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7621801 |
Clamping device comprising a centering device on a grinding spindle rotor, and rotary part comprising one such centering device
A grinding disk base body is fixable to the centering section of a grinding spindle rotor in a centering manner by the base body which includes an inner recess from which two fixed projections...
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7510466 |
Shaft adapter for grinding cup
A shaft adapter for removably mounting to the output or drive shaft of a grinding machine is disclosed. The shaft adapter is a three-component device which includes a collar portion, a compressible...
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7484736 |
Accessory for a rotary tool
A rotary tool accessory includes a body defining an axis of rotation and having a work piece contacting surface and a drive portion. The body has defined therein a body opening including a first...
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7465222 |
Grinding wheel
A grinding wheel includes a grinder engaged between a front cover and a rear cover, and rough portions of the front cover and the rear cover press against the grinder tightly. After center rods and...
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7455574 |
Locking system for a spindle of a power tool
A mechanism for locking and cushioning a spindle of a power tool includes a driving disk, a combination of a cam and a plurality of elastic components, and a plurality of roller pairs. The...
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7402093 |
Grinding apparatus for buttons on rock drill bit
The present invention relates to grinding apparatus for grinding the hard metal inserts of rock drill bits, said grinding apparatus having a grinding machine carried on an support system that...
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7387563 |
Mandrel and accessory and related combination for use with a rotary tool
A mandrel and accessory and related combination for use with a rotary tool are disclosed. For instance, the mandrel and accessory combination includes a mandrel assembly and an accessory. The...
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7367874 |
Mandrel for working disks
A mandrel or a clamping element for working disks, for example, separating disks, grinding disks and/or polishing disks, contains a shaft to fix the mandrel to a receiving element or to a clamping...
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7347769 |
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...
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7344435 |
Hand-held power tool with clamping device for a tool
A hand-held power tool ( 10 ) is specified, comprising a work spindle ( 12 ) for driving a tool ( 68 ), said tool ( 68 ) being fastenable between a fastening element ( 38 ) and a holding portion (...
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7343841 |
Blade clamp assembly
A blade clamp assembly for retaining a rotary blade on the arbor of a rotary tool includes a blade washer for engaging the blade to hold the blade on the arbor and a clamp assembly threaded into...
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7213591 |
Groove cutting tool
A cutting tool in which a disc-like cutter blade is fixed to a spindle of a rotary electric tool, comprising a first guide plate, which is attached on electric tool side to a cutter blade such that...
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7198556 |
Grinding apparatus
A grinding apparatus for grinding the hard metal inserts or working tips of drill bits (percussive or rotary), tunnel boring machine cutters (TMB) and raised bore machine cutters (RBM), said...
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7186172 |
Spring force adapter for round blade for a grinder
A blade-mounting adaptor for a power tool has a blade-mounting stud on which the blade is mounted at a first end. The blade is mounted upon the stud in a manner such that it is capable of axial...
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7137875 |
Grinding head for a mobile grinding machine and mobile grinding machine comprising such a grinding head
The invention concerns a grinding head for a mobile grinding machine which is suitable for grinding floor surfaces, and a mobile grinding machine comprising such a grinding head. The grinding...
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7118465 |
Grinding assembly of semiconductor wafer back-grinding apparatus and method of fastening a grinding plate to a grinding mount of the same
A semiconductor manufacturing apparatus includes a wafer support having a grinding base on which a wafer is disposed, and a grinding assembly disposed above the grinding base. The grinding assembly...
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7086937 |
Wheel shaft supporting apparatus for grinding machine
A pair of hydrostatic radial bearing devices 42, 43 is mounted on right and left side surface of a front portion of a wheel slide 34 in order to support rotatably wheel shafts 45, 52 ...
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7029384 |
Grinding disk
A grinding disk ( 13 ) for manually held, motor-driven grinders ( 1 ) has a centrally arranged fastening recess ( 15 ) open at the grinding disk upper side with an internal thread arrangement ( 16...
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7029371 |
Jig for guiding a grinder
A jig is structured to guide a grinder along the inner surface of the base or cover of a combustion turbine. The jig includes a base having a bottom surface with a plurality of rollers arranged in...
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7018278 |
Device for the fixture of a tool holder
A detachable fixture of a rotary machining tool ( 3 ) on the tool spindle ( 2 ) of a machine tool and in particular of a grinding wheel flange ( 4 ) on the spindle nose ( 1 ) of a grinding spindle...
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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...
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6981911 |
Abrasive drill bit
An abrasive drill bit and method of use on glass, ceramics, tile, stone and similar solid materials, both natural and synthetic. A circle is ground into the material using a cylindrical drill bit,...
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6966824 |
Arrangement for detachably securing a grinding wheel or a group of grinding wheels on a wheel spindle
Arrangement for releasably fastening a grinding wheel or a group of grinding wheels on a wheel spindle, for example, a group of grinding wheels in a spectacle-lens-edging machine. The machine has a...
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6949015 |
Machining apparatus equipped with rotary tool
A machining apparatus comprises a rotating spindle mounted rotatably, a rotating drive source for rotationally driving the rotating spindle, a rotary tool detachably mounted on the rotating...
