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| Number | Title | Issue Date |
| 7357702 | Grinding wheel The present invention refers to an improved grinding wheel, comprising an abrasive and/or cutting disk-shaped member that can be associated substantially coaxially with the free end of the rotating shaft of a grinding machine and equipped with at least one substanti... | 04/15/2008 |
| 7310851 | Cleaning device with disposable cleaning element A cleaning device has a cleaning element having an axis, an axial inner region and an axial outer region and being formed so that at least the axially outer region is bendable to follow a shape of a surface to be cleaned when pressed against the surface, a holding e... | 12/25/2007 |
| 7189152 | Height adjustment system for rotating tools A height adjustment mechanism for varying the positioning of a rotating tool on a haft of a machine tool, such as a portable power tool, is in the form of a coupler between the blade and tool arbor. A head of the coupler accepts the tool and connects with a tool dri... | 03/13/2007 |
| 7115028 | Coupling structure for grinding members A coupling structure for grinding members adopts a removable structure to fasten a grinding member to a pneumatic tool. One or more grinding member may be mounted on the coupling structure according to requirements. The coupling structure may be used repeatedly to r... | 10/03/2006 |
| 7094140 | Abrasive sanding surface An abrasive sandpaper system having a backing plate (16) with a canted outer periphery (28) and an off-centered aperture (26) for interlocking with lugs (18) of a power driver (12). The sandpaper (30) has a canted outer peri... | 08/22/2006 |
| 7056200 | Quick change connector for grinding wheel An abrasive article for a grinder having a motor-driven, externally-threaded spindle. The abrasive article includes a molded abrasive disk with an integrally molded fastener. The molded abrasive disk includes abrasive particles disbursed in a binder. The molded abra... | 06/06/2006 |
| 7014549 | Polishing pad and method of making the same A polishing pad for polishing curved surfaces has a pad element having an axis, a central opening adjoining the axis and forming an inner edge, and an outer peripheral edge, first engaging means provided on the outer peripheral edge for engaging an outer periphery o... | 03/21/2006 |
| 6945863 | Rotary finishing disc A flap disc includes a backing disc having an inner radial portion and abrasive flaps secured to an outer radial portion of the backing disc in an overlapping manner. First and second metal reinforcement rings include a body contacting one of front and rear surfaces... | 09/20/2005 |
| 6945862 | Power tool having a receptacle for securing a tool A power tool having a receptacle for securing a tool to a drive shaft thereof is disclosed. The receptacle comprises a receiving opening, preferably being arranged on the tool. The receiving opening engages a securing section preferably being provided in a raised fa... | 09/20/2005 |
| 6942559 | Polishing device The polishing device has a shank and at least one polishing disk arranged on one end of the shank, that can be friction-fixed by two stops one opposite another. The polishing device has a protective element preventing contact between the surface to be polished and t... | 09/13/2005 |
| 6939089 | Surform file holder with tensioning adjustment A file holder configured to attach a prior art surform file to a prior art linear sander. The file holder includes conventional mounting means allowing it to be attached to the linear sander. A clip recess is provided on the file holder's first end. This feature is ... | 09/06/2005 |
| 6893335 | Mounting device for abrasive wheels A reusable mount for an abrasive device (14) including a nut (12) and a support unit (10). The nut (12) includes a threaded barrel (20) and a flange (22). The barrel extends through a central opening (15) in the abras... | 05/17/2005 |
| 6840849 | Mounting device for coated abrasive finishing articles A reusable mounting device which includes a support member having a support pad (32) secured to a hollow cylindrical body (42) by way of a compression ring (46). The hollow body defines a recess which receives a nut (18) that is adapted t... | 01/11/2005 |
| 6796888 | Power tool having a receptacle for securing a tool A power tool having a receptacle for securing a tool to a drive shaft thereof is diclosed. The receptacle comprises a receiving opening, preferably being arranged on the tool. The receiving opening engages a securing section preferably being provided in a raised fas... | 09/28/2004 |
| 6676499 | Male/female abrasive disk/wheel mounting member and subsequent abrasive mounting systems An abrasive disk mounting system and a grinding system are provided. The mounting system permits both primary abrasive disks (typically having a diameter greater than about 5 inches) and secondary abrasive disks (typically having a diameter from about 1.5... | 01/13/2004 |
| 6626747 | Abrasive pad The invention is directed to an improved abrasive pad (15). In the preferred embodiment, the abrasive pad is comprised of an inner core (16) having an outer surface (19), a strip of abrasive material (18), the strip of abrasive material wrapped around the... | 09/30/2003 |
| 6569001 | Power tool having a quick clamping mechanism The invention relates to a power tool, in particular to an angle grinder, having a quick clamping device for fastening of a tool between a clamping flange and a counter flange. Such quick clamping devices are usually equipped with an actuation element, du... | 05/27/2003 |
| 6530828 | Supporting plate for rotating tools for the fine machining of surfaces Supporting plate for rotating tools for fine machining of surfaces, such as grinding or polishing with a front working surface or an adhering surface for detachably mounting a grinding, polishing, or similar working medium disk, having a rear driving conn... | 03/11/2003 |
| 6379234 | Reusable mount for abrasive devices A reusable quick change mount including a support unit or backing member and a threaded retainer member or nut having a barrel which is received within a bore in the support unit. A resiliently deformable member is disposed within the bore of the support ... | 04/30/2002 |
| 6368187 | Abrading/polishing device and method of making and using same An improved polishing wheel comprising the combination of a flanged arbor nut having a stack of abrasive elements secured thereon by means of a push on retainer nut and a threaded mandrel, the distal end of which is adapted to be engaged by the chuck of a... | 04/09/2002 |
