EP0857099A1 - Wire brush attachment for angle grinder - Google Patents
Wire brush attachment for angle grinderInfo
- Publication number
- EP0857099A1 EP0857099A1 EP96936521A EP96936521A EP0857099A1 EP 0857099 A1 EP0857099 A1 EP 0857099A1 EP 96936521 A EP96936521 A EP 96936521A EP 96936521 A EP96936521 A EP 96936521A EP 0857099 A1 EP0857099 A1 EP 0857099A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- disk
- grinder
- bristles
- working zone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
- B24D13/06—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery the flaps or strips being individually attached
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/06—Arrangement of mixed bristles or tufts of bristles, e.g. wire, fibre, rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
- B24B23/028—Angle tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
- B24D13/10—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
- B24D13/147—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising assemblies of felted or spongy material; comprising pads surrounded by a flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/20—Mountings for the wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/18—Wheels of special form
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/30—Brushes for cleaning or polishing
- A46B2200/3093—Brush with abrasive properties, e.g. wire bristles
Definitions
- This invention relates to the field of disc-shaped rotating abrading tools of the type having manufactured surfaces for abrading and forming materials, and in particular this invention relates to a wire brush accessory which is adapted for use with a hand-held angle grinder.
- a number of applications in the construction or repair of solid articles involve the selective removal of material from a bulk in order to produce a desired conformation or shape.
- a builder may remove some wood from a beam in order to produce a neat fit - more likely if the house being built is non-rectangular;
- a foundry removes surplus metal from sprues or joints between mould parts when producing a casting:
- a wood carver selectively removes wood in order to produce a carving;
- a panel beater frequently removes surplus plastic filler which was placed within a defect in an automotive panel to build it up, so that the outline conforms with the original outline of the panel; or a boat builder may have to remove kilograms of material, such as lead-filled fibreglass when shaping or repairing a hull.
- a first aspect comprised an accessory for a grinder including a rotatable tool having a shape substantially that of a disk, having an axis of rotation and capable of being mounted on an arbor of an angle grinder, characterised in that the rotatable tool is provided with at least one working zone within an active zone extending inwardly from the perimeter of the tool; and rest means extending substantially inwardly from the working zone of the tool, which rest means is displaced from the working zone along the line of the axis of rotation.
- the working zone is co-extensive with the active zone.
- the previous Aplication comprises an accessory for a grinder characterised in that the rest means is concentric with and supported on the rotatable tool.
- the previous Application comprises an accessory for a grinder characterised in that the rest means comprises a portion of a convex working surface of the rotatable tool and the rest means includes at least one rubbing surface located between the active zone and the axis of rotation.
- the previous Application comprises an accessory for a grinder characterised in that the rest means comprises a fixed rubbing surface or nose supported on the angle grinder and displaced so as to be supported beyond the rotatable tool. (By “beyond” we mean beyond the end of the arbor, or below the tool as it is normally held).
- the previous Application comprises an accessory for a grinder comprising a rotable tool characterised in that the working zone comprises at least one area within the active zone of the rotatable tool, and the active zone surface extends radially inward over the working surface from the perimeter for up to two thirds and preferably one third ofthe radius of the rotatable tool .
- the invention provides a further extension of the general concepts embodied in the previous Application described above.
- the invention provides an accessory for a grinder comprising a rotatable disk-shaped tool, having an axis of rotation and adapted to be mounted on an arbor of an angle grinder, the accessory being provided with a working zone located on the rotatable disk-shaped tool and extending inwardly from the perimeter of the tool; and rest means extending substantially inwardly from the working zone of the tool, which rest means is located radially inward from the working zone and displaced along the line of the axis of rotation of the tool and away from the grinder, characterised in that the working zone of the rotatable tool is provided with a plurality of stiff bristles capable of performing a cutting or abrading action when in rotational motion, the bristles projecting from the surface of the working zone and the length of he bristles being such that a portion of the rest means can be contacted with a work surface without contact occurring between the bristles and the work surface.
