Abrading inventions 08/07

20070202774 - Gear grinding machine, method for dressing threaded grinding wheel and method for grinding work: A gear grinding machine, a method for dressing a threaded grinding wheel, and a method for grinding a work are disclosed. A dressing tool is rotated in a vertical plane, with its position being fixed. The position of a threaded grinding wheel is NC-controlled, whereby the dressing tool is brought... Agent: Birch Stewart Kolasch & Birch

20070202776 - Process for monitoring the setting of the coolant nozzle of a grinding machine: g

20070202775 - Eyeglass lens processing system: An eyeglass lens processing system for processing an eyeglass lens includes a main processing apparatus having a first lens chucks that chucks the lens, a roughing tool, a first bevel-finishing tool, a lens edge measuring unit that obtains an edge position of the lens on the basis of target lens... Agent: Sughrue-265550

20070202777 - Linearly advancing polishing method and apparatus: Continuous feeding of workpieces to an apparatus and effective use of the space around the apparatus are difficult in rotary abrasive finishing. To solve such problems, the present invention provides a conceptually novel method and apparatus for linear abrasive finishing. A pair of parallel flat surface plates adjacent in parallel... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20070202778 - Polishing apparatus: A polishing apparatus includes a polishing jig. The polishing jig includes an elastic balloon member, a fixture, and a fluid supply portion. The fixture airtightly closes the rear opening portion of the balloon member. The fluid supply portion supplies a fluid into a space formed by the fixture and balloon... Agent: Thelen Reid Brown Raysman & Steiner, LLP

20070202779 - Knife sharpening method and system: A method and system are disclosed. The system may include a device for sharpening a convex edge on the blade of a knife. The device may include a resilient material and a plurality of abrasive sheets of varying grit values. Each abrasive sheet may be removably attachable to a top... Agent: Duckor Spradling Metzger & Wynne A Law Corporation

20070202780 - Polishing pad having a surface texture and method and apparatus for fabricating the same: The present invention relates to a polishing pad having a surface texture and a method for fabricating the same. The fabricating method comprises the following steps: (a) providing a substrate which has a surface for polishing an object to be polished; (b) providing a freely movable high-energy laser; and (c)... Agent: Volentine & Whitt PLLC

20070202781 - Blast media nozzle and nozzle assembly: A novel blast nozzle and nozzle apparatus are provided to eliminate time and tooling requirements of prior art blast nozzles. The nozzle is utilizable with a union connector, which includes a connector body having an axial bore and a boss centrally disposed within the bore. The connector also has a... Agent: Stetina Brunda Garred & Brucker

20070202782 - Belt sander: A belt sander is disclosed that may include a sanding assembly having a first roller and a second roller, the sanding assembly being configured to receive a sanding belt around the first roller and the second roller to define a sanding surface therebetweeen. The belt sander may include a motor... Agent: Brake Hughes Bellermann LLP

20070202783 - Belt sander: A belt sander is disclosed that may include a sanding assembly having a first roller and a second roller, the sanding assembly being configured to receive a sanding belt around the first roller and the second roller to define a sanding surface therebetween. The belt sander may include a motor... Agent: Brake Hughes Bellermann LLP

20070202784 - Fixture for grinding apparatuses: A fixture (10) for grinding apparatuses includes a base (12), a plurality of supporting components (14), and a pressure controlling apparatus (16). The base includes a cavity (126) containing a fluid medium (129), and the base defines a plurality of through holes (122) communicating with the cavity. One section of... Agent: PCe Industry, Inc. Att. Cheng-ju Chiang Jeffrey T. Knapp

20070202785 - Multi-chamber carrier head with a textured membrane: A flexible membrane for use in a carrier head has a generally circular main portion with a lower surface, an annular outer portion for connection to a base assembly, and an annular flap extending from the main portion on a side opposite the lower surface for connection to the base... Agent: Fish & Richardson P.C.

20070197143 - Polishing pad of a chemical mechanical polishing apparatus and method of manufacturing the same: The surface(s) of a polishing pad for polishing an object has a first portion including hydrophilic material and a second portion including hydrophobic material. The first portion of the polishing surface is located in a first region of the polishing pad and the second portion of the polishing surface is... Agent: Volentine & Whitt PLLC

20070197142 - Tools for polishing and associated methods: Methods for making polishing tools and associated tools are disclosed. In one aspect, a method of making a polishing tool is provided. Such a method may include truing a working surface of a nano-diamond impregnated substrate. The method may further include forming asperities on the working surface with a polycrystalline... Agent: Thorpe North & Western, LLP.

