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| Number | Title | Issue Date |
| 8118370 | Milling head and method for machining pile heads The milling head which serves for the machining of the head of a pile consisting of a pile core, a pile shaft and a metal reinforcement lying therebetween comprises a coupling device that can be connected to a drive shaft and a plurality of picks that are used to re... | 02/21/2012 |
| 7494191 | Manhole ring saw cutting device A ring saw device used in the installation of manholes to afford proper installation height and angular inclination compliant to street surface. The ring saw cutting device has a support ring base that acts as an elevated and inclination guide with a dual axis cutti... | 02/24/2009 |
| 7287818 | Vertical milling apparatus for a paved surface A vertical milling apparatus for a paved surface has a rotary degradation element which has a top end connected to a carrier. The carrier is slideably attached to an underside of a motorized vehicle, and adapted to traverse the paved surface. The rotary degradation ... | 10/30/2007 |
| 7261623 | Wood floor sanding machine A power sanding machine (10) has three circumferentially spaced cogged belts (40) to drive three discs (52) rotatably mounted to an inner bowl (30) which is rotatably mounted to a housing (12), which in turn is connected to an oper... | 08/28/2007 |
| 7241210 | Floor treating machine comprising individually driven discs A floor treating machine includes a frame provided with a housing which is supported with respect to the frame in such a manner that it can rotate about a substantially vertical housing axis, at least three heads positioned at intervals around the axis and rotatably... | 07/10/2007 |
| 7222556 | Shingle removing machine The shingle removing machine includes a frame supporting a power source, which, in turn, drives a lateral axle with a wheel at each end thereof, with each wheel having an eccentric pin driving a blade drive arm. Separate wheels support the frame. Each blade drive ar... | 05/29/2007 |
| 7223049 | Apparatus, system and method for directional degradation of a paved surface An apparatus, system and method for directionally degrading a paved surface. A substantially cylindrical rotary tool may include cutting inserts embedded within its cylindrical surface. The tool may be rotated about a rotational axis extending from a top end of the ... | 05/29/2007 |
| 7210744 | Manually replaceable protective wear sleeve The wear sleeve in the present invention comprises a rearward split ring portion and an intermediate cylindrical ring portion adjacent a forward shoulder portion. The outer diameter of the wear sleeve intermediate portion and rearward split ring portion is uniform. ... | 05/01/2007 |
| 7179018 | Apparatus and method for working asphalt pavement A method and apparatus for working asphalt pavement, comprising one or both of a mechanical, hydraulic, electric, or pneumatic means for providing high-speed rotation; a rotary tool comprising a first end comprising a working surface and a second end adapted for con... | 02/20/2007 |
| 7147548 | Grinding and cutting head A grinding and cutting head adapted to be mounted with a rotating disk of a grinding and cutting machine. The head includes a plate having a first surface which mounts at least one carrier. The carrier includes a vertical slot along one side which extends upwardly f... | 12/12/2006 |
| 7128165 | Excavation system and method A system and method of cutting a core out of a finished surface for keyhole excavation provides a truck with a turret to which a support arm supporting the cutter assembly is mounted, and a stabilizing member remote from the turret, which allows the turret to be rot... | 10/31/2006 |
| 7104739 | Milling disk for a floor machining appliance A milling disk for a floor machining appliance has a plurality of mounts for holding interchangeable plate-like milling tips, the milling disk being driven for rotation by the floor machining appliance and being held substantially parallel to the substructure to be ... | 09/12/2006 |
| 7073975 | Slot cutting apparatus and method An apparatus for cutting slots in pavement has a slot cutting assembly with several pairs of rotating blades mounted to a vehicle and vertically adjustable relative to the vehicle. A lift system moves the vehicle between a first position wherein the lift is not enga... | 07/11/2006 |
| 6907874 | Concrete hole cutting machine A machine for cutting holes in concrete slabs comprises a connector adapted to be secured to an adapter of a front-end loader. Secured to the connector is a first frame structure that includes an elongated tube and a support foot for engaging the surface of a concre... | 06/21/2005 |
| 6709064 | Method and device for detaching or cutting out an embedded manhole frame A method for detaching a manhole frame (7) that is embedded in a road surface, wherein the manhole frame (7) is cut horizontally starting from the inside, without significant exposure of the outside area surrounding the manhole frame (7), by usi... | 03/23/2004 |
| 6626500 | Rotary drum cutting head A rotary drum cutting head (40) has pair of rotary drums (16, 18) which present a plurality of cutting implements (42) adapted for milling rock or other excavatable terrain, and a hydraulic motor (46) centrally disposed between the pair of rotary drums (1... | 09/30/2003 |
| 6619755 | Machine for automatically removing temporary raised pavement markers (TRPMs) from roadway surfaces Apparatus for removing temporary raised pavement markers (TRPM) from roadway surfaces comprises a platform, and a plurality of cutter blades rotatably disposed beneath the platform for encountering and severing the upstanding vertical reflective portions ... | 09/16/2003 |
| 6536987 | Quick manhole/handhole construction method and related devices A quick manhole/handhole construction method and related devices is provided that includes a cutting unit and a manhole/handhole cover lifter. The cutting unit includes a radial feeding device, a cutting plate, a base, and a vessel, for easily carrying ou... | 03/25/2003 |
| 6523906 | Floor covering removal apparatus A mobile apparatus for removing floor coverings. The apparatus has a main frame supported by wheels and includes a scraper blade mounted on the front of the frame and a rotary cutter assembly mounted underneath the frame with controls whereby the scraping... | 02/25/2003 |
| 6364419 | System for working the surface of a road An assembly is provided for excavating cavities in a road surface for a variety of purposes, among them, the formation of rumble strips, the installation of light reflective road markers, the milling of potholes, boring of holes for various purposes and t... | 04/02/2002 |