- the invention comprises an accessory for a grinder characterised in that at least one viewing aperture is provided through the disk of the rotatable tool and in which at least one viewing aperture may, when the tool is rotating, also serve to cause air movement.
- the invention comprises an accessory for a grinder characterised in that a central recessed mounting aperture is provided with gripping means or clutch means capable of disengagement substantially as long as a torque applied between the rotatable spindle and the tool exceeds a predetermined amount.
- the invention comprises an accessory for a grinder characterised in that the central recessed mounting aperture is provided with resilient mounting means capable of reducing vibration.
- the invention comprises a hand-held grinder system for use in shaping a surface, including a disk-shaped rotatable abrading tool mounted on a rotatable spindle, an active zone on said rotatable abrading tool, which active zone comprises a least one working zone comprising stiff bristles capable of removing material from the work surface, and rest means (a rest zone), which rest means, in use, permits control ofthe shaping action ofthe grinder system by first contacting the rest means with the work surface and then tilting the grinder system to cause or increase engagement of the bristles in the working zone with the work surface.
- the invention comprises a hand-held grinder system as described previously, wherein the rest means comprises a rubbing surface provided with rotational bearing means, which preferably moves on the same axis as the disk-shaped tool, so that in use the rubbing surface may rotate independently of the rotatable tool.
- the invention comprises a rotatable abrading tool suitable for a hand-held grinder system as described previously, in which at least one viewing aperture is provided through the tool and in which at least one viewing aperture may when the tool is rotating also serve as to cause air movement.
- the invention comprises a rotatable abrading tool suitable for a hand-held grinder system as described previously, wherein a central mounting aperture is provided, the aperture being adapted for attachment to the rotatable spindle.
- the invention comprises a rotatable tool as described previously, wherein the central recessed mounting aperture is provided with clutch means capable of disengagement while a torque applied between the rotatable spindle and the tool exceeds a predetermined amount.
- the invention comprises a rotatable tool as described previously, wherein the central recessed mounting aperture is provided with resilient mounting means capable of reducing vibration caused by eccentricity.
- the means for attachment of the tool comprises a shaped depression, shaped to match the profile of an arbor and nut.
- the nut includes means to impose a grip on the tool using static friction, and preferably the static friction is overcome at a torque less than that which can damage a means for driving the rotary shaft.
- the tool is adapted for use with an ordinary angle grinder.
- it may be adapted for use with other rotatable powered machines.
- the angle grinder may be fitted with a guard, in order to control swarf.
- the invention comprises a method for shaping material, comprising the steps of (a) causing a tool according to the above description having viewing apertures therein to be affixed to an angle grinder or the like, (b) applying power to the angle grinder motor, (c) holding the tool against the work while tilted at a low angle to it (so that the rest means contacts the surface but the working surface is not engaged) and raising the tilt to a higher angle so that the working surface contacts the work surface with a controlled pressure, and (d) drawing the tool towards the user meanwhile having the opportunity to view the work through apertures in the rotating tool.
- the tool is adapted for mounting upon the spindle or arbor of an angle grinder tool and for this purpose the tool is provided with an optionally threaded central mounting aperture.
- the border of the central aperture is depressed towards the inner surface of the tool.
- the tool is made of mild steel although alternatively it may be made from a hardenable metal or alloy or from a plastics material.
- the tool may be made by other processes, including pressure die-casting.
- a mild steel disk 2 to 6 mm thick provides the basi of the tool.
- the disk may be flat and in this case there may be two active zones, one on each major surface,, although only one can be used at one time.
- the disk is deformed into a conical or curved profile with at least the active zone ofthe outer surface being a convex surface.