20070197132 - Dechuck using subpad with recess: A method is described. The method includes supporting a polishing sheet having a polishing surface on a subpad having a recess formed therein, applying a vacuum to the recess sufficient to pull portions of the polishing sheet into the recess to induce a recess in the polishing surface, positioning a... Agent: Fish & Richardson P.C.

20070197131 - System for designing, previewing, and cutting natural stone veneer to deliver ready for installation: The present invention relates to a method of designing, previewing a stone veneer project in its entirety before a single stone is cut; cutting and finishing the edges of a stone to form interconnecting natural stone veneer components, each having a perimeter of a pre-determined contour and a finished edge,... Agent: Arendt & Associates Intellectual Property Group

20070197133 - Polishing article with integrated window stripe: A method is described. The method includes contacting a non-solid material to a non-linear edge of a sheet of polishing material, and causing the non-solid material to solidify to form a window that contacts the non-linear edge of the polishing material.... Agent: Fish & Richardson P.C.

20070197134 - Polishing article with integrated window stripe: A polishing article is described. The polishing article includes an elongated polishing layer, and a transparent carrier layer supporting the polishing layer, where the transparent carrier layer has a projection extending into an aperture in the polishing layer to provide a transparent window in the polishing layer.... Agent: Fish & Richardson P.C.

20070197135 - Device for polishing the edge of a glass sheet: The invention relates to a device for polishing the edge of a glass sheet. The invention is of the type that comprises: a drive shaft for rotating around the axis of rotation thereof by means of a motor, and a grinding wheel which is connected to the drive shaft in... Agent: Abelman, Frayne & Schwab

20070197136 - Automatic feeding device for a stone edge grinding machine: An automatic feeding device for a stone edge grinding machine, in which one end of the worm is connected to a stepping motor, and the other end of the worm is connected to a slipping sleeve which enables the worm to engage with or disengage from a worm gear mounted... Agent: Baker & Hostetler LLP

20070197137 - Belt sander: A belt sander is disclosed that may include a sanding assembly having a first roller and a second roller, the sanding assembly being configured to receive a sanding belt around the first roller and the second roller to define a sanding surface therebetweeen. The belt sander may include a motor... Agent: Brake Hughes Bellermann LLP

20070197138 - Method and apparatus to process substrates with megasonic energy: A variety of techniques may be employed, alone or in combination, to enhance contact between a processed substrate and applied megasonic energy. In accordance with one embodiment of the new invention, the vibration plate is brought into intimate contact with one surface of the substrate, while cleaning or processing fluid... Agent: Townsend And Townsend And Crew, LLP

20070197141 - Polishing apparatus with grooved subpad: A polishing apparatus is described. The polishing apparatus includes a rotatable platen, a drive mechanism to incrementally advance a polishing sheet having a polishing surface in a linear direction across the platen, a subpad on the platen to support the polishing sheet, the subpad having a groove formed therein, and... Agent: Fish & Richardson P.C.

20070197139 - Portable bimodal tile saw: A bimodal tile saw includes a tray supported on a base extending in a first direction and a water-cooled saw unit suspended from a telescoping arm. Both the tray and the saw unit move relative to the base along the first direction. In a first mode, the saw unit is... Agent: Glenn Patent Group

20070197144 - Wafer polishing apparatus: A wafer polishing apparatus includes a wafer mount mounting thereon a wafer for rotation, a pair of bell-shaped buff units opposing each other and rotated to polish the periphery of the wafer. The buff units each have an edge-surface polishing section having a shape adapted to half the edge surface... Agent: Young & Thompson

20070197145 - Polishing article with window stripe: A polishing article is described. The polishing article includes a linear polishing sheet having a linear transparent portion, wherein the linear transparent portion is formed from a material that has the flexibility to pass around a radius of about 2.5 inches without cracking.... Agent: Fish & Richardson P.C.

20070197146 - Composite retaining ring: A two part retaining ring is described that has a lower ring and an upper ring. The lower ring contacts a polishing surface during chemical mechanical polishing. The upper surface and the lower surface of the lower ring have thick and thin subportions to increase the flexibility of the lower... Agent: Fish & Richardson P.C.

