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| Number | Title | Issue Date |
| 8187058 | Power-driven hand tool A power-driven hand tool comprises a drive spindle adapted to drive a tool, that can be driven to oscillate about its longitudinal axis, which tool can be fixed on a retaining section of the dive spindle by a securing element, and further comprises a displacing devi... | 05/29/2012 |
| 8113920 | Cut-off wheel comprising a double core clamping device The invention relates to a composite system for a cut-off wheel. The cut-off wheel includes an abrasive external cutting ring with depressions on both sides in the vicinity of the bore and two flush-fitting tensioning plates placed in the depressions to act as a cor... | 02/14/2012 |
| 7819724 | Device to hold and guide a hand-held tool for grinding or cutting A device for securing and guiding a hand-held tool. ... | 10/26/2010 |
| 7717771 | Angle grinder and angle grinder spindle-collet adaptor A simple three piece machined steel Collet-Spindle Adaptor for angle grinders includes a hat-shaped base having interior threading for coupling with a threaded spindle on an angle grinder. A sleeve extends therefrom and has an interior surface which engages with a c... | 05/18/2010 |
| 7695352 | Tool-mounting attachment The invention discloses a tool having a work plate which has a mounting area with a mounting opening for mounting the plate on a drive shaft of a drive, preferably an oscillatory drive, the mounting opening being suitably configured for being seated on the drive sha... | 04/13/2010 |
| 7666070 | Tool holder for a disc-shaped working tool A tool holder or a disc-shaped working tool (18) has a working tool holding member (14) and a working tool holding counter-member (16) rotatable, together with the working tool holding member, (14) about an operational axis (A) and cooper... | 02/23/2010 |
| 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 project inwardly. The base body also includes a mobile supporting element... | 11/24/2009 |
| 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 fixed rods of the front cover and the rear cover are passed through ... | 12/16/2008 |
| 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 combination of the cam and the elastic components is accommodated in a body. ... | 11/25/2008 |
| 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 provides a feed pressure for said grinding machine during grinding, said g... | 07/22/2008 |
| 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 mandrel assembly includes (i) a shaft component defining an axis and havin... | 06/17/2008 |
| 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 element of a working machine. The mandrel has a fixing element for de... | 05/06/2008 |
| 7363843 | Securing device for securing blade of cutting tools A securing device for securing a blade of a cutting tool includes a clamp assembly, a bolt, a resistant slice and a driving member. The clamp assembly has two clamp members between which the blade is clamped. The bolt extends into the clamp assembly and is screwed i... | 04/29/2008 |
| 7357702 | Grinding wheel The present invention refers to an improved grinding wheel, comprising an abrasive and/or cutting disk-shaped member that can be associated substantially coaxially with the free end of the rotating shaft of a grinding machine and equipped with at least one substanti... | 04/15/2008 |
| 7357194 | Percussion power tool A percussion power tool includes a motor (6) located in the tool-housing (4) for driving the output member (12) and the percussion mechanism (10), a chuck (20) for receiving a working tool (22), a locking mechanism (24 | 04/15/2008 |
| 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 performing said improved method and a method of manufacturing said tool ... | 03/25/2008 |
| 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 the arbor to clamp the blade washer against the blade. The clamp assemb... | 03/18/2008 |
| 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 (36) on a tool end of the work spindle ... | 03/18/2008 |
| 7303440 | Universal battery charger/power source adapter Universal adapters for portable electronic devices, and more particularly to cellular telephones using a 0.25V-24V direct current power supply to provide battery power supply to the connected cellular telephone, particularly in an emergency case, or in case an indoo... | 12/04/2007 |
| 7287310 | Method of forming and attaching a blade that can receive both symmetrical and asymmetrical arbors A method of forming a rotating blade for a cutting machine that can attach to either symmetrical arbors or asymmetrical arbors. The arbor mounting hole has five sides arranged in a cut gem configuration. The arbor mounting hole is symmetrical on either side of a mid... | 10/30/2007 |
| 7258515 | Tool holding fixture and insert tool The invention is based on a tool holder for a power tool (i0), in particular for a hand-guided power angle grinder, having a slaving device (12) by way of which an inserted tool (14), which has a disklike hub (64), can be operatively conn... | 08/21/2007 |