- Fig 2 shows a variety of wire brush disks, in section, suitable for an angle grinder. These are shown as complete disks because the prototype (see Fig 3) was made in this way. In Fig 2, the lower version is preferred over the upper version (for most purposes) because the longer bristles have a longer distance in which to flex and should last longer before breaking. Note that in both versions the disk has a central "bare" zone which may be used as a rest zone in accordance with the principles of the invention. (3002 and 3004 represent means for attachment to the arbor of an angle grinder). Fig 3 shows a face view 3100 of a prototype wire brush disk for an angle grinder.
- the outer perimeter of the tool is provided with a plurality of stiff bristles or wires capable of performing a cutting or abrading action when spinning at typical angle grinder speeds.
- stiff bristles or wires capable of performing a cutting or abrading action when spinning at typical angle grinder speeds.
- these were made by manually fitting bristles though holes drilled in a blade, and gluing them into place after adjusting for length.
- a number of viewing holes 3101 have been made (also useful for enhancing air movement and possibly their edges are also useable for cutting) and a number of bristles of a suitable iron or steel wire have been embedded in the disk towards its peri ⁇ heiy, as shown at 2302.
- a side view of one of the bristled sectors is shown at 3 104, with protruding bristles 3103..
- the materials from which the bristles are made are preferably steel or other alloys of iron but other extrudable metals such as copper, brass, bronze, tungsten and the like can be used depending on the toughness requirements imposed by the intended applications In some situations ceramic fibers may be substituted for the metal fibers providing the bristles.
- Suitable ceramic bristles include alumina fibers.
- Fig 1 shows three general optional profiles for the basic tool member useful in the present invention (without the bristles).
- Fig _' ⁇ shows a variety of wire brush disks for an angle grinder.
- Fig 2 shows a face view of a wire brush disk for an angle grinder.
- Fig 4 shows the method whereby an angle grinder incorporating a tool according to the invention, (minus the bristles), is used. The tool is inclined about the rest point in order to engage, or further engage, the active contact zone with some work material.
- Eig 5_ shows a type of guard for a grinder system, including a central mound or protrusion capable of being used as a rest point, hence better control of the tool is possible. This type of system is particularly useful where the tool is flat.
- Fig £ shows a type of resilient central mount for a tool according to the invention.
- Fig 2 shows an alternative clutch and central resilient mount for a disk.
- the invention provides a hand-held grinder system; as practically all of these are for the type of machine known as an angle grinder we shall predominantly refer to angle grinders.
- the invention will be more particularly described with reference to the above Drawings.
- a rest point - comprising means to lean or rest the tool on the work surface, while in use, and from that rest point, gradually slope or incline the machine until the bristles in the working zone of the tool start abrading the work surface. From this time the machine may be slid or "stroked" preferably towards the operator.
- the apertures or viewing holes in the tool permit the surface being treated to be inspected prior to abrading.
- a “system” because we can provide the rest means on the body of the angle grinder; most conveniently as part of a guard beneath a portion of the wheel (Figs 4 and 5) or because we can provide that the rest means is located on the spinning disk, where it may form:-
- the tool is adapted to be used with a conventional angle grinder of the widely used type having a typical no-load rotation speed of 1 1 ,000 rpm, driven usually by a universal (AC/DC) brush motor.
- Conventional angle grinders provide a drive shaft onto which various discs (normally of abrasive material) may be mounted and spun at a high speed.
- a typical angle grinder is the single-speed 1 15 mm grinder sold as the "AEG WSL1 15" (TM) (600 watts). This size of motor provides an acceptable power for the prototype disks.
- a variable-speed angle grinder may be an advantage.
- the work-material and the working surface of the disk are brought together so that the work-material approaches the working zone from the centre ofthe disk and the trailing edge of the working zone is the disk edge.
- the work at or close to the site of the abrading is partially visible through holes cut through the disk.
- the preferred movement is to drag the tool towards the user, or stroke it over the work material, while the working zone engages the material.
- the preferred apertures allow the user to see, through the disk, the site where the tool is about to cut or abrade. There is relatively little or no "kick" from the tool (not often the case with ordinary angle grinder tools or saw-like modifications,), and it is easy to hold and control the machine during operation in order to carry out relatively fine movements.
