Abstract: A grinder includes a housing, a gear cover attached to the housing by a plurality of screws, a spindle case attached to the gear cover, a wheel guard rotatably mounted on the spindle case for covering approximately a half of a disc-shaped tool bit attached to a spindle, a stop piece that regulates the rotation of the wheel guard. The wheel guard is selectively fixed to and unfixed from the spindle case. The stop piece is fixed to the housing together with the gear cover by at least one of the plurality of screws. The stop piece has an abutting section at which the stop piece abuts the wheel guard to regulate the rotation of the wheel guard. The abutting section is located at a position deviated from an axial line of the at least one of the plurality of screws.

Abstract: The invention relates to a protective hood anti-rotation lock for a portable power tool (12a-k), especially for an angle grinder, for providing anti-rotational locking between the portable power tool (12a-k) and a protective hood unit (14a-k). According to the invention, the protective hood anti-rotation lock has a form-fit unit (16a-k) which is provided for anti-rotational locking of the protective hood unit (14a-k) in relation to the portable power tool (12a-k) in the event of a tool (18a-k) breakage.

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: The invention relates to a portable power tool (44) for a rotating, preferably disk-shaped tool. Said portable power tool comprises a machine housing (43), having a machine neck (22) to which a protective hood (1) can be detachably secured to at least partially cover the tool. Said protective hood (1) comprises a protective hood neck (2) and a clamp (29) is provided for the detachable securing. In order to provide an anti-rotation lock (48) which is effective between the machine neck (22) and the protective hood (1), a respective profiled structure (15) is arranged/configured on the clamp (29) and on the protective hood neck (7) or on the protective hood neck (7) and on the machine neck (22) or on the protective neck (7) and on the clamp (29) and on the machine neck (22).

Abstract: The invention relates to a portable power tool for a rotating, preferably disk-shaped tool (12). Said portable power tool comprises a machine housing (14), having a flange (16, 160) or a machine neck, and a protective hood (18) that can be detachably tensioned on the machine neck to cover the tool (12) or that has a protective hood neck (20) or protective hood collar that annularly carries a tightening strap (22). Said strap can be tightened by tensioning means (24). An anti-rotation lock effective between the machine neck and the protective hood (18) is interposed between the protective hood (18) and the machine neck in the form of a profiled structure (26). The invention is characterized in that the tensioning means (24), in its tensioned position, can be connected several times in a form fit to the machine neck and in its detached positioned is no longer connected in a form fit to the machine neck.

Abstract: A hand-held power tool for a rotating tool has a machine housing with a machine neck, a guard for at least partially covering the tool and detachably attached to the machine neck and including a guard neck, a clamping cuff for detachably attaching the guard to the machine neck, and an engagement structure including an engagement element provided on the clamping cuff and at least one recess for engagement of the engagement element provided on the guard neck, or on the guard neck and the machine neck, to form a rotational lock that acts between the machine neck and guard, and the clamping cuff is a separate component attached to the machine housing.

Abstract: A machine tool has a work space (17) in which a device (15) for accommodating workpieces (16) to be machined is arranged. The machine tool further has a work spindle (18) for machining the workpieces (16) and a slide (34) which carries the work spindle (18) and is traversable in a longitudinal direction relative to the device (15), a respective cover (25), variable in length in the longitudinal direction (x), for the work space (17) being provided on the slide (34) on each of its sides, said cover (25) being connected with its respective first end to the slide (34) and with its respective second end to a side wall (21, 22; 51) of the work space (17). Each cover (25) variable in length has a respective rear wall (26) and a respective top (27), whereby the top (27) is connected to the rear wall (26) in a detachable, push-in, manner. A further flexible cover (31) is arranged in front of the slide (34) to protect the work space (17) at the bottom.

Abstract: A straight type power grinder includes an elongate housing having a handle with a power controller at its rear end, and a neck portion at its forward end supporting an output shaft connected to a rotation motor. The neck portion is formed with an integrated mounting flange for a grinding wheel guard. The neck portion and the mounting flange form an auxiliary handle for a comfortable manual support of the grinder during operation.

