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| Number | Title | Issue Date |
| 7416478 | Planetary drive heads for grinding/polishing pads A planetary drive head for treating floors having a hub that rotates in one direction and attached media gears that rotate in the opposite direction. ... | 08/26/2008 |
| 7381117 | Compound hook and loop drum system for a floor sander A powered floor sanding system with a motorized drum-type floor sander with a sanding drum configured as a drum core with a compliant sole covered with a first component layer of a hook and loop fastener system, to which is fastened a removable drum surface of back ... | 06/03/2008 |
| 7360312 | Bush cutter A bush cutter has a driving bevel gear housed in a first box constituting a part of a gearbox, and a driven bevel gear housed in a second box and engaging the driving bevel gear. The driving bevel gear is rotatably retained in a first bearing. The first bearing is s... | 04/22/2008 |
| 7357700 | Riding floor polishing and grinding machine for treating concrete, terrazzo, stone and similar surfaces The invention is a riding floor polishing and grinding machine that uses one or more gangs of polishing heads (242) to treat concrete and similar surface flooring (208). A compact vehicle (210) equipped with a front loader arm (235) is fi... | 04/15/2008 |
| 7278910 | Wheel scraper for a floor sander A wheel scraper for a floor sander attaches to the swivel support wheel of a floor sander and scraper debris from the support wheel in order to prevent debris accumulation on the support wheel. The device includes a frame that attaches to the floor sander and that p... | 10/09/2007 |
| 7258115 | Skid plate for concrete saw A skid plate for a concrete saw is integrally cast having two end mounting portions and a middle portion with a slot in the middle portion. A horizontal slot in a leading end mounting portion cooperates and a vertical slot in the trailing end portion releasably enga... | 08/21/2007 |
| 7247085 | Combination edger and grinder for floors A combined floor edger and grinder having a grinding disk which can be adjusted from engaging the floor while flat to engaging the floor along a front, back or side edge of the disk, depending on the height adjustment of the wheels on either side of the frame. The w... | 07/24/2007 |
| 7186170 | Device and method for severing welds A milling cutter or grinding tool for severing welds on body sheets is provided. The tool includes an essentially circular-cylindrical cutting wheel having cutting edges at least on the circumference and a pair of distance plates with a smaller radius than the outsi... | 03/06/2007 |
| 7163010 | Skid plate for concrete saw A skid plate for a concrete saw is integrally cast having two end mounting portions and a middle portion with a slot in the middle portion. A horizontal slot in a leading end mounting portion cooperates and a vertical slot in the trailing end portion releasably enga... | 01/16/2007 |
| 7144311 | Foot unit for abrasive cutting-off machine The invention described here entails a work device (such as an abrasive cutting-off machine) that can be comfortably guided in a work position and is stable in a turned-off position without components relative to safety being exposed to increased wear. In particular... | 12/05/2006 |
| 7143759 | Slotter provided with simultaneously two-way rotary saw blades A slotter provided with simultaneously two-way rotary saw blades comprises: an input shaft connected to a gear box by a power source, wherein a driving gear is disposed at the end of the input shaft of the gear box, a first driven gear engages with said driving gear... | 12/05/2006 |
| 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 |
| 7128640 | Drum for drum sander for surface mounting of sandpaper blanks A powered floor sanding system with a rotating sanding drum having a drum core, to which is adhered a compliant sole and thereto a hook component material, using suitable adhesives; in combination with a sanding sheet having a loop fabric laminated to its backside w... | 10/31/2006 |
| 7124793 | Portable planer for a single use stand An apparatus for a portable planer 12 having rails 14 with means for mounting to a single use stand 16, 18. The planer 12 has a pair of rails 14 with bolts 48 depending from the base thereof having threads with nuts 50 | 10/24/2006 |
| 7044120 | Baseplate for tool A baseplate for a tool having a support member with a passage way therein which has an inlet for receiving fluid and at least one outlet for directing fluid underneath the support member and rotating means attached to the bottom of the support member. The invention ... | 05/16/2006 |
| 7033258 | Floor resurfacing disks for rotary floor resurfacing machines A resurfacing disk which mounts to a rotatable disk mount of a conventional rotary floor resurfacing machine. The resurfacing disk includes a rigid upper disk with four counterbored holes through an upper surface corresponding to four downwardly open holes of each d... | 04/25/2006 |
| 7029370 | Grinding machines for depression patterns along roads In certain preferred embodiments, the present invention provides a grinding machine for creating depression patterns in a surface such as asphalt or concrete. The depression pattern may be a rumble strip for alerting drivers who drift off a driving lane, or may be f... | 04/18/2006 |
| 7022003 | Powder driven surface finishing apparatus A surface finishing device includes a surface finishing drum having opposing ends and a chamber therebetween, an elongate fixture having a handled proximal extremity and an opposing distal extremity, and a support element, which is carried by the distal extremity an... | 04/04/2006 |
| 7000605 | Engraver apparatus and method A concrete engraver apparatus including a carrier for use with a hand-held engraver. The hand-held engraver is detachably mounted to the carrier. The carrier has wheels and a handle attached to an enclosure. The enclosure includes a vacuum mount for attaching a vacu... | 02/21/2006 |
| 6986397 | Power riding trailer for an implement A riding trailer apparatus useful for controlling a floor treatment implement is provided including a frame, an operator support platform, and a hook-up mechanism structured to enable the apparatus to be operably coupled to one of various, conventional floor treatme... | 01/17/2006 |