- the angle made by the handle of the angle grinder to the work is typically about 30 degrees, (varied by the user from about 15 degrees to about 40 degrees) using the example cutter, but this depends on the shape to be formed.
- the angle allows the effective tooth protrusion amount to be varied.
- Fig 4 illustrates this method, (minus the bristles for the sake of clarity), in which the rest means is a nose (left side series) or a rubbing surface.
- the rest means is a nose (left side series) or a rubbing surface.
- the rest means is a nose (left side series) or a rubbing surface.
- At the left are three variations (2201 , 2202. and 2203) of tilt (respective to a work surface 2200) of an angle grinder with a nose 2205 and a flat disk 2204; wherein the grinder system is being tilted on its nose 2205 so that the rotating disk 2204 approaches the work. In the centre left drawing the disk is just contacting the work.
- Fig 4 In the lowest left drawing it has eaten into the work at 2206.
- the rubbing surface 2205 (which in this example is part of the rest zone ans also a part of the actual disk) moves towards the periphery until in the lowest drawing the bristles on the disk, (not shown), are abrading the work surface at 2206.
- the disk Under full working load the disk has a rotation speed of 8,000 rpm, which approximates, for a disc having four distinct working areas in the active zone, (as shown for example in Figure 3), 32,000 abrading actions per minute.
- the operator uses the sound ofthe loaded motor as a guide in adjusting the speed of abrading.
- Disks can be curved in profile, or include a conic section, or in some cases may be flat. At the disk centre we prefer to provide a profile that mates with an arbor though optionally each abrading disk may include a thread for direct mounting, perhaps with a spacing washer.
- the conic or curved profile can be a separate part of a disk.
- the overall diameter is set by the abrading disk guard and generally ranges from about 4 to 4.5 inches ( 100- 1 12 mm) for a nominally 4.5 inch angle grinder.
- the first prototype was made by spinning a heated disk of mild steel on a lathe. Other methods of forming a metal disc include stamping and shaping from sheet stock, or using laser-cutting techniques (particular for hole cutting), then pressing in a die.
- a abrading disk of a plastics material may be made by the usual techniques such as injection moulding and optionally these techniques include provision of a fibrous base or core about which a matrix is formed.
- Flat-bladed disks with annular attachments can also be produced according to this invention.
- a kind of dome nut can be used as part ofthe attachment of the disk to the grinder drive shaft.
- the head of this dome nut is held in rubbing or sliding contact with the work, and the cutter is tilted so that the bristles dig in at a suitable rate.
- the dome nut may be shaped more like a mushroom, but then the increased radial velocity of the surface in contact leads to increased friction, wear, and reaction forces.
- a separately mounted domed spacer may be used.
- This can be, at least in part, rotationally mounted — for example, on a ball-bearing — so that it may come to rest rather than rub on the surface of the work, and provide a rest zone as a non-rubbing surface without friction.
- the friction generated by sliding at the rubbing surface may cause local burning, melting, difficulty of control, and damage to the surface. This improvement overcomes that problem.
- FIG 5 illustrates a hard "nose” 2101 of for example hardened steel, chromium alloy, or for some applications a low-friction nose of PTFE plastic (polytetrafluorethane or "Teflon (TM)") which is attached to the centre of a partial guard 2102 attached beneath the abrading disk of an angle grinder 2103.
- the beneath view B depicts an aperture 2104 which is intended for the ejection of waste material - swarf and the like.
- the side view A shows a flat disk type of abrading disk 2105 which is provided with bristles, (not shown), presented to the edge 2106.
- the guard 2102 may be provided with a hinge and catch mechanism (not shown) so that it can flip open to allow the abrading disk to be cleaned or changed.
- Part C of this drawing shows an abrading disk 2108 having a dished profile and the adjacent nose 2101 and guard 2102. This presents a more nearly parallel alignment of tooth edges to a sheet of work material and is for example more suited to hand planing.