20070197147 - Polishing system with spiral-grooved subpad: A polishing system is described. The polishing system includes a polishing layer, and a subpad supporting the polishing layer, where the subpad has a spiral groove formed therein.... Agent: Fish & Richardson P.C.

20070197148 - Knife sharpener with improved knife guides: Various forms of knife guides are provided for knife sharpeners to minimize damage to the knife blade. The knife guides include the provision of flexible fibers on the guide surface and further include rings, such as O-rings on an array of rollers when the rollers are used to form the... Agent: Connolly Bove Lodge & Hutz, LLP

20070197149 - Belt sander: A belt sander is disclosed that may include a sanding assembly having a first roller and a second roller, the sanding assembly being configured to receive a sanding belt around the first roller and the second roller to define a sanding surface therebetweeen. The belt sander may include a motor... Agent: Brake Hughes Bellermann LLP

20070197150 - Belt sander: A belt sander is disclosed that may include a sanding assembly having a first roller and a second roller, the sanding assembly being configured to receive a sanding belt around the first roller and the second roller to define a sanding surface therebetweeen. The belt sander may include a motor... Agent: Brake Hughes Bellermann LLP

20070197151 - Belt sander: A belt sander is disclosed that may include a sanding assembly having a first roller and a second roller, the sanding assembly being configured to receive a sanding belt around the first roller and the second roller to define a sanding surface therebetweeen. The belt sander may include a motor... Agent: Brake Hughes Bellermann LLP

20070197152 - Powered paint removal tool: A powered paint removal tool having a rotating abrasive disk for removing paint, with the disk resiliently mounted for deflection out of perpendicular to a driving shaft axis, and which operates in a range of about 780 to about 4200 surface feet per minute. The tool has a folding handle... Agent: Faegre & Benson LLP Patent Docketing

20070197153 - Pipe deburring tool: A pipe deburring tool (1) comprises a deburring means (2) arranged to deburr the inside surface of a pipe and a cleaning means (3) arranged to simultaneously prepare the outside surface of the pipe upon relative rotation of the tool and pipe. The deburring means (2) comprises a prism having... Agent: Hahn Loeser & Parks, LLP

20070190902 - Tool setter for a grinding machine: A device or tool setter has the purpose of setting the position of a support bar, adjustably connected to a grinding machine, in relation to a rotatable grindstone of the machine for obtaining a desired edge angle of a tool supported for grinding by the support bar. The device is... Agent: Breiner & Breiner, L. L. C.

20070190908 - Semiconductor device and method for manufacturing the semiconductor device: A method is used for manufacturing a semiconductor device including a circuit-fabricated side on which an encapsulation layer is formed. The method includes the following steps. A semiconductor wafer is placed on the suction surface of a suction stage, the suction surface having a diameter in the range of 99... Agent: Rabin & Berdo, PC

20070190909 - Three-dimensional network for chemical mechanical polishing: The polishing pad (104) is useful for polishing at least one of magnetic, optical and semiconductor substrates (112) in the presence of a polishing medium (120). The polishing pad (104) includes a three-dimensional network of interconnected unit cells (225). The interconnected unit cells (225) are reticulated for allowing fluid flow... Agent: Rohm And Haas Electronic Materials Cmp Holdings, Inc.

20070190897 - Apparatus and method for slicing an ingot: A method for slicing an ingot may improve nanotopography at a surface of a wafer. In the method, an ingot is sliced into a plurality of wafers via a slurry while slurry is supplied to a moving wire. A first wire to form a first slicing portion at the wafer... Agent: Christie, Parker & Hale, LLP

20070190898 - Storage system for glass offcut: The storage system is for use next to a glass processing line having a loading table, a glass cutting table and a breakout table. The storage system comprises a first tilt table and a second tilt table with an intermediary conveyor extending between them. A storage rack and a laterally-movable... Agent: Ogilvy Renault LLP

20070190899 - Eyeglass lens processing apparatus and method of processing eyeglass lens: An eyeglass lens processing apparatus for processing an eyeglass lens includes: a lens chuck that holds the lens; a roughing tool; a finishing tool; a finishing data input unit that inputs finishing data; a water supply unit that supplies water to a portion being processed of the lens; a first... Agent: Sughrue-265550