Abstract: The invention relates to a hand-held power tool, particularly an angle grinder having a housing that has a flange neck, having a protective device that can be accommodated on the flange neck and that can be pivoted in the circumferential direction, and having at least one device for blocking at least one pivoting direction of the protective device. The invention proposes that the device for locking includes at least one stop and at least one counter-stop interacting with the stop.

Abstract: A riding apparatus for treating a floor surface has a main steering and drive wheels and a forwardly located seat for an operator and at least one foot rest for feet of the operator. The vehicle has a polishing and cleaning deck mounted in front of the vehicle and is operably connected to the main vehicle. A clearance gap is formed between the vehicle and the polishing and cleaning deck. The at least one foot rest has a gap therebetween for providing a line of sight for the operator through the gap to view the floor surface directly behind the deck.

Abstract: A manually guided implement having a tool driven by an internal combustion engine, which draws combustion air in via an air filter disposed on an air filter base. The air filter is secured to the implement via a releasable securement device that includes a first securement element, and a second securement element that cooperates with the first securement element. The securement elements can be released from one another, or connected to one another, by means of a rotational movement about an axis of rotation. To achieve easy handling of the air filter, the first securement element is fixedly connected to the air filter.

Abstract: A dust collection container for power tool with suction capacity is described comprising a first pipe (15) for air inlet and at least one second pipe (20) for air outlet, i.e. connected to the external environment, the dust container (13) comprising a filtering element (22) placed inside an external casing (14). The container further comprising a bladed element (100) accommodated in the external casing (14) and being adapted to increase the air turbulence. The shape of the space comprised between the filtering element (22) and the external casing (14) determines a cyclonic type air motion.

Abstract: A grinder can include a stopper projection provided to a grinding stone cover and position a stopper abutting portion on a side of a gear housing in order to restrict a position adjustable range through abutment of the stopper projection to the stopper abutting portion in a position where the grinding stone cover has rotated in a rotational direction of the grinding stone by a set angle.

Abstract: A method and apparatus are provided for a collapsible enclosure for a machine tool. According to one embodiment, a collapsible enclosure for a machine tool comprises a substantially waterproof pan. The pan comprises a base portion and a wall portion extending from the base portion around substantially all of an outer edge of the base portion. The collapsible enclosure further comprises a collapsible frame resting on the base portion of the pan and erected inside of the wall portion of the pan. A substantially waterproof cover substantially surrounds the collapsible frame and extends into the pan to overlap an inner side of the wall portion of the pan.

Abstract: A movable machine, for example a saw, has a light construction using composite materials such as fiber reinforced resins and a closed cell foam. The saw may have a housing formed from multiple skins of the composite materials sandwiching the closed cell foam. Metallic inserts may be used to bond to either or both of the foam and the composite skin to accept working components. A saw is also described which uses gears sharing the same support element.

Abstract: The invention is based on a handheld power tool, in particular a right-angle sander (10), having a gearbox (12), a flange neck (14) with a guard device (20), which device is receivable on the flange neck (14) and forms a receptacle region for a tool (18) and is rotatable in the circumferential direction (22), and having at least one detent device (24) for locking a rotary position of the guard device (20). It is proposed that the detent device (24) is at least partially integrated with the flange neck (14) of the gearbox (12).

Abstract: The invention originates from a safety device, in particular for hand-held power tools, with a disk-shaped and rotating tool, and with a base body (12). It is recommended that the safety device include an energy-absorbing element (14) arranged on the base body (12).

Abstract: A motorized knife sharpener includes means of for sharpening heavy, medium, and fine blades at angles appropriate to the cutting edges of such blades.

Abstract: A hand-held power tool for rotating a working tool disc (30) includes a removable protection hood (6) for partially covering the working tool disc (30) during operation, and a clamping device (8) for securing the protection hood (6) relative to a power tool head (2) and having a clamping member (12) that limits partially a substantially cylindrical region (14) for receiving an attachment collar, and a clamping element (20) provided at opposite ends (19) of the clamping member (12) for displacing the clamping device (8) into its locking position and having a locking region (34) projecting into the receiving region (14) of the clamping member (12) at least in the locking position of the clamping device (8).

