or cutting) utilizing foam is provided. The system and method may comprise a vacuum collar that removes foam and residual particles from a cutting interface. The foam may be directed to a foam-to-liquid transforming device that decreases the volume of foam.

Abstract: Disclosed are improvements to a high speed power buffer assembly provided with a dust evacuation system. The assembly includes a hood depending from the chassis to encircle the high speed rotating buffer pad, a peripheral skirt depended from the chassis, a dust collection aperture adjacent the buffer penetrating the hood for the outlet of dust to the exterior of the hood, a curved dust collector chute, aligned and in communication with the dust collection aperture, and a dust collection bag, communicated with the dust collector output. The skirt has inclined grooves to co-act with the buffer pad to entrain air from the outside of the skirt to the inside. Given the arrangement of the foregoing features, the dust evacuation system can operate without the use of a vacuum pump.

Abstract: During grinding of mutually parallel edges of glass plates every edge of the glass plate is ground using a grinding tool or two grinding tools disposed one behind the other and cooling agent is directed from a side of the glass plate toward the grinding tool and supplied using a supply line divided via a redirection and separating segment into a plurality of fine streams of cooling agent, and a position of the grinding tool can be adjusted such that at least the position of the grinding tools relative to the assigned edge of the glass plate, which is passing through, is calibrated and the corners of the glass plate are ground to form a chamfer.

Abstract: A grout removal tool includes a cover shaped to define a substantially enclosed interior cavity and a grinding assembly designed to simultaneously abrade grout from multiple, non-linear tile joints. The grinding assembly includes a motor-driven shaft that is rotatably coupled to the cover by a pair of ball bearings. The grinding assembly additionally includes two or more grinding elements that are axially mounted on the shaft in a spaced apart relationship, each grinding element including at least one disc-shaped grinding wheel. A vacuum attachment is externally mounted on the cover and is in communication with the interior cavity through a plurality of circular openings formed in the cover in direct alignment with the grinding elements. One end of the vacuum attachment is preferably connected to a vacuum device that forcibly withdraws and contains debris created during the grout grinding process.

Abstract: A universal dust shroud includes a unitary mounting bracket on top of the shroud body. The bracket includes a plurality of collar sections attached to the body via a ‘Z’ shaped joint which allows the collar sections to move radially inwardly and outwardly relative to each other to accommodate different angle grinders. The bracket may include slots formed at the base of the bracket. The slots allow air to flow in through the slots, out past the grinding disk, and to the vacuum port. As such, the slots can aid in cooling the grinder output and bearings, and helps keep dust and debris away from the bearings in order to extend the life of the grinder.

Abstract: A sanding system suitable for drywall sanding has a foam sanding block that fits into a hollow housing such that a gap is left around most of the perimeter of the sanding block and the housing near the plane of sanding. Some regions of the perimeter are dimensioned relative to the sanding block such as to not leave a gap but instead are such as to provide a friction fit between the housing and the sanding block.

Abstract: A back-up apparatus for use with a surface treating apparatus can include a back-up plate having a pad attachment face and a back-up pad having a first pad face and a second pad face. The back-up apparatus can also include a porous interface layer. The interface layer can include an outer face. The back-up apparatus can also include a layer of a first adhesive on the outer face and extending into the interface layer, and a layer of a second adhesive provided on the layer of the first adhesive. The second adhesive can be selected to releasably adhesively bond to an abrasive sheet. The first and second adhesives can be selected such that the adhesive bond between the first adhesive and the second adhesive is stronger than the adhesive bond between the second adhesive and the abrasive sheet.

Abstract: A dust collection assembly for a manual sander, having a bag with an open upper end and a lower end terminating in an aperture, and a rigid frame supporting the open upper end of the bag. The rigid frame includes a periphery to which the open upper end of the bag is attached, and a pair of opposing engagement portions extending from the periphery towards a center of the open upper end of the bag. The manual sander includes a sanding element and a pole rotatably mounted thereto. The pole extends through the bag's aperture, and each of the engagement portions is removably connected to mounting bolts on the sanding element such that the sanding element is rigidly held at the open upper end of the bag so that the bag collects dust and debris created by the sanding element during use.

Abstract: A back-up apparatus for use with a surface treating apparatus can include a back-up plate having a pad attachment face and a back-up pad having a first pad face and a second pad face. The back-up apparatus can also include a porous interface layer. The interface layer can include an outer face. The back-up apparatus can also include a layer of a first adhesive on the outer face and extending into the interface layer, and a layer of a second adhesive provided on the layer of the first adhesive. The second adhesive can be selected to releasably adhesively bond to an abrasive sheet. The first and second adhesives can be selected such that the adhesive bond between the first adhesive and the second adhesive is stronger than the adhesive bond between the second adhesive and the abrasive sheet.