20070190900 - Contour follower: A contour follower includes a plurality of sensors spaced around a waterjet nozzle, each of the sensors being configured to measure a distance between a working surface and a first plane, perpendicular to a longitudinal axis of the nozzle. The sensors may include hall-effect sensors lying in the first plane... Agent: Seed Intellectual Property Law Group PLLC

20070190901 - Contour follower: A contour follower includes a plurality of sensors spaced around a waterjet nozzle, each of the sensors being configured to measure a distance between a working surface and a first plane, perpendicular to a longitudinal axis of the nozzle. The sensors may include hall-effect sensors lying in the first plane... Agent: Seed Intellectual Property Law Group PLLC

20070190903 - Apparatus and method for polishing semiconductor wafers using one or more polishing surfaces: An apparatus and method for polishing objects, such as semiconductor wafers, utilizes one or more polishing surfaces, multiple wafer carriers and at least one load-and-unload cup. The load-and-unload cup may be configured to move to and from the wafer carriers in a pivoting manner. The load-and-unload cup may be configured... Agent: Wilson & Ham

20070190904 - Wafer holder and wafer conveyor equipped with the same: The present invention is directed to a wafer holder and a related wafer conveyor system. The wafer holder holds a wafer and moves horizontally within a chamber. A contact area between the wafer and the wafer holder is reduced, and potential contaminants generated by ear between components of the wafer... Agent: Volentine & Whitt PLLC

20070190905 - Polishing pad and semiconductor device manufacturing method: The object of the invention is to provide a polishing pad capable of maintaining high-precision end-point optical detection over a long period from the start of use to the end of use even if polishing is performed with an alkaline or acid slurry, as well as a method of manufacturing... Agent: Knobbe Martens Olson & Bear LLP

20070190906 - Polishing medium for chemical-mechanical polishing, and polishing method: This invention provides a polishing medium for CMP, comprising an oxidizing agent, a metal-oxide-dissolving agent, a protective-film-forming agent, a water-soluble polymer, and water, and a polishing method making use of this polishing medium. Also, it is preferable that the water-soluble polymer has a weight-average molecular weight of 500 or more... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070190912 - Apparatus and method for slicing an ingot: A method for slicing an ingot may improve nanotopography at a surface of a wafer. In the method, an ingot is sliced into a plurality of wafers via a slurry while slurry is supplied to a moving wire. A first wire to form a first slicing portion at the wafer... Agent: Christie, Parker & Hale, LLP

20070190907 - Burnishing head: A burnishing head comprises at least two rails, each rail having an inner wall and an outer wall. The outer walls are at an angle relative to one another and relative to a central axis of the burnishing head. This angle permits the burnishing head to exhibit improved recovery time... Agent: Kenneth E. Leeds

20070190911 - Polishing pad and forming method: A polishing pad which ensures that a work can be easily removed from the polishing pad surface after polishing, the amount of a polishing liquid used for polishing can be reduced, and the production cost of the polishing pad can be lowered. A first polishing pad (1) for polishing a... Agent: Robert J. Depke Lewis T. Steadman

20070190910 - Slurry composition and method for polishing organic polymer-based ophthalmic substrates: The present invention provides a slurry composition and method for polishing organic polymer-based ophthalmic substrates. The slurry composition according to the invention includes an aqueous dispersion of abrasive particles and a pyrrolidone compound. The abrasive particles can be alumina, zirconia, silica, titania or combinations of the foregoing. Slurry compositions according... Agent: Rankin, Hill, Porter & Clark, LLP

20070190913 - Polishing apparatus and polishing method: A polishing apparatus comprises a first polishing table having a first polishing surface, a substrate carrier for holding a substrate and positioning the substrate so as to bring a surface of the substrate into contact with the first polishing surface, a pressing mechanism for pressing, against the first polishing surface,... Agent: Wenderoth, Lind & Ponack, L.L.P.

20070190914 - Belt sander: A belt sander is disclosed that may include a sanding assembly having a first roller and a second roller, the sanding assembly being configured to receive a sanding belt around the first roller and the second roller to define a sanding surface therebetweeen. The belt sander may include a motor... Agent: Brake Hughes Bellermann LLP

20070190915 - Cover for guiding a medium in an abrasive disk: The invention relates to a grinding-wheel cover (3) for grinding wheels with a support body (1) and a grinding layer (2) arranged at an edge or face for edge or face use in grinding, a grinding-wheel cover being provided for forming cavities on the grinding body, wherein the grinding-wheel cover... Agent: K.f. Ross P.C.