| 6161635 | Drilling system drive steel A drive steel member for driving engagement with a rotary drilling machine, including a chuck adapter having main body and chuck seating elements and being constructed and arranged in fixed, sealing relation on on one end of the drive steel member.... | 12/19/2000 |
| 6076895 | Road cutting machine with specific cutting bit arrangement A road cutting machine comprises a machine body (2) mounted to a travelling body (1) to be swivel, a boom (4) mounted to the machine body to be vertically swingable, an arm (6) mounted to the boom to be swingable in a vertical direction and a road cutting... | 06/20/2000 |
| 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 |
| 5893611 | Roofing removal apparatus A roofing removal apparatus for stripping shingles, roofing paper, tar paper and nails from roof decking prior to replacing and installing new shingles. The inventive device includes a frame having a pair of guide members with tapered ends, a motor having... | 04/13/1999 |
| 5890772 | Grinding machine for removing markings from paved surfaces and grinder for the same A grinding machine to remove markings such as painted lines from a paved surface includes a wheeled carriage to be moved over the paved surface. A grinder is positioned beneath the carriage to contact and grind the paved surface. A suspension acts between... | 04/06/1999 |
| 5882086 | Floating head cutter mechanism for removing traffic markings A vehicle having three or more wheels, supporting substantially all of the vehicle weight on its wheels, for removing a traffic marking from a road surface, has a vertically floating head cutter mechanism comprising a mounting shroud having an open bottom... | 03/16/1999 |
| 5823276 | Diamond-tipped core barrel and method of using same A relatively large diameter core barrel has a plurality of diamond cutting elements disposed around the circumference of its working end for drilling piles in very hard ground, such as metamorphic rocks and igneous rocks. Each cutting element is designed ... | 10/20/1998 |
| 5803661 | Method and apparatus for road hole repair including preparation thereof Apparatus for pretreating a pothole preparatory to filling thereof including determining the size and/or path of revolution of a treatment member responsive to determining the location and size of the pothole to be repaired; lowering the treatment member ... | 09/08/1998 |
| 5765926 | Apparatus for routering a surface and a cutting head and tool piece therefor Apparatus for routering a surface comprises a pair of independently driven drive wheels and a balance wheel which is freely pivotal to follow a path steered by the drive wheels. A cutting head is pivotally mounted between the drive wheels and its height r... | 06/16/1998 |
| 5683143 | Abrasive surface treatment apparatus having removable blocks An improved abrasive floor treatment apparatus that can be used to effectively treat a variety of floor surfaces, including floor surfaces that are uneven. The apparatus includes a plurality of special abrasive block assemblies that are mounted on the und... | 11/04/1997 |
| 5626399 | Apparatus for cutting and excavating solids An apparatus for cutting and breaking rock includes a cutting disc (13) having an attached wedge (11). Cutting disc (13) can be rotated by shaft (16) to cut a groove into rock. After a pre-determined distance, wedge (11) is forced into the cut groove to c... | 05/06/1997 |
| 5605381 | Pavement marking eradicator A pavement marking eradicator (10) for removing pavement marking from pavement. The eradicator has a grinding apparatus (13) having a safety skirt (31) to which is mounted a collector (39) of a vacuum system (14). The vacuum system also has a cyclone (36)... | 02/25/1997 |
| 5584597 | Method and apparatus for road hole repair including preparation thereof Apparatus for pretreating a pothole preparatory to filling thereof including determining the size and/or path of revolution of a treatment member responsive to determining the location and size of the pothole to be repaired; lowering the treatment member ... | 12/17/1996 |
| 5570934 | Traction boring device using multiple trepans for producing large cuts in concrete works and the like and method of producing cuts A multiple trepan boring device for producing substantially large cuts in large works, such as concrete dams, comprises a drilling shaft adapted to be translationally displaced along its longitudinal axis and carrying a series of spaced apart cylindrical ... | 11/05/1996 |
| 5470131 | Methods and apparatus for cutting circular slots in pavement extending about manhole castings A self-propelled core-cutting apparatus is used to cut circular slots in pavement extending about manhole castings and the like to permit castings and surrounding cores of pavement to be removed quickly and easily for such purposes as elevating the level ... | 11/28/1995 |
| 5416943 | High speed conversion means for floor treating machines A high-speed conversion for floor treating machines which comprises a wheeled frame, an impeller member attached to the floor treating drive of a floor treating machine for rotation therewith, a plurality of speed accelerators fixedly attached to the impe... | 05/23/1995 |
| 5409299 | Apparatus for removing floor covering A rotary cutting attachment for removing linoleum, tile, mastic, grout, adhesive and the like from floors. The cutting attachment includes a drive plate, an elastomeric ring, a cutter head, a block plate, six cutter blocks and three cutter inserts per cut... | 04/25/1995 |
| 5275470 | Scraping device for powered stone floor dressing unit A scraping device for use on powered stone floor dressing units which includes a solid support body and a scraping blade fastened to the support body. The support body is T-shaped, made from hardened steel and is mountable to a floor dressing unit by a un... | 01/04/1994 |
| 5184429 | Surface grooving machine A vehicle has affixed a gear rack mast for mounting a modified core driller adapted to accommodate a flexible coupling for driving a texturing tool for grooving or scoring a plurality of monolithic blocks to an even depth regardless of their levelness wit... | 02/09/1993 |
| 5180209 | Apparatus for cutting recessed grooves into concrete and rock material Recessed grooves are cut into bore hole walls of concrete or rock materials for the purpose of interconnecting two components of such materials at an interface between these components. These recessed grooves are cut by material removing tools which can b... | 01/19/1993 |
