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| Number | Title | Issue Date |
| 8096854 | Machine tool and tool, both with an automatic balancing device A machine tool and a tool include an automatic balancing device, with a first balancing mass located such that it is movable relative to the shaft of the machine tool in all radial directions and in the circumferential direction, that may be started rotating via the... | 01/17/2012 |
| 7510464 | Vibration damping device, in particular for an electric hand machine tool, and a transmission equipped with such a vibration damping device A vibration damping device has a rotation element connectable to a drive shaft in a frictional, nonpositive way and provided with at least one chamber filled with a material selected from the group consisting of a pourable material and a fluid material and capable o... | 03/31/2009 |
| 7284460 | Balancer A weight 4 which is held by a weight holder 3 in a balancer has a pressing face 4b′ which is pressed against a guide face 12a provided along the circumferential direction of rotation of the weight holder 3 by centri... | 10/23/2007 |
| 7270598 | Orbital sander An orbital sander is provided having a number of novel features including a high speed permanent magnet DC motor having a relatively flat rpm versus torque curve. The sander includes an AC to DC power supply, a remotely located on/off switch operated by a switch act... | 09/18/2007 |
| 7153199 | Light-weight modular counterweight apparatus for an orbital abrading machine The present invention generally comprises a counterbalancing assembly for a random orbital machine including an adapter and a counterweight. The adapter includes a recess and the counterweight is disposed in the recess and detachably fastened to the adapter. In some... | 12/26/2006 |
| 6974362 | System and method for automatically compensating for unbalanced resistance forces A balancing method and apparatus is used for dynamically balancing an out of balance condition in a rotating body caused by resistance forces acting tangentially to the body. A device having a rotatable component and automatic or dynamic balancing includes a housing... | 12/13/2005 |
| 6802764 | Power tool comprising a securement flange A power tool comprising a drive shaft for driving a tool, a recess at a free end of the drive shaft, and a detachable securement flange having a securement section on a side facing the drive shaft is disclosed. The securement section is form-fitted for insertion int... | 10/12/2004 |
| 6758731 | Orbital sander An orbital sander is provided having a number of novel features including a high speed permanent magnet DC motor having a relatively flat rpm versus torque curve. The sander includes an AC to DC power supply, a remotely located on/off switch operated by a switch act... | 07/06/2004 |
| 6726546 | Method and apparatus for deburring machined workpieces A method and apparatus for deburring nonmetallic machined workpieces. A deburring material of sufficient hardness to debur nonmetallic workpieces without causing scarring thereto is rubbed against a workpiece to effect deburring. The deburring material has a duromet... | 04/27/2004 |
| 6572455 | Method and apparatus for deburring machined workpieces A method and apparatus for deburring nonmetallic machined workpieces. A deburring material of sufficient frictional engagement and hardness to debur nonmetallic workpieces without causing scarring thereto is rubbed against a workpiece to effect deburring.... | 06/03/2003 |
| 6520845 | Polishing apparatus A polishing apparatus comprises a polishing member that has a wide stable polishing range to perform effective polishing, even if a rotation axis moves away from the edge of a workpiece. A polishing member holder holds the polishing member, and a workpiec... | 02/18/2003 |
| 6475066 | Random-orbit head with concentric lock-up feature An abrasion tool that is selectively configurable for spin or random-orbit without the need for a reversible motor.... | 11/05/2002 |
| 6471453 | Balancing assembly for a rotating member Briefly, according to this invention, there is provided a balancing assembly for balancing a rotating member and the combination of a rotating member and balancing assembly. The balancing assembly includes an annular ring, a locking member and a cover. Th... | 10/29/2002 |
| 6464572 | Portable power tool with an anti-vibration balancing device A portable power tool is provided which has a rotating output shaft (13) journalled in two axially spaced bearings (15, 16). A working implement mounting device (19) and an anti-vibration balancing unit (20) are provided at a forward end (13a) of the outp... | 10/15/2002 |
| 6419443 | Glass product machining apparatus A glass product machining apparatus comprises a grindstone rotatable around an axis by means of a motor, moving table movable under the grindstone in the cross direction of the grindstone, frame for supporting the grindstone for up-and-down motion, lift, ... | 07/16/2002 |
| 6341600 | Mechanism for adjusting rotational balance of cutting machine A mechanism for adjusting a rotational balance of a cutting machine, which comprises a spindle unit having a rotary spindle, a securing flange mounted on an end of the rotary spindle and having a tool-mounting portion along the outer periphery thereof, an... | 01/29/2002 |
| 6220945 | Polishing apparatus A polishing apparatus comprises a polishing member that has a wide stable polishing range to perform effective polishing, even if a rotation axis moves away from the edge of a workpiece. A polishing member holder holds the polishing member, and a workpiec... | 04/24/2001 |
| 6168506 | Apparatus for polishing using improved plate supports A set of supports are advantageously disposed on a top plate having a polishing surface useful for polishing workpieces, thereby applying substantially uniform pressure to the top plate. In a preferred embodiment, the supports are non-isosceles triangular... | 01/02/2001 |
| 6032313 | Household appliance having plural coaxially rotatable or parallel linearly movable heads or tools A household appliance of the type in which a cleaning, polishing, or massaging effect is obtained by a rotating head or tool is improved by splitting the cleaning, polishing, or massaging head or tool into concentric or parallel multiple heads or tools ar... | 03/07/2000 |