20070190916 - Three-dimensional network for chemical mechanical polishing: The polishing pad (104) is useful for polishing at least one of magnetic, optical and semiconductor substrates (112) in the presence of a polishing medium (120). The polishing pad (104) includes a three-dimensional network of interconnected unit cells (225). The interconnected unit cells (225) are reticulated for allowing fluid flow... Agent: Rohm And Haas Electronic Materials Cmp Holdings, Inc.

20070190917 - Contoured interface pad for an abrasive finishing device: A contoured interface pad for use between a base of an abrasive finishing device and an abrasive sheet is disclosed. The contoured interface pad has a body with a first and second opposed major side. The first side is positionable against the base of the abrasive finishing device while the... Agent: Christie, Parker & Hale, LLP

20070184755 - Grinding mount holder assembly, apparatus and method for manufacturing a sample: Provided are a grinding mount holder assembly and an apparatus and method for manufacturing a sample using the grinding mount holder assembly. In an embodiment, the grinding mount holder assembly includes a mount in which a sample is fitted, a holder in which the mount is inserted, and a base... Agent: Marger Johnson & Mccollom, P.C.

20070184756 - Rotary mower blade sharpener having movable griding wheels: A device and method for sharpening a mower blade are provided, in which a mounting device for mounting a rotary blade having two opposite cutting edges to be sharpened, wherein the mounting device is capable of positioning the blade in a first fixed state and a second, axially pivoting state.... Agent: Dorsey & Whitney LLP Intellectual Property Department

20070184759 - Platen assembly, apparatus having the platen assembly and method of polishing a wafer using the platen assembly: In a platen assembly for a polishing apparatus, a platen supports a polishing belt that makes contact with an object during a polishing process, so that the platen provides a pressure on the polishing belt during the polishing process. A plurality of first bladders extends in a first direction on... Agent: Mills & Onello LLP

20070184760 - Lawnmower blade sharpener: In one embodiment, a method of sharpening reel blades on a lawnmower reel includes positioning a grinding wheel in contact with the reel, rotating the grinding wheel about an axis of rotation, linearly translating the grinding wheel along a longitudinal path. and rotating the reel about its longitudinal axis. The... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20070184754 - Sanding system: A sanding system has a sanding device with a carriage, and a control unit configured so that it carries out unmanned steering of the sanding device by controlling the carriages... Agent: Striker, Striker & Stenby

20070184757 - Polishing sheet and polishing work method: The present invention provides a polishing sheet that can secure a flatness of a material to be polished and can improve a polishing efficiency. A polishing pad 1 has a polyurethane sheet 2 made of polyurethane resin. The polyurethane sheet 2 has large cells 3 with a generally triangular sectional... Agent: Roberts, Mlotkowski & Hobbes

20070184758 - Contour follower: A contour follower includes a plurality of sensors spaced around a waterjet nozzle, each of the sensors being configured to measure a distance between a working surface and a first plane, perpendicular to a longitudinal axis of the nozzle. The sensors may include hall-effect sensors lying in the first plane... Agent: Seed Intellectual Property Law Group PLLC

20070184761 - Method and apparatus for measuring abrasion amount and pad friction force of polishing pad using thickness change of slurry film: A method and apparatus for measuring an abrasion amount and a friction force of a polishing pad using a thickness change of a slurry film in a chemical mechanical polishing operation are provided. In a preferred method, for example, a first displacement of a semiconductor wafer with respect to a... Agent: Marger Johnson & Mccollom, P.C.

20070184762 - Floor sanding machine: A floor sanding machine is proposed, which consists of a case body (11) and a plurality of sanding tools (30) arranged eccentrically in the case body (11). The axes of the tool shafts (31) rotate about the axis of a central shaft (12), and the sanding tools (30) rotate about... Agent: Tarolli, Sundheim, Covell & Tummino L.L.P.