Abstract: In accordance with the foregoing objects and advantages, the present invention provides a fabrication device that may be used during the grinding operation of the fabrication process. The fabrication device comprises a socket plate that includes a plurality of cavities formed therein that correspond in position and number to the solder (or other conductive material) bumps formed on the front surface of a product wafer.

Abstract: A powerhead for a hand held power tool includes a powerhead assembly, the powerhead assembly being operably couplable to a hand held motive source, the powerhead assembly having a rotatable implement, the implement being selectively rotated by the motive source when the motive source is operably coupled to the powerhead assembly, the implement further being rotatable about an implement axis, the implement axis being disposed transverse to a powerhead assembly longitudinal axis, the implement axis intersecting the powerhead assembly longitudinal axis. A hand held power tool and a powerhead of forming a powerhead for a hand held power tool are further included.

Abstract: An angle grinder for driving a cutting or grinding tool (12), includes a housing (11) having a first housing section (14) extending along a first axis (A1), and in which a motor (18) is arranged, and a second housing section (15) extending along a second axis (A2) and in which an accumulator receptacle is arranged, with the first and second axes (A1, A2) extending at an angle (?) to each other; and with a handle (20) having its first end (21) secured to the first housing section (14) and its second end (22) secured to the second housing section (15).

Abstract: A safe guarding assembly for a grinding gun has a body, a rear protective cap and a front protective cap. The body has a casing. The casing has a front end, a shaft hole and a retaining ring. The shaft hole is formed through the casing. The retaining ring is formed on and protrudes from the front end of the casing around the shaft hole. The rear protective cap is mounted securely around the retaining ring of the casing and has a front end, an inner thread, a through hole and a mounting ring. The mounting ring is formed on and protrudes from the front end of the rear protective cap and has an external surface and an outer thread. The front protective cap is mounted detachably around the mounting ring of the rear protective cap and has an inner thread and a conical segment.

Abstract: A chamber for an abrading apparatus comprising an inlet, an outlet, a main body and an insert, the main body comprising a recess on an inner surface thereof between the inlet and the outlet, whereby, in use, the insert is removably retained in the recess. The apparatus also comprises a housing and actuation means, the chamber being pivotably secured at one end to the housing by a quick release pin, wherein the actuation means is connected to the chamber and operable to cause the chamber to pivot with respect to the housing toward and/or away from the abrasive surface.

Abstract: A power tool includes a guard hood to be fixed on a tightening neck via a securing device thereof. The securing device has a securing part, which is to be tightened via an actuation element, and a detent component which is adjustable between a detent or locked position and a nondetent or unlocked position. The actuation element acts upon both the securing part and the detent component.

Abstract: The invention relates to a hard finishing machine (1). The machine has one tool (4) which is arranged on a tool spindle (3) and a rotary table (5) with an axis of rotation (6) which is aligned vertically, and a workpiece spindle (7) arranged on the rotary table (5) which carries the workpiece (2). To increase the flexibility of the machine, the rotary table (5) has a first rotational position (I) in which the workpiece (2) can be machined by the tool (4), a second rotational position (II) where the workpiece is loaded on the workpiece spindle (7) at a first station (8), and a third rotational position (III) where the workpiece is unloaded at a second station (9).

Abstract: An apparatus for processing a substrate is disclosed. The apparatus includes a polishing section configured to polish a substrate, a transfer mechanism configured to transfer the substrate, and a cleaning section configured to clean and dry the polished substrate. The cleaning section has plural cleaning lines for cleaning plural substrates. The plural cleaning lines have plural cleaning modules and plural transfer robots for transferring the substrates.

Abstract: The invention relates to a protective hood for a portable tool with a rotary tool, having a clamping device designed as a clamping ring for fastening to a machine neck of the portable tool, and having an anti-rotation locking means for fixing the angular position of the protective hood relative to the portable tool. It is proposed that at least one rotation-locking element (19) which can interact with a rotation-locking element (19) of the machine neck be arranged in a fixed position on the clamping ring (7) for forming the anti-rotation locking means. A portable tool having such a protective hood (1) is also proposed.

Abstract: Hood plates for use with hood covers designed for handheld power tools including angle grinders are disclosed herein. More specifically, the hood plates disclosed herein include means for easily attaching to a wide variety of available angle grinders and are easily configured to work with a soft hood cover to allow both horizontal and vertical movement of the grinding attachment within the hood cover.