| 7249619 | Sawing device having an adjustable profile A device for adjusting a sawing device's width, wherein the sawing device comprises at least two circular blades 10, 12, facing each other and adjacently positioned, and a fastener 44 adapted to assemble the blades together. The device for adjusting th... | 07/31/2007 |
| 7241209 | Orbiting polishing tool An orbiting polishing tool for at least one of polishing and material removal. The orbiting polishing tool may include a housing of a housing assembly rotatable about a first axis. The orbiting polishing tool may also include at least one abrasive wheel rotatable ab... | 07/10/2007 |
| 7220091 | Fastening nuts with loosening assist functions A fastening nut includes an operation member, a female threaded member, and a control device. The operation member is operable by an operator to rotate in a fastening direction and a loosening direction. The control device is coupled between the operation member and... | 05/22/2007 |
| 7217126 | Dental instrument sharpening stone system A hand-held dental mirror carrying a sharpening stone for a dental instrument such as a curette, comprising a shaft supporting a mirror, a hand grip coupled to the shaft, and a sharpening stone coupled to the shaft. ... | 05/15/2007 |
| 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 it is capable of rotating freely and makes contact with the referenc... | 05/08/2007 |
| 7207876 | Flap wheel and method A flap wheel includes a hub with axially extending slots for receiving discrete packs, each pack including a clip receivable in the slot with walls projecting beyond the slot, and end caps fitting on the ends of the hub and including fingers interlaced with the ends... | 04/24/2007 |
| 7207873 | Hand machine tool with clamping device A hand power tool has a disk-shaped tool, and a clamping device for clamping the tool, the clamping device including at least one flange and a clamping unit for clamping the tool to the at least one flange and passing through the tool, the clamping unit and the at l... | 04/24/2007 |
| 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 grinding apparatus having means for holding one or more bits to be ground a... | 04/03/2007 |
| 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 |
| 7192226 | Shrink fit holder and methods of drilling and reaming A drill has a unitary drill bit and chuck structure that includes a drill bit and a chuck. The chuck encloses a portion of the drill bit and has a thread. A rotatable drive element having a thread engages the thread of the chuck. The chuck is heat shrunk onto the dr... | 03/20/2007 |
| 7189152 | Height adjustment system for rotating tools A height adjustment mechanism for varying the positioning of a rotating tool on a haft of a machine tool, such as a portable power tool, is in the form of a coupler between the blade and tool arbor. A head of the coupler accepts the tool and connects with a tool dri... | 03/13/2007 |
| 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 motion along the length of the stud when exertion is applied to the blad... | 03/06/2007 |
| 7179156 | Grinder with easily installable/detachable grinding disc and a linkage effect A grinder with easily installable/detachable grinding disc and a linkage effect. The grinder includes a main body in which a rotary shaft is disposed for a grinding disc mounted under a bottom end of the rotary shaft. A controlling button is switchable for powering ... | 02/20/2007 |
| 7179214 | Splitting blade changing device for block splitter A splitting blade changing device for a block splitter, comprising a revolving mechanism in which an upper rotary member is suspended by a supporting plate which is moved up and down by a cylinder installed in an upper part of a gate-like frame, a plurality of upper... | 02/20/2007 |
| 7156084 | Paint-ball sport gun with adjustable detent assembly A detent body with a center bore is secured to the chamber wall of a paint-ball gun. A floating detent with a hollow core and a domed tip reciprocates within the center bore, allowing the tip to extend into the chamber to restrict movement of a paint ball. Axially a... | 01/02/2007 |
| 7143760 | Method for removing trip hazards in concrete sidewalks A method for cutting a chamfer on an edge of a concrete slab, comprising the steps of: providing a generally circular, rotatable concrete saw blade that is coupled to a right-angle grinder motor with a blade-mounting hub having no blade attachment hardware projectin... | 12/05/2006 |
| 7144315 | Grinding wheel A grinding wheel including a ring-shaped wheel, a first fixing cap, a second fixing cap and a buffer member. The ring-shaped wheel has a fixing section and a working section formed along outer circumference of the fixing section. The first and second fixing caps are... | 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 |
| 7137185 | Tool holder for shrink-fit attachment of rotating tools with predominantly cylindrical shafts The invention relates to a tool holder (10) for shrink-fit attachment of rotating tools (11) with predominantly cylindrical shafts (12), having a chuck (13) with a clamping section (14) containing a conical receiving bore (15 | 11/21/2006 |