- This modification to provide a grinder system having rest means is not incompatible with the extra guard 1705 offered in Fig 17 for the upper surface ofthe disk.
- Perforations in the disk are provided in part so that the user can see the material to be abraded through the spinning disk as the tool working zone is drawn towards the user.
- the perforations are circular or at least have no sharp or narrow corners because of the risk of propagation of cracks from stressed areas. Holes 24 mm in diameter have been suitable.
- the holes are preferably equidistant from the centre but this arrangement is not essential.
- hole positions should be selected so as to retain the balance of the disk, and disks may be balanced dynamically by removing material from hole edges.
- the perforations may also aid in stirring the air so that any swarf is carried by the moving air and is ejected further or more effectively.
- the holes may be racked (drilled obliquely) or pitched. They may also be used as clamping points for a jig for alignment ofthe abrading disk in automated sharpening operations.
- Holes are a preferred option for the disks of the invention; providing visibility of the work about to be abraded, and aiding (especially if raked) in stirring and moving the air.
- the preferred embodiment has three equally spaced holes. Other combinations which place various holes at different distances from the centre may be used; although it is always preferable to maintain static and dynamic balance in rapidly rotating disks.
- MOUNTING MEANS We have provided a central threaded aperture in our prototypes. Generally a spacer or thrust washer of approximately 10 mm thickness is used about the arbor or spindle of the angle grinder, beneath the concave face of the disk, so that its spinning edges clear the guard of the angle grinder; although a suitably pressed abrading disk having a depressed mounting hole may not require the use of a spacer. Conveniently the threaded disk prototypes do not bind onto the angle grinder during use.
- FIG. 1 shows at 1900 a resilient central mount for a wheel 1901, having among other purposes the objective of minimising the effect of wheel imbalance on tool vibration.
- the resilient material (which is illustrated as 1906) is contained within a housing 1904 attached to the wheel, while a central threaded collar 1907 surrounding an aperture 1902 is attached to a fin 1905 running deeply into the resilient material, which is generally a type of rubber.
- the small gap may be at the outside, and the inner gap may be an interference fit.
- the fin 1905 may slip inside the further layer of metal.
- the base of the threaded collar (by 1907) serves as a nut to lock the wheel onto the arbor of the grinder.
- Fig. 7 shows at 2400 an alternative clutch and central resilient mount to that of Fig 6 for use with a tool base or disk.
- the clutch is designed to allow slippage when the torque applied to the tool is greater than a preset amount. It may include a "chatterbox" of some type to give an audible indication of slippage, and one way of providing this is to place several ball bearings 2402 between the disk and the resilient mount so that the balls click into or out recesses if the clutch slips.
- the portion of the resilient mount threaded onto the arbor of the angle grinder has a cone-shaped projection (as seen in section 2401 ) into the resilient material.
- Advantages of preferred forms of this invention include: 1 . Material is removed quickly.
- the material of the disk need not be high-quality steel as is the case for circular saw blades, for example. 6.