Abstract: An object of the present invention is to provide a dust collecting cover for a grinding cup wheel having both excellent practicality and versatility. A base plate is joined to a body of the dust collecting cover via elastic bodies at a plurality of positions, an adapter for joining an angle grinder is attachably/detachably provided on the base plate, and a portion of the body cover is formed as a sub-cover openable/closable utilizing a magnetic force of a magnet, and the sub-cover is configured to be fastenable to the body cover by a screw inserted via a through hole provided in the magnet into a female screw part provided on the body cover side.

Abstract: A method and a device for machining the leading edge of a turbine engine blade by a machining center for which parameters are set is disclosed. The method includes: acquiring a 3D profile of the leading edge of the blade; calculating at least one characteristic of the leading edge from the 3D profile; comparing the value of the calculated characteristic with a known theoretical value of the characteristic to obtain an elementary difference for the characteristic; calculating at least one undulation of the leading edge between at least two consecutive elementary sections from the 3D profile; optimizing the elementary differences obtained as a function of the undulation; setting the parameters of the machining center as a function of the optimized elementary differences for the elementary sections to define machining passes over the leading edge; and machining the leading edge of the blade with the machining center with parameters set.

Abstract: A ceiling grinder comprising a drive unit, a grinding wheel, which can be set in rotation by means of the drive unit, a grinding head housing, which receives the grinding wheel and has an opening allowing the grinding wheel access to the surface to be ground and a holding element for holding the grinder. The ceiling grinder also has means for producing a negative pressure within the grinding head housing, by which the ceiling grinder is held on the surface to be ground, wherein the means for producing the negative pressure comprise lamellar elements, which rotate about the axis of the grinding wheel during the grinding operation of the ceiling grinder and thereby cause within the grinding head housing an air flow that induces a static negative pressure.

Abstract: A sponge sander configured for selective attachment to a dust-collection system includes a housing having a housing-interior surface defining a sponge cavity and a sponge seat configured for removably retaining a determinately-dimensioned sanding sponge. The sponge has an abrasive sanding surface, a back surface opposite the sanding surface and a sponge periphery defined between the sanding and back surfaces. The sponge is retained within the sponge cavity such that (i) the abrasive sanding surface can engage a work surface to be sanded, (ii) fluid-flow channels are maintained between the sanding sponge and the housing-interior surface and (iii) the spaces are in fluid communication with a fluid port defined in the housing so that when a negative pressure is applied across the fluid port by a vacuum system external to the housing, dust created by sanding is drawn into the fluid-flow channels and out of the housing through the fluid port.

Abstract: The invention concerns a grinding machine having displaceable grinding means for the processing of workpieces made from wood, wood composite materials, plastics, metals and similar materials. The invention further concerns a method of grinding a workpiece by means of the inventive grinding machine. The grinding aggregate comprises: at least one translational driving means configured to translate the grinding means (6) and at least one eccentric tappet configured to rotatingly move the grinding means (6). The inventive device is characterized in that the grinding aggregate comprises a suctioning device which suctions waste products of the processing, such as chips, through the grinding means. In this way, it is possible to achieve a qualitatively superior grinding result.

Abstract: A sanding system suitable for drywall sanding has a foam sanding block that fits into a hollow housing such that a gap is left around most of the perimeter of the sanding block and the housing near the plane of sanding. Some regions of the perimeter are dimensioned relative to the sanding block such as to not leave a gap but instead are such as to provide a friction fit between housing and sanding block.

Abstract: A jewelry bench dust shield including a base attachable to a jewelry bench, an arm pivotally attached to said base, and a dust shield attached to said arm. A jewelry bench dust shield including a vacuum triggering pivoting arm, a trigger holding arm pivot base attachable to a jewelry bench, and a face plate connected to said arm. A jewelry bench dust shield including a base attachable to a jewelry bench, a vacuum trigger connected to said base having a wire connectable to a vacuum, an arm pivotally attached to said base, said arm having an extension portion which depresses said trigger when arm is lowered, and which releases said trigger when arm is raised, and a face plate connected to said arm.

Abstract: A dust shroud for an angle grinder includes an access hatch which slides along the shroud body to selectively expose an edge of a grinding disc to allow grinding into a corner. The hatch remains attached to the shroud body in both the open and closed position, making the hatch easier to use and less likely to become lost, resulting in increased worker compliance in properly using the hatch.

