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| Number | Title | Issue Date |
| 7997959 | Pneumatic tool having a rotor with a wear-resistant vane slot This invention relates generally to an improved rotor for a pneumatic abrading or polishing tool, such as an orbital abrading or polishing tool, and more particularly to such a rotor having a wear-resistant vane slot. A power abrading or polishing tool, such as a pn... | 08/16/2011 |
| 7625264 | Pneumatic dry wall sander This invention is a pneumatically driven dry wall sander with the capability to create a vacuum to trap the dust, which is produced during the sanding operation, and then safely eject the dust away from the work site. A pneumatic motor that is operated by air will o... | 12/01/2009 |
| 7544116 | Grinder with easily replacing grinding tool A grinder has a main body formed with a shaft chamber and a rotary shaft rotatably mounted in the shaft chamber. One end of the rotary shaft outward protrudes from the main body for installing a grinding tool thereon. A passage and a slide way are formed in the main... | 06/09/2009 |
| 7318768 | Low profile electric sander A power tool is a “low profile” power tool, that is the overall height of the power tool is sufficiently small that a user can grasp the top of the power tool with the user's hand and the hand will be positioned relative close to the bottom of the power tool com... | 01/15/2008 |
| 7311587 | Polishing machine with a brake device A polishing machine includes a body. A driving motor is installed in the body. The driving motor has an eccentric shaft mounted at a bottom of the motor, and a polishing wheel connector mounted under the eccentric shaft. A dust shield is mounted on the body and outs... | 12/25/2007 |
| 7192338 | Fixing device, clamping system and allocated tool A tool for co-operating with a fixing device wherein the tool comprises a tool body in the form of a circular disk, with a central opening and a radially inwardly facing locking surface. The fixing device comprises at least one radially outwardly facing projection o... | 03/20/2007 |
| 7169025 | Grinding tool for a grinder with rotary oscillating drive Disclosed is a grinding tool for a grinder comprising a rotary oscillating drive, the output shaft of which is driven so as to oscillate back and forth about its longitudinal axis and is configured for securing the grinding tool thereon. The grinding tool comprises ... | 01/30/2007 |
| 7001258 | Polishing jig for rolling mill backup roll bearing A polishing jig of a hydraulic integral system is improved to increase efficiency. A polishing jig 1 for bearing for use in back-up roll of rolling mill including a shaft member 2 on which an inner ring 104 of a bearing 100 for use in bac... | 02/21/2006 |
| 6965493 | Hydrodynamic pressure bearing system and spindle motor using the same A shaft secured to a hub is inserted and rotatably supported in a sleeve secured to a base. A dynamic pressure groove is formed in the inner peripheral surface of the sleeve, and lubricant is sealed between the shaft and the sleeve. The rotation of the shaft causes ... | 11/15/2005 |
| 6960121 | Method of honing bores In a method for honing a bore having first and second sections sequentially arranged in an axial direction of the bore, wherein the first section is hardened so that the first and second sections have different hardness, a honing tool is radially supported by positi... | 11/01/2005 |
| 6942556 | Polishing jig for bearing for use in back-up roll of rolling mill A polishing jig of a hydraulic integral system is improved to increase efficiency. A polishing jig 1 for bearing for use in back-up roll of rolling mill including a shaft member 2 on which an inner ring 104 of a bearing 100 for use in bac... | 09/13/2005 |
| 6942558 | Hand-held machine tool The invention is based on a hand power tool that comprises a motor (12)—with a motor shaft 14—located in a housing (10), which said motor shaft is supported via a shaft bearing (18) located on a side closest to a backing pad (16 | 09/13/2005 |
| 6899593 | Grinding apparatus for blending defects on turbine blades and associated method of use A grinding apparatus for use with an endoscope for viewing and blending defects on a turbine engine blade is provided. In one preferred embodiment air pulses from an air supply cause a grinding head on the end of a grinding tool to reciprocate at a predetermined spe... | 05/31/2005 |