Abstract: A molded tool casing of at least two sections for air-tightly encasing a tool is taught. A seal is inserted into a groove molded into the sealing perimeter of one section. A protruding ridge is molded into the sealing perimeter of a second section that is to be joined to the first casing section is adapted for compressing the seal into the groove providing for an air-tight seal for the two joined sections. The casing sections are contoured to provide air-tightly sealable inner-casing compartments for receiving and encasing tool components. Opposing joining perimeters of the air-tightly sealable compartments are adapted with the grooves and protruding ridges, respectively. The tool casing houses a tool, such as a pneumatic tool, such as a central or self-generating vacuum pneumatic tool, or a non-vacuum tool. The tool casing is molded to have a firm inner layer coated by an outer pliant overmolded layer.

Abstract: A reduced height quarter sheet sander has a housing having first and second halves mated together. An upper portion of the housing provides a handle. An electric motor is disposed in the housing. The electric motor has a stator and an armature. The stator has field coils and the armature has an armature shaft on which a commutator is affixed. A pair of brush boxes is disposed in the housing on opposite sides of the commutator. The brush boxes lie in a horizontal elevation when the sander is upright. An orbit mechanism is coupled to the armature shaft and a platen is coupled to the orbit mechanism. In an aspect, a switch disposed in the handle of the housing and a terminal block (at which a cordset that enters the housing terminates) disposed in the handle of the housing have generally the same horizontal elevation as the brush boxes (when the sander is upright).

Abstract: The invention relates to a portable power tool (19) for a rotating, preferably disk-shaped tool. Said portable power tool comprises a machine housing (18), having a machine neck (15) to which a protective hood (1) can be detachably secured to at least partially cover the tool. Said protective hood (1) comprises a protective hood neck (7) and a clamp (23) is provided for the detachable securing. In order to provide an anti-rotation lock (43) which is effective between the machine neck (15) and the protective hood (1), an engagement element (28) is arranged/configured on the clamp (23) and at least one recess (14) for the engagement element (28) to engage with on the protective hood neck (7) or on the protective hood neck (7) and on the machine neck (15).

Abstract: A sharpening device for sharpening operative instrumentation having a gripping handle 4 and an acutely angled receptacle support 6, both of which form a radiated palmer contour 8, and both of which have flattened self balancing table rest 10 terminations. The hone receptacle 6 has an attached offset rectilinear container or whet-stone receptacle 12 with guard walls 16 that extend above a contained whet-stone 14. The instrument entry channel 18 is a shorter wall that allows full usage of the whet-stone surface without forcibly influencing sharpening angulations due to an excessively high wall. The offset receptacle support 6 and whet-stone receptacle 12 create two overhangs or a vertical locking rest 20 and a horizontal locking 22 rest that engage with a table. The locking rests coupled with the angled handle 4 receptacle support 6 and resultant palmer contour 8 permit two ergonomic holding positions that allow for both vertical and horizontal honing orientations.

Abstract: An adjustment device for the front guard of a grinding wheel machine includes a grip and round rod. The round rod is mounted with a fastening base and one side of the fastening base is furnished with a flat surface to be attached to an inner surface of a guard plate on the front end of a transmission shaft. The flat surface of the fastening base is furnished with symmetrical position beads and screw holes so as to have the guard plate positioned and screwed in place. After the guard plate is adjusted, the grinding wheel on the transmission shaft will simultaneously change direction by changing the direction switch so that the grinding wheel is turned in a different direction.

Abstract: A dust shroud for rotary tools includes a front half and a back half which are attachable together along an axis thereof to form a dust shroud. The dust shroud is mountable to a rotary power tool after mounting a mandrel in the power tool, and includes one or more openings to allow a person to lock the shaft of the tool while the dust shroud is mounted thereto to allow a person to change a worn out abrasive pad. The dust shroud is particularly suited for use with die grinders and similar rotary tools.