| 5997387 | Grinding wheel with at least two wheel cores for circumferential grinding A grinding wheel is for use in a grinding machine, and is attached on a wheel spindle of the grinding machine for simultaneously grinding at least two parts of a workpiece. The grinding wheel includes at least two wheel cores. Each of wheel cores has a di... | 12/07/1999 |
| 5810527 | Rotary tool with balancing rings A rotary tool, in particular a high-speed milling or boring tool, has at least two balancing rings (17, 18) with a variable mass around their circumference mounted on the tool holder or tool body (1). Two concentric balancing rings (17, 18) whose position... | 09/22/1998 |
| 5746647 | Sleeve flange type mounting device for mounting a grinding wheel on a spindle of a grinding machine A sleeve flange type mounting device for mounting a grinding wheel on a spindle of a grinding machine consists of a sleeve flange defining a sleeve portion and a flange portion, a pressing plate fitted on the sleeve portion for clamping the grinding wheel... | 05/05/1998 |
| 5688160 | Apparatus for the dynamic balancing of a rotating body An apparatus for balancing a rotating body, in particular the grinding wheel of a grinding machine, comprises an assembly secured to the grinding wheel and rotating with it, with masses having an adjustable arrangement, electrical motors for controlling a... | 11/18/1997 |
| 5676025 | Apparatus for balancing a rotary member An apparatus for balancing a rotary member such as a grinding wheel has at least one balancing weight which is guided movably for varying its position with respect to the axis of rotation of the rotary member. The balancing position of the balancing weigh... | 10/14/1997 |
| 5628676 | Counter-balance for disk texturizing apparatus An apparatus and method is disclosed for texturizing magnetic storage disks in which the vibration due to forces imparted by oscillating motion is greatly decreased. Typically, the oscillating motion is caused by an oscillating spindle assembly which is s... | 05/13/1997 |
| 5540615 | Machine balancer An in-process rotary machine balancer which utilizes a plurality of vibration wave motors with unbalanced rotor members for positioning the unbalanced rotors to cancel a measured imbalance of a rotating machine. Each unbalanced rotor member is positioned ... | 07/30/1996 |
| 5354186 | Machine balancer with peristaltic fluid pump A balancer arrangement for a rotating machine element employs a peristaltic pump which pumps a balancing fluid to respective balancing chambers via flexible tubing. In an arrangement which employs four balancing chambers, two peristaltic pumps may be empl... | 10/11/1994 |
| 5341603 | External hone A honing fixture includes a mounting ring 30 carrying a plurality of circumferentially spaced rollers 32. A ring gear 34 rotates about rollers 32 and carries segmented ring segments 40a and 40b for rotation therewith about a honing axis. Ring segments 40a... | 08/30/1994 |
| 5263995 | Apparatus and method for balancing a rotary tool assembly An apparatus and method for balancing a high speed rotary tool assembly (1) is provided, wherein the apparatus includes a rotary tool holder (3) having an axis of rotation (11), a cutting tool retainer (13) in the rotary tool holder (3) having a lockring ... | 11/23/1993 |
| 5243788 | Grinding wheel balancing method and apparatus In a method and an apparatus for balancing a grinding wheel, balancing weights on the grinding wheel remain secured to the grinding wheel in an unbalance measuring operation, and the positions at which the balancing weights are secured to the grinding whe... | 09/14/1993 |
| 5240358 | Method and apparatus for tool balancing A method and apparatus for balancing tools 16 is disclosed which may uniquely characterize a needed balance for each of the individual tools 16 and which may then store the needed balance conditions so as to use the balancing data upon every use of the in... | 08/31/1993 |
| 5228244 | Pneumatic tool having synergetic dust-removal drafting effect A pneumatic tool includes: a grip portion, a tool body having a rotor rotatably mounted in a rotor chamber of the tool body as driven by a compressed air source flowing through an inlet passage in the grip portion, a tool unit secured to a lower end of a ... | 07/20/1993 |
| 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 |
| 5125777 | Rotary tool A rotary tool is provided with a shank and a collar-like section, and further includes a plurality of screw-threaded holes drilled in a vertical end face of the collar-like section, in parallel relationships with the axis of the collar-like section. A plu... | 06/30/1992 |
| 5125188 | Grinding wheel having grinding monitoring and automatic wheel balance control functions A grinding wheel for grinding a workpiece, including a core portion connected to a drive shaft, and an abrasive portion fixed to an outer circumferential surface of the core portion for grinding the workpiece. The grinding wheel further includes at least ... | 06/30/1992 |
| 5096345 | Balanceable holder for machine tools A balanceable tool holder for machine tools includes a main body with a holding cylinder. In addition, a flange encircles the main body. A plurality of screw holes extend longitudinally in the main body in which adjusting screws are moveable inwardly and ... | 03/17/1992 |
| 5074723 | Method and apparatus for balancing a rotary tool assembly The present invention entails a method and apparatus for balancing a high speed rotary tool assembly. A pair of closed balancing rings are journalled about a cylindrical bearing surface formed around a rotary tool holder with each ring being rotatively mo... | 12/24/1991 |
| 5040340 | Random orbital sander adapter An adapter for converting a right angle grinder into a random orbital sander which employs a sanding pad assembly, the right angle grinder having a threaded output shaft, the adapter including a cylindrical body having a bearing aperture on its front side... | 08/20/1991 |
| 5033923 | Rotary tool A rotary tool is provided with a shank and a collar-like section, and further includes a plurality of screw-threaded holes drilled in a vertical end face of the collar-like section, in parallel relationships with the axis of the collar-like section. A plu... | 07/23/1991 |
| 5027873 | Balancing of tooling for a wood lathe A multi-faceted T-slot cylinder for a cutterhead is mounted to a wood lathe arbor using set screws installed in tapped holes which are provided near opposite ends of the cylinder in diametrically opposite faces of the cylinder (rather than in the same fac... | 07/02/1991 |