| 6666524 | End-rounding devices and methods for end-rounding Methods and devices are provided for end rounding filaments for use on brushes. The devices include an air driven planetary gear system rotating a sanding wheel through a varied elliptical path that attacks the filaments from all sides.... | 12/23/2003 |
| 6503133 | Eccentric plate grinding machine with a cylindrical housing An eccentric plate grinder has a cylindrical housing having a lower region with an end-side edge, a rotatable grinding plate associated with a lower region, a ring-shaped brake positioned between the grinding plate and the edge, the grinding mechanism hav... | 01/07/2003 |
| 6450859 | Method and apparatus for abrading a substrate An apparatus for abrading a substrate including a moveable abrading tool having a bur for abrading the substrate, a stage for supporting the substrate, and a height sensing device in communication with the abrading tool to determine a vertical position of... | 09/17/2002 |
| 6390907 | Machine tool and machine tool spindle and workpiece mounting-apparatus and grinding process A motorized spindle assembly for a grinding wheel is fabricated with an opening extending through the spindle casing, and stator and so as to extend in the direction of the spindle axis of rotation at least the length of the stator. The opening is of a si... | 05/21/2002 |
| 6290587 | Electrically-powered polisher A power waxer is provided which includes structure for electrically connecting a power cord thereto while minimizing instances of accidental disconnection therebetween with the structure being located so as to substantially remove the power cord as an imp... | 09/18/2001 |
| 6244943 | Surface-processing apparatus An apparatus to process, in particular, curved surfaces using one or more grinding or polishing tools which includes a housing (2) having a drive system (3, 20, 19, 12) powering at least one tool seat (1) particularly for a grinding or polishing tool (W) ... | 06/12/2001 |
| 6203415 | Direct drive water-driven rotary tool An improved multi-purpose, direct-drive, water-driven rotary tool having improved torque and power. The present invention includes a housing having a central cavity, an impeller with angled, beveled blades around its periphery, a drive shaft connected to ... | 03/20/2001 |
| 6113753 | Systems and methods for making a magnetic recording medium on a flexible metal substrate A method is provided for processing a metal foil sheet to produce magnetic recording media. The method comprises providing an elongate metal foil sheet having a first side and a second side. The sheet is advanced through a plurality of processing stations... | 09/05/2000 |
| 6095900 | Method for manufacturing a workpiece carrier backing pad and pressure plate for polishing semiconductor wafers A carrier for semiconductor wafers to be polished comprises a backing pad vulcanized to a pressure plate. The backing pad is formed of a rubber material such as neoprene, SBR or natural rubber. An adhesive film of a thermosetting, thermally reactive mater... | 08/01/2000 |
| 6074277 | Polishing apparatus A polishing apparatus prevents uneven wear of the platen and improves the operating rate of the apparatus. The polishing apparatus provided with a platen 1 divided into an inner peripheral platen portion 11 and an outer peripheral platen portion 13 and wi... | 06/13/2000 |
| 5984765 | Ultrasonic vibration composite grinding tool An ultrasonic vibration composite grinding tool is disclosed wherein a plurality of small-sized grinding wheels are arranged for carrying out grinding of a ground material while applying vibration to the ground material, to thereby ensure stable operation... | 11/16/1999 |
| 5932789 | Bolt thread inspection and thread polishing device A device for the timely and accurate inspection of and polishing of large threaded bolts. The device is easily reconfigured for effective use on a large number of different sized bolt threads by replacing the polishing stones, depending on the dimensions ... | 08/03/1999 |
| 5833522 | Machining spindle apparatus having a hydrostatic bearing for machine tools A machining spindle apparatus has a hydrostatic bearing for machine tools. The machining spindle apparatus includes a built-in motor built into the middle of a housing, as well as front and rear hydrostatic bearings respectively mounted on the front side ... | 11/10/1998 |