20070184763 - Sand pad lock for sander: A lock formed from a body and a projection that is inserted into the aperture in the spindle to rotatably connect a sanding pad to the housing. The lock may include an arm rotatably mounted to the body that is movable between a first position wherein the arm can be... Agent: Brinks Hofer Gilson & Lione

20070184764 - Method of processing antifriction bearing unit for wheel: A method of processing an antifriction bearing unit for a wheel, the anti friction bearing unit including an outer race, an inner race, a plurality of rolling elements and a flange portion for directly or indirectly mounting a brake disk provided to one of the outer and inner races, the... Agent: Mcginn Intellectual Property Law Group, PLLC

20070184765 - Tool for working on a surface: An embodiment of a tool for working on a surface includes a rigid tool support, a pad attached to a lower surface of the rigid tool support, a working material replaceably attached to a lower surface of the pad, and a vacuum attachment member connected to the rigid tool support,... Agent: Brooks & Cameron, PLLC

20070178809 - Polishing of optical and non-optical tools for improved mold flow: This invention is related to contact lenses. In particular, the present invention is related to methods for improving mold flow by polishing optical and non-optical tools used to create molds for contact lenses.... Agent: Ciba Vision Corporation Patent Department

20070178810 - Particle reduction on surfaces of chemical vapor deposition processing apparatus: A method of reducing the amount of particulates generated from the surface of a processing component used during plasma enhanced chemical vapor deposition of thin films. The body of the processing component comprises an aluminum alloy, and an exterior surface of said processing component is texturized to increase the amount... Agent: Shirley L. Church, Esq.

20070178811 - Dry ice blasting with chemical additives: Dry ice blasting using dry ice pellets having additives, such as antimicrobial compounds, disinfectants, surfactants, and odorants. Additives are incorporated into solid carbon dioxide by any variety of processes. The additives are selected on the basis of cleaning or olfactory effects.... Agent: Air Liquide Intellectual Property Dept.

20070178807 - Wire saw ingot slicing system and method with ingot preheating, web preheating, slurry temperature control and/or slurry flow rate control: A system and method for slicing an ingot into wafers using the wire saw process. A slurry collection system collects and supplies slurry to a slurry handling system for controlling temperatures and/or flow rates of the slurry thereby providing slurry output at a controlled temperature and/or a controlled flow rate... Agent: Senniger Powers

20070178808 - Method and device for grinding assembled camshafts with a high concentricity accuracy: The invention relates to a method for grinding the bearing points and assembled cams of camshafts and for levelling them with the aid of a grinding machine and to a device for carrying out said method, in particular making it possible to carry out a levelling process by means of... Agent: Jordan And Hamburg LLP

20070178812 - Polishing pad and method for manufacture of semiconductor device using the same: The present invention provides a polishing pad which imparts excellent planarity and uniformity thereof to a material to be polished, such as a semiconductor wafer, without forming scratches. The present invention relates to a semiconductor wafer polishing pad comprising a polishing layer and a cushion layer, wherein the polishing layer... Agent: Hamre, Schumann, Mueller & Larson, P.C.

20070178813 - Ophthalmic roughing wheel: Ophthalmic rough-cut and polishing wheels having a plurality of swarf clearance grooves formed across the shaping face are described. The grooves are spaced around the shaping face of the wheels, wherein the slots are configured so as to be substantially angled either towards or away from one another.... Agent: Warn, Hoffmann, Miller & Lalone, .p.c

20070178814 - Method of cleaning a probe: A probe having a tip is cleaned with a cleaning sheet having a base sheet, a foamed layer of a porous material including non-fibrous abrading particles and air bubbles on the base sheet and a polishing layer formed on the foamed layer by causing a surface of the polishing layer... Agent: Beyer Weaver LLP

20070178815 - Dust shield and adapter device: A dust shield and adapter, in combination or as separate components, for universal attachment to the bearing housings having different diameter sizes. As separate components, the shield has a skirt for covering a grinding disk and upward extending collar to which a separate component adapter attaches. The adapter has adjustable... Agent: Frank G Morkunas

20070178816 - Grinder for windshield wipers: A grinder includes two plates and two pieces of sandpaper. Each of the plates includes at least one bent portion, a sandpaper side and a finger side opposite to the sandpaper side. The pieces of sandpaper are attached to the sandpaper sides of the plates before the plates are connected... Agent: Kamrath & Associates P.A.

20070178817 - Discontinuous abrasive particle releasing surfaces: Discontinuous abrasive particle releasing surfaces are disclosed that may be employed in low speed wet grinding, sanding, and polishing operations. The discontinuous abrasive surfaces of the present invention may consist of abrasive containing protrusions attached to rigid or flexible surfaces or alternatively may be comprised of closed cell foam compositions... Agent: Frank A. Palase