- the work applied to the tool ie. the power consumption of the grinder
- the work applied to the tool is usually low enough to enable a rechargeable battery-operated grinder to be used.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Golf Clubs (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Adornments (AREA)
- Walking Sticks, Umbrellas, And Fans (AREA)
- Toys (AREA)
- Food-Manufacturing Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ28029295 | 1995-10-19 | ||
NZ280292A NZ280292A (en) | 1995-10-19 | 1995-10-19 | Accessory for angle grinder as rotatable annular tool with rest means for supporting grinder |
PCT/US1996/016511 WO1997014538A1 (en) | 1995-10-19 | 1996-10-15 | Wire brush attachment for angle grinder |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0857099A1 true EP0857099A1 (en) | 1998-08-12 |
EP0857099B1 EP0857099B1 (en) | 2000-03-15 |
Family
ID=19925513
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96936521A Expired - Lifetime EP0857099B1 (en) | 1995-10-19 | 1996-10-15 | Wire brush attachment for angle grinder |
EP96936514A Expired - Lifetime EP0855949B1 (en) | 1995-10-19 | 1996-10-16 | Accessories and attachments for angle grinder |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96936514A Expired - Lifetime EP0855949B1 (en) | 1995-10-19 | 1996-10-16 | Accessories and attachments for angle grinder |
Country Status (9)
Country | Link |
---|---|
EP (2) | EP0857099B1 (en) |
AT (2) | ATE190545T1 (en) |
AU (2) | AU695972B2 (en) |
DE (2) | DE69607194T2 (en) |
DK (2) | DK0857099T3 (en) |
ES (2) | ES2146909T3 (en) |
NZ (1) | NZ280292A (en) |
WO (2) | WO1997014538A1 (en) |
ZA (2) | ZA968396B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6722955B2 (en) | 2001-01-10 | 2004-04-20 | 3M Innovative Properties Company | Buckup plate assembly for grinding system |
JP2003145431A (en) * | 2001-11-15 | 2003-05-20 | Riken Diamond Industry Co Ltd | Method for manufacturing diamond cutter |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2740980A (en) * | 1953-02-25 | 1956-04-10 | Charles T Asbury | Apparatus for cutting and abrading |
DE2502698A1 (en) * | 1975-01-23 | 1976-07-29 | Philippin Gmbh & Co Kg Ernst | Tool for removing protective coating from pipe fittings - is used with electric hand drill for heating installations and consists of wire brush suitable for cleaning inside pipe |
DE3541348C1 (en) * | 1985-07-18 | 1987-01-02 | Gerd Eisenblaetter | Fan face grinding wheel |
DE3539666C1 (en) * | 1985-11-08 | 1986-09-18 | RSA Entgrat-Technik Rainer Schmidt, 5880 Lüdenscheid | Motor-driven, manual machine for deburring, especially perforated or punched sheets |
GB2207626A (en) * | 1987-08-04 | 1989-02-08 | Nippon Tenshashi Kk | Abrasive polishing element |
US4835912A (en) * | 1987-11-30 | 1989-06-06 | Aleck Block | Abrasive wheel |
DE9214144U1 (en) * | 1992-10-20 | 1992-12-10 | Chang, Jen Chih, Wu Jih Shzang, Taichung | Polishing brush with polishing units containing steel bristles |
AU675753B2 (en) * | 1994-05-03 | 1997-02-13 | Norton Company | Accessory for an angle grinder |
-
1995
- 1995-10-19 NZ NZ280292A patent/NZ280292A/en not_active IP Right Cessation
-
1996
- 1996-10-04 ZA ZA968396A patent/ZA968396B/en unknown
- 1996-10-09 ZA ZA968523A patent/ZA968523B/en unknown
- 1996-10-15 EP EP96936521A patent/EP0857099B1/en not_active Expired - Lifetime
- 1996-10-15 DK DK96936521T patent/DK0857099T3/en active
- 1996-10-15 WO PCT/US1996/016511 patent/WO1997014538A1/en active IP Right Grant
- 1996-10-15 ES ES96936521T patent/ES2146909T3/en not_active Expired - Lifetime
- 1996-10-15 AU AU74337/96A patent/AU695972B2/en not_active Ceased
- 1996-10-15 AT AT96936521T patent/ATE190545T1/en active
- 1996-10-15 DE DE69607194T patent/DE69607194T2/en not_active Expired - Lifetime
- 1996-10-16 DK DK96936514T patent/DK0855949T3/en active
- 1996-10-16 WO PCT/US1996/016501 patent/WO1997014537A1/en active IP Right Grant
- 1996-10-16 EP EP96936514A patent/EP0855949B1/en not_active Expired - Lifetime
- 1996-10-16 AT AT96936514T patent/ATE192685T1/en active
- 1996-10-16 ES ES96936514T patent/ES2149503T3/en not_active Expired - Lifetime
- 1996-10-16 AU AU74329/96A patent/AU695973B2/en not_active Ceased
- 1996-10-16 DE DE69608293T patent/DE69608293T2/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9714538A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU7433796A (en) | 1997-05-07 |