| 6953394 | Protective device for a hand machine tool A guard device for a hand power tool, in the form of a sanding/grinding hand power tool, has a wheel guard enclosing at least part of a rotating tool in a radial direction; a guide for guiding the wheel guard along a work piece, and comprising a fastening device for... | 10/11/2005 |
| 6840842 | Burnishing pad, burnishing machine equipped with burnishing pad and burnishing method An objective of the present invention is to provide a burnishing pad, capable of removing dirt by burnishing a place (i.e., a dirty point) onto which dirt attaches to impart sufficient luster, and being biodegraded; a burnishing machine equipped with the burnishing ... | 01/11/2005 |
| 6669542 | Angle grinder An angle grinder with a housing 2 can be produced more economically by providing that it has a mounting shell 3, a cap shell 4, and an insert part 1 between these two shells. The insert part 1 is equipped with a first fixation device 10 and a second fixat... | 12/30/2003 |
| 6663467 | Process and composition for abrading pre-finished surfaces An abrading composition and a process for abrading factory pre-finished surface coverings, wherein the abrading composition comprises an effective amount of wear-resistant particles, a rheology modifier, and a solvent. This invention further relates to a ... | 12/16/2003 |
| 6645048 | Equipment for grinding/polishing a curved or flat wall element An apparatus for grinding and/or polishing a surface of a wall element includes a first elongate guide device oriented substantially parallel to the surface of the wall element. A second elongate guide device is movably coupled to the first elongate guide... | 11/11/2003 |
| 6575819 | Floor accessory driver A floor accessory driver for floor sanding procedures includes a driven unit having a sanding drum carried on a wheeled chassis that is detachably connected to a driver unit which includes a seat for an operator and further includes a DC driving unit for ... | 06/10/2003 |
| 6540598 | Above floor vacuum shroud for a floor grinding machine A vacuum shroud for a floor grinding machine has a rigid cover with a cylindrical skirt and a vacuum port. The skirt is concentrically disposed above the grinding wheel. A flexible cylindrical guard has a plurality of vertical ribs protruding inwardly fro... | 04/01/2003 |
| 6484711 | Automatic depth of cut control for concrete saw An automatic depth of cut control for use with concrete saws. The control allows an operator to set a maximum depth of cut for which the concrete saw can be used at. Further, the control allows the user to move the concrete saw from one location to anothe... | 11/26/2002 |
| 6336852 | Roll with surface coating A floor sander is disclosed that includes a drum having an outer surface formed from a number of units shaped like the frustrum of a sector, each having a first end receivable in a groove on the outer surface of an inner drum member so that, if the surfac... | 01/08/2002 |
| 6213694 | Device for repairing metal-stamping dies A metal mold repair tool is provided for leveling the work surface of stamping dies used in metal forming operations. The repair tool includes a pair of guides disposed on opposite lateral sides of a rotary finisher to precisely position the finisher with... | 04/10/2001 |
| 6112736 | Portable saw with improved disconnectable platform for cutting concrete for controlling cracks An apparatus for cutting grooves in a green concrete slab having at least one terminating side edge transverse to a broad top surface in a low cost manner is described and includes the following elements: a hand-held portable rotary saw, supported on a ro... | 09/05/2000 |
| 6099080 | Dry cutting and grooving apparatus for pavement In a dry cutting and grooving apparatus for pavement in which blades for cutting or grooving the pavement are covered by a housing which leaves the lower ends of the blades exposed, and in which chips and cutting powder generated at the time of cutting an... | 08/08/2000 |
| 6093090 | Reversible clamping hub A clamping hub for coupling a tool wheel to a high speed rotary power tool which can be made to operate in both the clockwise and the counter-clockwise directions which will not become accidentally disengaged during operation in either direction is descri... | 07/25/2000 |
| 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 |
| 5941227 | Portable saw with disconnectable platform for cutting concrete for controlling cracks An apparatus for cutting grooves in a green concrete slab having at least one terminating side edge transverse to a broad top surface in a low cost manner is described and includes the following elements: a hand-held portable rotary saw, supported on a ro... | 08/24/1999 |
| 5908224 | Vacuumatic concrete planer A vacuumatic concrete planer for preventing dust from escaping the dust collecting bag attached to the vacuum blower assembly . The vacuumatic concrete planer includes a wheeled housing, a motor being mounted to the housing, a grinder blade assembly being... | 06/01/1999 |
| 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 |
| 5855505 | Surface leveling tool A surface leveling tool for sanding wooden, painted and plastic surfaces without gouging. The tool comprises a handle of variable length attached to a head with a clamping element which holds a flexible plastic sandpaper insert. A specially formatted sand... | 01/05/1999 |
| 5772497 | Movable surface treatment device A motor is disposed above the protective covering or chassis of a movable surface treatment device. Via its vertically arranged power take-off shaft, the motor drives the horizontally extending rotor shafts, on which respectively one rotor cage is dispose... | 06/30/1998 |
| 5724956 | Riding saw for cutting concrete and similar materials The present invention provides a new and improved rideable power saw for cutting concrete, asphalt, rock and the like. The saw includes a seat for supporting the rider and a mechanical steering assembly for manipulating the position of a rear drive wheel ... | 03/10/1998 |
