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| Number | Title | Issue Date |
| 7131500 | Sports surface reconditioner A device for reconditioning a damaged sports surface. The device includes at least one rotatably driven shaft with two ends, one of which is connected to a frame, the other end being disposed towards the surface. The driven shaft is disposed orthogonal relative to t... | 11/07/2006 |
| 7003997 | Method and apparatus to reduce deformation in sheets cut by cutting tool The present invention is a method for reducing the deformation along a cut contour edge (26) of a sheet (2) caused by the cutting process whereby sheet material (4) protrudes above the top surface of the sheet being cut. One group of embodiments... | 02/28/2006 |
| 6997790 | Method of fabricating pliant workpieces, tools for performing the method and methods for making those tools An improved method of manufacturing automotive accessory drive belts or other workpieces of pliant material which have a grooved operative face, a tool having an abrasive ramp configuration for performing said improved method and a method of manufacturing said tool ... | 02/14/2006 |
| 6994081 | Apparatus for roughing the surfaces of casted concrete block A casted concrete block surface-roughing machine having an in-line conveyor displaceable over a stationary horizontal support surface for slidingly supporting a lower surface of concrete blocks displaced thereon by the conveyor. At least two pairs of spaced-apart ve... | 02/07/2006 |
| 6807960 | Tool for dressing pulpstones A burr is provided for dressing a grinding tool, such as the grinding surface of a pulpstone grinding tool used for mechanical preparation of wood pulp. The burr includes a cylindrical body portion, a plurality of teeth disposed on and protruding outward from the ou... | 10/26/2004 |
| 6308700 | Process and manufacturing of a rotary diamond dresser for trueing and dressing of industrial grinding wheels The invention applies to a diamond dresser consisting of a rotary symmetric body on whose circumference and/or face is applied randomly distributed diamond particles. It is the task of the invention to use simple means to reduce the abrasion on the circum... | 10/30/2001 |
| 6021771 | Surfacing machine with "strip-sert" cutter assemblies A cutter assembly for installation on the rotary discs of a concrete finishing/stripper machine includes a base member for mounting on the rotary disc of a machine, a cutter member carried on the base member having a plurality of interchangeable cutting e... | 02/08/2000 |
| 5980371 | Abrading tool An improved abrading tool adapted for being driven in rotation by a power tool is disclosed. The abrading tool includes a single piece housing having concentric inner and outer cylindrical walls. A plurality of abrading disc assemblies are in equal circum... | 11/09/1999 |
| 5954568 | Method, tool and device for the profiling of grinding worms for continuous gear grinding The profiling tool (10) has a segment (12) of a worm thread. Its active zone (13) is coated with grains of hard material (16) and is crowned in cylinder sections coaxial to the tool axis (26). During profiling, the grinding spindle (2) and the tool (10) r... | 09/21/1999 |
| 5788561 | Apparatus for grinding floor surfaces and/or cutting grooves in floors A handheld and readily maneuverable apparatus for grinding floor surfaces and/or cutting grooves in a floor formed of a hard material such as concrete, stone or the like is disclosed. The apparatus includes an elongated tube having a motor mounted at its ... | 08/04/1998 |
| 5685373 | Assembly and process for drilling and completing multiple wells An apparatus and process are provided for drilling and completing multiple subterranean wells from a template which is secured within a cased well bore extending to the surface. An orienting cam having a bore therethrough is positioned above the template ... | 11/11/1997 |
| 5335976 | Treatment disk of apparatus for roughening or treating surfaces A treatment disk for devices for roughening or treating surfaces of stone floors, wherein hammer-like treatment points are mounted on the treatment disk opposite each of respectively semicircular slideways of the treatment disk. This shape makes it possib... | 08/09/1994 |
| 5190353 | Rock cutting tool having eccentric drive A rock-cutting tool includes a sleeve equipped with cutting elements and supported on a shaft, the sleeve being separately rotatable and eccentrically arranged in relation to the shaft whereby, in use, rotation of the shaft imparts a radially oscillating ... | 03/02/1993 |
| 4909234 | Cutter A cutter comprises a ring-shaped base plate. On the peripheral edge of the base plate there are formed a plurality of projections interposing slits therebetween. The projections are formed thinner than the base plate and provided with holes, through which... | 03/20/1990 |
| 4834462 | Cutter for impact-type cutting machine A cutter for an impact-type cutting machine having a cutter shaft which is eccentrically provided on a drive shaft and is adapted to eccentrically rotate around the drive shaft axis. The cutter has an opening therein into which the cutter shaft is inserte... | 05/30/1989 |
| 4815543 | Activated rock cutting assembly A rock cutting assembly consists of a rock cutting roller, a shaft on which it is mounted, and a means for varying the mass of the assembly about the drive axis, to vary the balance of the assembly about that axis. Preferably two rollers are mounted on a ... | 03/28/1989 |