DE69607194T2 (en) | 2000-11-09 |
EP0855949B1 (en) | 2000-05-10 |
WO1997014537A1 (en) | 1997-04-24 |
WO1997014538A1 (en) | 1997-04-24 |
AU695972B2 (en) | 1998-08-27 |
DK0857099T3 (en) | 2000-08-21 |
ATE192685T1 (en) | 2000-05-15 |
DE69607194D1 (en) | 2000-04-20 |
ZA968523B (en) | 1997-05-20 |
ES2149503T3 (en) | 2000-11-01 |
AU7432996A (en) | 1997-05-07 |
AU695973B2 (en) | 1998-08-27 |
ATE190545T1 (en) | 2000-04-15 |
ZA968396B (en) | 1997-05-13 |
NZ280292A (en) | 1999-11-29 |
DE69608293D1 (en) | 2000-06-15 |
DE69608293T2 (en) | 2001-01-25 |
DK0855949T3 (en) | 2000-10-02 |
ES2146909T3 (en) | 2000-08-16 |
EP0855949A1 (en) | 1998-08-05 |
EP0857099B1 (en) | 2000-03-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2187017C (en) | Accessory for an angle grinder | |
US6280309B1 (en) | Accessories and attachments for angle grinder | |
JP5036977B2 (en) | Brush unit | |
JP3479083B2 (en) | Grinding disc holding plate | |
TW200800485A (en) | Oscillating grinding machine | |
EP2103394A1 (en) | Automatic shift dual-action tool | |
JP2004358648A (en) | Saw blade | |
US6173470B1 (en) | Brush attachment for grinder | |
US6244947B1 (en) | Wire brush attachment for angle grinder | |
AU695972B2 (en) | Wire brush attachment for angle grinder | |
US20020078813A1 (en) | Saw blade | |
JPH10179808A (en) | Burr removing method for golf ball | |
JP2006020627A (en) | Safety device for bush cutter | |
CA2380930C (en) | Brush attachment for grinder | |
JPS62259759A (en) | Surtface polishing device having rotary body whose cutting edge is retractable | |
CN211889256U (en) | Carbide saw bit dish processing equipment | |
JPH0618772Y2 (en) | Hand grinder | |
WO1997038814A1 (en) | Rotating sanding accessory |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19980519 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB IT LI SE |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 19990421 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB IT LI SE |
|
REF | Corresponds to: |
Ref document number: 190545 Country of ref document: AT Date of ref document: 20000415 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 69607194 Country of ref document: DE Date of ref document: 20000420 |
|
ITF | It: translation for a ep patent filed |
Owner name: DOTT. FRANCO CICOGNA |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: BOVARD AG PATENTANWAELTE |
|
ET | Fr: translation filed | ||
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2146909 Country of ref document: ES Kind code of ref document: T3 |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PFA Owner name: NORTON COMPANY Free format text: NORTON COMPANY#1 NEW BOND STREET, BOX NO. 15138#WORCESTER, MASSACHUSETTS 01615-0138 (US) -TRANSFER TO- NORTON COMPANY#1 NEW BOND STREET, BOX NO. 15138#WORCESTER, MASSACHUSETTS 01615-0138 (US) |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20130923 Year of fee payment: 18 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20130923 Year of fee payment: 18 Ref country code: DE Payment date: 20130920 Year of fee payment: 18 Ref country code: FR Payment date: 20131028 Year of fee payment: 18 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 69607194 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 190545 Country of ref document: AT Kind code of ref document: T Effective date: 20141015 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20141015 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20141015 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150501 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20150630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20141015 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20141031 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20150922 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20150925 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DK Payment date: 20150923 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20150925 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20151006 Year of fee payment: 20 Ref country code: BE Payment date: 20150924 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: EUP Effective date: 20161015 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: EUG |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20170126 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20161016 |