Abstract: Improved apparatus and methods for collecting debris generated during a tire buffing operation on a tire buffing machine, the tire buffing machine having a cutting head cutting surface rotatable about a cutting head axis. The system includes a rotatable shroud being rotatable about a shroud axis, the shroud comprising a side member surrounding a majority of the cutting head cutting surface, a cutting head access window to expose the cutting head for buffing the tire casing, and a vacuum suction port that is adjacent to the cutting head access window. The system may further include a driver to rotate the shroud during buffing, wherein rotating the shroud during buffing aligns the vacuum suction port with the projected path of debris being discharged from the cutting head cutting surface.

Abstract: A hand-held surface preparation apparatus comprising a frame, a hollow semi-circular shaped housing member connected to said frame, a drive housing connected to said housing member, a motor secured to said drive housing aligned directly over said hollow semi-circular shaped housing member, a roller rotatably positioned inside of the semi-circular shaped housing member in communication with said motor, front and rear guide handles extending from said frame, and removably connected front and rear debris guards.

Abstract: The present invention relates to an interface pad for use between an abrasive article and a support tool. In one particular embodiment, an interface pad for use between a perforated abrasive article and a support tool is provided. In general, the interface pads described herein contain apertures and at least one channel configured such that an interface pad can be used between an abrasive article having a particular configuration of apertures and a support tool having different configuration of dust collection apertures. In one embodiment, the interface pads described herein contain apertures and at least one channel configured such that the interface pad can be used between any perforated abrasive article and any support tool with dust extraction capabilities. Abrasive tools which include an interface pad and methods for using the interface pads are also described.

Abstract: A dust collecting attachment that is mounted on a sander includes a suction portion mounted on a portion of a front housing where an output shaft projects, a flexible hose having a front end of the flexible hose connected to the suction portion, a discharge portion connected to a rear end of the flexible hose and a changeable member placed on both a motor housing and the discharge portion. The changeable member allows the discharge portion to be mounted at any position around an axis of the motor housing.

Abstract: A dust extraction device for a machine hand tool is provided. The dust extraction device includes an outer tube arranged about an axis, the outer tube being closed on the first axial end thereof by a wall. An opening is provided for a pump connection, the opening being arranged in a position neighboring the wall in a shell wall of the outer tube. An attachment feature is provided having a sheath-like shape and arranged on the side of the wall which lies opposite the outer tube in an axial extension of the outer tube. An inner tube is arranged inside the outer tube about the axis, and penetrates the wall. A length of the inner tube inside the outer tube is at least half of the length of the outer tube.

Abstract: Dust collection for an abrasive tool is disclosed. In one embodiment, a first dust extraction component extracts dust from an upper part of material that is machined, while a second dust extraction component extracts dust from a lower part of the material by the abrasive tool. The first dust extraction component and the second dust extraction component collect about 100% of dust generated from the material.

Abstract: A negative pressure dust collection structure aims to be used on a power tool which is coupled with an application tool operable in a working space surrounded by a dust collection hood. The dust collection hood includes at least one flow conduction vent communicating with an airflow duct through a negative pressure enhancing duct. The negative pressure enhancing duct has a negative pressure enhancing chamber communicating with the flow conduction vent. The negative pressure enhancing chamber is formed at a cross section shrunk gradually from the flow conduction vent towards the airflow duct to increase suction of the negative pressure enhancing duct to collect dust in the dust collection hood. Moreover, the negative pressure enhancing chamber has an opening edge mating the shape of the inner side of the wall of the dust collection hood to increase covering range of the airflow.

Abstract: A dust collection cover capable of efficiently collecting cutting chips and residues generated as a result of cutting a workpiece. A cutter includes a motor and a rotary blade driven by the motor, and the dust collection cover is attached to the cover for covering a part of the blade. The cover is formed with a dust discharge port through which cutting chips and residues are discharged. The cover has a guide arrangement for directing the cutting chips and residues toward an interior of the cover body. The arrangement provides a blowing-out air blowing to the workpiece, or a rod-like member removing the cutting chips and residues.

Abstract: A rotary abrasive device and for facilitating the removal of dust from a work surface. The rotary abrasive device may include a plenum, a plenum coupled to a vacuum source via a plenum exhaust. The shape of said plenum may be varied depending upon application. The plenum exhaust is right biased in a clockwise shaft rotation in order to pick-up debris off of a clockwise rotating abrasive device. The invention may include a rotary constraining member to allow the shaft to rotate freely through the plenum and a locking means to keep the plenum in a substantially fixed position. According to further illustrative embodiments of this aspect of the invention, the plenum one or more inlets of a fixed or varying width to pick-up debris off of a work surface.