Abstract: A hand held retractable abrasive sharpener having a rod formed with a tapered end portion and a partially cylindrical opposite end portion. A part of the partially cylindrical opposition end portion is flat. A slot is formed in the rod. Substantially all of the outer surfaces include layers of the rod have an abrasive material. The rod is carried in a carrying case for transport and storage in a locked relationship and being capable of being released and withdrawn for sharpening with carrying case serving as a holder.

Abstract: A hand-held power tool for driving a grinding and cutting working tool (12) which is mounted on a drive spindle (13) projecting from the power tool housing (11), includes a locking and holding device (20) for releasably securing a protective hood (17), which at least partially covers the working tool (12) on the housing (11), with the holding device (20) having a clamping stirrup (22) for securing the protective hood (17), and a tensioning lever mechanism (21) with a tensioning lever (23) displaceable between a first position in which the clamping stirrup (22) is released and has a first stirrup width, and a second position in which the clamping stirrup is tensioned and has a second stirrup width smaller than the first stirrup width, and a locking spring (24) radially displaceable by the tensioning lever (23) and having at least one locking nose (25) for retaining the protective hood (17) on the housing (11) without a possibility of rotation relative thereto in the second position of the tensioning lever (23)

Abstract: The invention relates to a portable power tool system comprising a portable power tool (12a-n), especially an angle grinder, a protective hood unit (14a-n) and a protective hood anti-rotation lock (16a-n) for providing anti-rotational locking between the protective hood unit (14a-n) and the portable power tool (12a-n) in the event of a breakage of a tool (18a-n). According to the invention, the protective hood anti-rotation lock (16a-n) is adapted to provide anti-rotational locking between the protective hood unit (14a-n) and the portable power tool (12a-n) while at the same time securing the protective hood unit (14a-n) to the portable power tool (12a-n) in a working position of the protective hood unit (14a-n).

Abstract: The invention relates to an electrical hand tool device, in particular an angle grinder with a machine housing for holding a motor for the rotating drive of a drive shaft and a driven shaft connected with it via an angular gear for attaching a grinding tool at its free end, whereby a protective guard (12) that surrounds the grinding tool with a base body (14) at least partially and exhibits a protective guard neck (16) that is connected to the base body (14) and that can be detached together with said protective guard neck at a flange (20), which is positioned at the machine housing, and can be secured and locked in discrete adjustable rotational positions at the flange (20), whereby the protective guard (12) can be secured and locked at the flange (20) in a rotational position using a notch lever (18), and where for this purpose a ratchet cam (42) at the notch lever (18) reaches through an opening (40) in the protective guard (12), where a pivoting axis (22) of the notch lever (18) is arranged parallel to th

Abstract: The invention relates to a protective hood anti-rotation lock for a portable power tool (12a-f), especially for an angle grinder, for providing anti-rotational locking between the portable power tool and a protective hood unit (14a-f). According to the invention, the protective hood anti-rotation lock has a non-positive unit (16a-f) which is provided for anti-rotational locking of the portable power tool (12a-f) and the protective hood unit (14a-f) in the event of a tool (18a-f) breakage.

Abstract: A power tool has a handle holder portion having a semispherically bulging outer circumference, and an arm portion enclosing the handle holder portion and having a semispherically recessed inner circumference. The bulging outer circumference of the handle holder portion is fitted in the recessed inner circumference of the arm portion. An elastic member is clamped between a power tool body and a handle around the handle holder portion in the radial direction perpendicular to the center axis of the protruding direction of the handle holder portion. A bulging portion for limiting the sliding range of the arm portion is disposed at the leading end of the handle holder portion.

Abstract: There is also provided a dust extraction module for use with a power tool, the dust extraction module having: a dust collection chamber (50) having an inlet (52) connectable in fluid communication with an outlet (44) of a dust-extracting duct (40) of the power tool, and having an outlet (54) in fluid communication with atmospheric air; and a filter (60) locatable in fluid flow between the outlet of the dust collection chamber and the atmospheric air; wherein the dust collection chamber (50) has a substantially circular cross section, the inlet (52) to the dust collection chamber is at the perimeter of the circle and the outlet (54) of the dust collection chamber is from the middle of the circle.