| 6319104 | Tool for resurfacing machine A tool for use in an abrading or resurfacing machine includes a head portion, a shank portion and a base portion, the shank portion joining the head and base portions and having a shape that tapers outwardly from a narrow neck where it joins the head port... | 11/20/2001 |
| 5733183 | Clamping device for axially clamping a disk-shaped tool A clamping device for axially clamping a disk-shaped tool member on a shaft of a working tool has a pressure member for force-lockingly clamping the tool member between a radial surface of the shaft and the pressure member. A ring mount for force-loading ... | 03/31/1998 |
| 5637033 | Flapper wheel adapter An easy-to-use adapter assembly having a minimum number of component parts that will permit sanding flapper wheels of various sizes to be conveniently used in the field with portable hand held electric grinders of conventional design. The assembly is pref... | 06/10/1997 |
| 5538464 | Disposable abrasive wheel having disposable mounting hub including improved metal pressure cap and method of manufacturing the same A disposable abrasive wheel for mounting on a rotatable threaded spindle of a power tool. The abrasive wheel contains a retaining nut on one side and a backing member on the other side non-removably secured together on the abrasive wheel without the aid o... | 07/23/1996 |
| 5518440 | Power tool flange lock A flange lock 10 for retaining a disc or blade on a spindle of a power tool and for facilitating removal therefrom, comprising a support member 22 for threadedly engaging a spindle of a power tool, a plurality of cam devices 30 mounted through the support... | 05/21/1996 |
| 5339571 | Tool element subassembly A tool element subassembly, such as an abrasive disc subassembly, for mounting to the spindle of a grinder. The subassembly includes an abrasive disc, a collar nut and, optionally, a backing flange. The central bore in the abrasive disc as well as the hub... | 08/23/1994 |
| 5299391 | Flapper wheel adapter An easy-to-use adapter assembly that will permit sanding flapper wheels of various sizes to be conveniently used in the field with portable hand held electric grinders of conventioonal design. The assembly is preferably sold as a set that includes connect... | 04/05/1994 |
| 5249325 | Brush and bonnet carpet cleaning assembly A rotary clutch shaft of a floor machine removeably receives and rotates a brush block having downwardly protruding circumferentially arranged brushes protruding from the periphery of the brush block. Hooks which protrude from the bottom of the block, rem... | 10/05/1993 |
| 5207028 | Tool element subassembly and method of manufacturing same A tool element subassembly, such as an abrasive disc subassembly, for mounting to the spindle of a grinder. The subassembly includes an abrasive disc, a collar nut and, optionally, a backing flange. The central bore in the abrasive disc as well as the hub... | 05/04/1993 |
| 5142829 | Abrasive article The present invention relates to an abrasive article comprising an aligned row of connected abrasive sheet members each having a main portion, an aperture formed in the main portion, and a plurality of arm portions perimetrically spaced about the main por... | 09/01/1992 |
| 5031361 | Disposable finishing article having integral mounting hub including improved metal pressure cap A disposable finishing article for mounting on a rotatable threaded spindle of a power tool. The finishing article contains a retaining nut on one side and a backing member on the other side non-removably secured together on the finishing article without ... | 07/16/1991 |
| 4979336 | Disposable finishing article having an integral mounting hub including an improved metal pressure cap A disposable finishing article for mounting on a rotatable threaded spindle of a power tool. The finishing article contains a retaining nut on one side and a backing flange on the other non-removably secured together on the finishing article without the a... | 12/25/1990 |
| 4977712 | Hand sander A hand tool for sanding, including a C-shaped frame securing a strip of abrasive material in which the strip is reinforced with strapping material laminated to its back and the ends of the strip are secured to the frame by a wedge means.... | 12/18/1990 |
| 4951423 | Two sided abrasive disc with intermediate member A finishing article comprising a backing member defining a central opening and having two opposed surfaces each carrying an abrasive material thereon; an intermediate member, having a central bore therethrough, being positioned in the opening and attached... | 08/28/1990 |
| 4934107 | Finishing article having an integral mounting hub and improved composite pressure cap A disposable finishing article for mounting on a rotatable threaded spindle which may be used with a power tool. The finishing article contains a retaining nut on one side and a backing flange on the other non-removably secured together on the finishing a... | 06/19/1990 |
| 4890422 | Abrasive tool This invention relates to an abrasive tool for grinding and polishing. A disk, which may consist of an abrasive disk or may carry a buffing pad consisting of an abrasive-containing woven fabric, is connected to a shaft that is adapted to be gripped by a d... | 01/02/1990 |
| 4888843 | Holder for rotary pad Apparatus for mounting a pad to a rotary floor machine includes an internally threaded drive collar mounted in coaxial relation with a drive shaft. The teeth of the thread on the collar have a sawtooth profile with an inclined lead-in surface and a holdin... | 12/26/1989 |
| 4809467 | Flexible grinding disk and grinding method Grinding disk and method for finishing a workpiece having irregularities thereon, having a highly flexible inner portion and an outer annular face portion having sufficient flexibility to enable such annular portion to be substantially deformed by the irr... | 03/07/1989 |
| 4794737 | Universal backing flange A coupling flange for use on a power tool such as a portable grinder for transferring torque loads from the motor-driven spindle of the tool to a tool element subassembly such as an abrasive disc subassembly. The coupling flange is designed to accommodate... | 01/03/1989 |
| 4760670 | Disposable depressed center grinding wheel having an integral mounting hub A disposable depressed center grinding wheel for mounting on a rotatable threaded spindle of a power tool. The grinding wheel contains a retaining nut on one side and a backing flange on the other non-removably secured together on the grinding wheel witho... | 08/02/1988 |