| 5813903 | Sanding apparatus with a brake system A sander (1) has a motor (3) with a motor shaft (4) mounted in a bearing box (11) via an eccentric ball bearing (10). Coupled to the bearing box (11) is a pad (12) having a bulged square shape in a horizontal cross section. The sander (1) further includes... | 09/29/1998 |
| 5807169 | Oscillating hand tool The invention provides a braking system for a powered oscillating hand tool which tool comprises (i) a housing; (ii) a drive unit (2) having an electric motor (4) and a drive shaft (8); (iii) a bearing (28) mounted on the drive shaft (8) and located radia... | 09/15/1998 |
| 5739609 | Magnetic bearing apparatus A magnetic bearing apparatus comprises a pair of radial magnetic bearings arranged on both sides in the axial direction of an axial magnetic bearing. A pair of first touchdown bearings are arranged at both ends of a spindle. Annular slide bearings are mou... | 04/14/1998 |
| 5667428 | Apparatus for cutting and grinding a workpiece A machine for simultaneously milling and grinding a workpiece comprises milling and grinding wheels rotatable about respective first and second parallel axes, the second axis being offset radially with respect to the first axis. A single motor drives the ... | 09/16/1997 |
| 5662517 | Compressed-air-driven metal working machine A metal working machine which has a tool support on which a rotatable working spindle is mounted which can be acted upon by oil-free compressed driving air. A separate duct provides oil-free compressed braking air which serves to stop the tool support aft... | 09/02/1997 |
| 5496207 | Orbital disk grinder An orbital disk grinder comprises a housing, grinding disk which can be applied to a working surface, a motor for moving the grinding disk so that the grinding disk gyrates in a circular orbit and simultaneously rotates about its axis, and speed control m... | 03/05/1996 |
| 5462470 | Grinding wheel spindle assembly A grinding wheel spindle assembly comprises a first casing and a second casing spaced apart from and facing the first casing. A shaft has one end fixed to the first casing and another opposite end fixed to the second casing. A hollow, cylindrical-shaped r... | 10/31/1995 |
| 5443413 | Brushless spindle motor for a grinding machine including hydrostatic bearings A grinding machine provided with a spindle rotating under the influence of a cantilever mounted rare earth permanent magnet motor. Hydrostatic fluid film bearings are provided between the ends of the spindle and a bronze bearing to support the spindle in ... | 08/22/1995 |
| 5335560 | Table-top grinder power transmission mechanism Disclosed is a table-top grinder power transmission mechanism for driving a grinding wheel to polish the surface of a workpiece, which includes a spindle driven by a motor to turn the grinding wheel, and a reciprocating mechanism to reciprocate the spindl... | 08/09/1994 |
| 5323560 | Automobile polisher This disclosure relates to an automobile polisher and in particular to one including: a housing having a front handle and a rear handle for making it easier to be held; a clutch mechanism having a toothed ferrule, a control rod, a spring, a sliding disc a... | 06/28/1994 |
| 5317838 | Sanding apparatus Sanding apparatus comprises a housing for a motor driving a drive spindle. A sanding disk platen is mounted on one end of the drive spindle through a freely rotatable bearing disposed eccentrically with respect to the drive spindle. A sanding disk is disp... | 06/07/1994 |
| 5205078 | Rotary apparatus A rotary apparatus includes a rotary spindle, a front end portion of which projects from a shell to an outside thereof and which is supported by magnetic force while the spindle is rotating, a working tool being mountable on the front end portion of the s... | 04/27/1993 |
| 5155941 | Industrial endoscope system having a rotary treatment member Disclosed is an industrial endoscope system having a rotary treatment member, attached to a hard top part at a distal end of an insertion unit, for effecting a treatment such as grinding by rotating this treatment member itself. The system includes a movi... | 10/20/1992 |
| 5136816 | Edge sharpener for skis According to the present invention there is provided an apparatus for sharpening an elongate edge, especially the blade edge of a ski. The apparatus comprises an abrasive disc set in a housing, a motor unit for rotating the disc about its axis, a guide su... | 08/11/1992 |