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6945862 |
Power tool having a receptacle for securing a tool
A power tool having a receptacle for securing a tool to a drive shaft thereof is disclosed. The receptacle comprises a receiving opening, preferably being arranged on the tool. The receiving...
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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 )...
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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...
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6869346 |
Receptacle for grinder tools
The invention is based on a tool receiver for a grinder, in particular for a handheld angle grinder ( 10 ), having a carrier device ( 12, 14, 16, 182, 184, 300 ), via which an application tool (...
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6863596 |
Abrasive article
Abrasive article including a backing plate. Backing plate has a first major surface and a second opposite major surface. A central aperture extends through backing plate. An abrasive layer is...
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6855039 |
Stabilizing collar for a concrete saw blade
A stabilizing collar for a concrete saw blade provides a rigid blade structure for smoother cutting operations, particularly in partially cured concrete. A pair of the present collars are secured...
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6848984 |
Device for the treatment of surfaces
This device for the treatment of surfaces is specifically conceived as an addition to motor-driven hand tools. It includes a device mounting that can be installed securely in position on a housing...
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6814655 |
Attachment for grinder
An insert tool with grinding blade and a supporting disk, and with a hub, which has at least one opening that permits the hub to be clamped to a driver flange of a grinder, which flange is...
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6813984 |
Attaching device
A device for attaching two units ( 17,18 ) provided for rotation in unison about an axis, having axial and radial attachment of the units relative to each other. The attaching involves first...
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6793566 |
Tool guide
A guide for a machine tool including a housing adapted for mounting onto and traversal along an elongate track, the housing including a carriage for mounting a guide arm for controlled movement...
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6786811 |
Grinding machine tool support
A grinding machine tool receptacle for a hand-guided angle grinding machine has a slaving device by which an insert tool is operatively connectable to a drive shaft, the insert tool is operatively...
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6783441 |
Apparatus and method for transferring a torque from a rotating hub frame to a one-piece hub shaft
An apparatus and a method for transferring a rotational torque from a hub frame to a one-piece hub shaft onto which a pad conditioning disc is attached are described. The apparatus is a one-piece...
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6743085 |
Rotating back up abrasive disc assembly
A holder for an abrasive disc allows for a quick manual change of the abrasive disc. The holder including an uncoupling mechanism that in turn includes a handle comprising a pin and an adjacent hub...
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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...
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6705931 |
Plane sander with exchangeable part of sanding sole
A sanding machine comprises a housing with a drive arranged in the housing. A substantially flat sanding sole having a main plane is mounted on the housing for movement in the main plane. The...
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6676498 |
Bi-directional grinder
A bi-directional grinder for allowing an operator to change the direction of rotation of the wheel, having a housing, a motor capable of bi-directional rotation, and a shaft. The grinding wheel is...
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6669541 |
Abrading method and holding device
A method for grinding, polishing, buffing, scaling, and grooving a finish onto and into a workpiece. This method provides the versatility of a hand held type angle grinder to be used while being...
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6629877 |
Precision glass grinding
Improved accuracy of grinding glass pieces for use in stained glass art and the like. The pattern of the final outer boundary of each piece of glass is traced onto frosted mylar tracing paper to...
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6524166 |
Grinding tool for grinding buttons of a rock drill bit, a grinding cup, a grinding spindle and method for mounting the grinding cup on a grinding spindle
A grinding tool for grinding buttons of a rock drill bit includes a spindle having a longitudinal axis of rotation, and a grinding cup mounted on the spindle by a tongue-and-socket connection. A...
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6520895 |
Polishing device and polishing pad component exchange device and method
A polishing device includes a wafer chuck mechanism which retains a wafer while its plane to be polished faces upward, a polishing pad component which possesses a polishing plane which polishes the...
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6511369 |
Grinding wheel replacement safety structure for handheld grinding wheel device
A grinding wheel replacement safety structure for handheld grinding wheel device is located between a transmission grinding wheel fitting end and an actuating push button, and includes a safety...
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6471575 |
Brush roll and its brush device
A brush element U includes an assembly of annular disks 2 joined together as arranged side by side. Each disk has polishing bristles or cleaning yarns 1 implanted in its outer periphery. The...
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6454639 |
Clamping device for grinding discs
The invention relates to a clamping device for grinding discs ( 3, 4 ) having clamping elements which are formed by a clamping flange ( 1 ) and a clamping nut ( 2 ). A rigid, preferably metallic...
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6371837 |
Method of refining a surface
A backup pad for engaging and supporting abrasive sheets, the backup pad being mounted securely to a drive shaft to prevent relative rotation thereto, and to allow easy mounting and dismounting of...
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6350188 |
Drive system for a carrier head support structure
A chemical mechanical polishing apparatus has a polishing station, a transfer station, a carrier head to support a substrate, a rotatable carousel supporting the carrier head, a carousel drive...
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6340022 |
Blade and arbor adaptor for circular saw
A circular saw having a driven shaft and mounting a blade-receiving arbor are adapted to carry a blade having a circular inner margin by the use of an arbor adaptor. The arbor adaptor is provided...
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