Abstract: A cover device for a power tool with at least one disc-shaped working tool (6), includes first and second cover parts (12, 22) and a locking mechanism (41) for releasably pivotally positioning the second cover part (22) relative to the first cover part (12) and having a locking element (46) provided on one of the first and second cover parts (12, 22) and engageable with a counter-locking element (23) provided on another of the first and second cover parts (12, 22), and an actuation member (42) pivotally supported at a pivot point (45) on the one of the first and second cover parts (12, 22) and having an actuation section (43) and a locking section (44) extending at an angle from the actuation section (43), with the locking element (46) being provided at a free end of the locking section (44).

Abstract: The invention relates to a protective hood securing device for a portable power tool (12), especially an angle grinder. Said protective hood securing device comprises a protective hood unit (14), having a protective hood (16), and a securing unit (18) having at least one securing element (20) which is provided together with the protective hood unit (14) for protection in the event of a tool (22) breakage. For this purpose, the securing element (20) is at least partially configured by a protective cover (24) that is provided in addition to the protective hood (16).

Abstract: To provide a stopper for a cutting tool capable of getting a correct depth required in a medical treatment field, even if a few kinds of a cutting tool are available, without preparing a many cutting tools, the stopper for a cutting tool is fitted to a rotary shaft of a cutting tool having the rotary shaft, the stopper includes a locking member which has a through hole contacting to the rotary shaft of the cutting tool, a clamping member which is made of a shape memory material, provided at the inner and/or outer side of the locking member and can deform the locking member by its recovering force, and a cutout part reaching to the through hole from an outer peripheral edge thereof in the longitudinal direction of the rotary shaft.

Abstract: The invention relates to a portable power tool (44) for a rotating, preferably disk-shaped tool. Said portable power tool comprises a machine housing (43), having a machine neck (22) to which a protective hood (1) can be detachably secured to at least partially cover the tool. Said protective hood (1) comprises a protective hood neck (2) and a clamp (29) is provided for the detachable securing. In order to provide an anti-rotation lock (48) which is effective between the machine neck (22) and the protective hood (1), a respective profiled structure (15) is arranged/configured on the clamp (29) and on the protective hood neck (7) or on the protective hood neck (7) and on the machine neck (22) or on the protective neck (7) and on the clamp (29) and on the machine neck (22).

Abstract: A method and apparatus for cutting a profile in a workpiece, such as a turbine disk, without cracking the parent material which includes providing a grinding wheel having a ceramic grinding surface formed with an optimized grain material and grain spacing to produce large chips that are easily removed from the workpiece, applying the grinding wheel to the workpiece at a predetermined material removal rate, and increasing the material removal rate when the burning point is recognized at the surface of the workpiece by the grinding action of the grinding wheel, and delivering coolant/lubricant to the workpiece during the grinding operation.

Abstract: A vacuum-assisted sanding block having a swiveling connection tube for connecting the dust removal channels of the sanding block top and bottom plates to a vacuum system. The manual sanding block also includes a plate system for suctioning away dust and other particulate matter created during the sanding process. This plate system includes a top plate for connecting the swiveling connection tube, a channeled bottom plate having apertures for suctioning away the sanding dust, and a center separator plate positioned securely between the top and bottom plates. The swiveling connection tube may also be used with mechanical sanders to permit easier maneuvering of the sander into corners.

Abstract: The invention relates to an internally cooled grinding disc shielding (16), wherein a cooling liquid (14) outwardly flows thorough a recess embodied in the peripheral surface of a grinding disk, the shielding is provided with a collecting groove (17) for the cooling liquid (14) which surrounds the grinding disc (1) under a sector comprises at least one discharge nozzle (20) which is arranged on the output side and by means of which a jet is directed to a work piece (13) or to a grinding point (16).

Abstract: An improved dust collector for a power tool is employed. The dust collector includes a body portion, a neck portion and a head portion, wherein the body portion is disposable on the power tool so that during the cutting operation the body portion will receive and direct the air, dust, and debris to the head portion via the neck portion to either be exhausted out or to be collected in a dust collection volume. Preferably, the body portion has a series of openings to allow the user to view the cutting wheel during the cutting operation. The body portion may also have an internal directional member for efficiently directing the flow of air, dust, and debris. The head portion is preferably rotatably connected to the neck portion to allow the user to rotate the head portion to a desired position.