| 4736987 | Rock cutting assembly A rock cutting assembly which includes a rock cutting roller with the roller being composed of a central hub portion and an annular cutting element which is rotatably mounted on the hub and carries rock cutting formations, means for driving the hub portio... | 04/12/1988 |
| 4725097 | Inclined cutter for surface cleaning head In apparatus for removing material from the surface of a solid substrate, a rotary cutter cage has a plurality of cutters where each cutter has a plurality of projecting cutter teeth. The improvement comprises an adaptation in mounting of the cutters on t... | 02/16/1988 |
| 4717205 | Cutter A cutter is disclosed. The cutter comprises a frame, driving means mounted on said frame, having an output shaft, a casing mounted on said frame and rotatably receiving said output shaft at one end thereof, a rotatable shaft rotatably mounted on said casi... | 01/05/1988 |
| 4714294 | Drum and cutter assembly for a planing machine A cutter subassembly for a concrete planing machine which is comprised of an elongated acrylic plastic tube on which is manually assembled a set of circular multitoothed cutting elements and annular spacers arranged in a predetermined order to provide a d... | 12/22/1987 |
| 4634188 | Rotary tool The invention is directed to a rotary tool for attachment to a machine for working and smoothing an even surface of a base made of cement, concrete or similar hard material. The machine includes a multi-wheeled vehicle and at least one tool drive shaft ar... | 01/06/1987 |
| 4597225 | Interchangeable support disc for diamond-bearing plates of circular milling cutters An interchangeable support disc for diamond-bearing plates used in circular milling cutters for the planing of stones, marbles, granite and the like comprises a plurality of such plates mounted on discs which are in turn connected by screws to a circular ... | 07/01/1986 |
| 4592108 | Tool and method for scarifying a surface A tool (10) and method for scarifying a surface is disclosed. Tool (10) comprises a backing plate (14) having a plurality of equally spaced brackets (16) extending downwardly therefrom. Each bracket (16) supports a pair of axles (18) on which are mounted ... | 06/03/1986 |
| 4557246 | Brick cleaning machine An apparatus for removing mortar from used bricks which includes breaker means for breaking and dislodging mortar, penetration means operable to penetrate a layer of mortar, and scraper means for scraping and providing a finished surface on a brick. The b... | 12/10/1985 |
| 4523361 | Portable surface processing apparatus A portable surface processing apparatus which has two rotors (R1, R2) fitted with blades driven in opposite directions by a motor (M). The reaction forces arising in the processing therefore mutually cancel each other.... | 06/18/1985 |
| 4437526 | Milling tool for forming recesses in masonry, concrete and similar material structures A milling tool for forming recesses, such as an undercut in a borehole, in masonry, concrete and similar material structures includes a tool shaft with a bearing pin extending outwardly from one end of the shaft and with the axis of the pin offset eccentr... | 03/20/1984 |
| 4385412 | Attachment for removing glued-on carpet padding An attachment adapted for mounting on a conventional rotary floor surfacing machine such as a buffer, sander, polisher or the like. The attachment having a plurality of individual wire blades that provide a brush like cutting edge for engaging and quickly... | 05/31/1983 |
| 4372242 | Assembly for treating vessel hulls An assembly for cleaning ships' hulls of such marine growth as seaweed, shell etc. is disclosed. The assembly has a frame with rotating brushes, the frame being reciprocally pivotal over the hull in an arcuate direction by being connected to one end of an... | 02/08/1983 |
| 4275528 | Electroplated diamond milling cutter A milling cutter rotatable about an axis and including a cylindrical steel core having helical tapered threads, such as V-shaped threads, diamond grit of a suitable mesh being appropriately secured, as by nickel plating, onto the crests, roots and flanks ... | 06/30/1981 |
| 4200947 | Rotary stripper device A rotary stripper, which can be chucked to a drive shaft, comprises a pair of discs spaced by a centrally positioned intermediate hub which has radial slots. Immediately outward of the hub and arranged in a ring concentric thereto are a series of equidist... | 05/06/1980 |
| 4188696 | Abrading tool In an abrading tool having a cup-shaped outer housing with a shank for attachment to a power-driven chuck and rotatable abrading discs on radial axles inside this housing, a plurality of knocker bars are attached to the outside of this housing. As the rot... | 02/19/1980 |
| 4085540 | Mechanical toy athlete A mechanical toy athlete built on a base has a hollow body portion comprising the torso of the athlete. A slidable plunger extends from within and out the top of the hollow body portion. The head of the athlete mounts on the top end of the plunger. Downwa... | 04/25/1978 |
| 3942208 | Rotary cleaning device A rotary cleaning device comprising a cup-shaped rotatable base member, a cylindrical resilient mounting received in the cup-shaped member, a plurality of elongated cleaning elements essentially in the form of wood screws mounted in the resilient mounting... | 03/09/1976 |
