Rotary Cylinder Tool Patents (Class 451/358)
  • Patent number: 11123838
    Abstract: A hand-held electric power tool for grinding sheetrock particularly adapted to making butt joints have a tapered or recessed juncture for filing with tape embedded with mud such that the joints are ready for painting or covering with wallpaper without being noticeable. The tool includes a grinding cylinder with barbs protruding therefrom which cut or grind the sheetrock edges without penetrating the full depth of the sheetrock or otherwise weakening or damaging the butt joint.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: September 21, 2021
    Inventor: Jack Huffman Scarborough
  • Patent number: 10427263
    Abstract: The hand-held cutter includes: a cutting blade which is configured to rotate about a rotation shaft to cut a target; a cutter body which rotatably supports the cutting blade; a protection cover which covers a portion of the cutting blade and is rotatable about the rotation shaft; a pressing mechanism which is configured to move toward the protection cover to press a guide plate onto a support plate so as to impose and maintain restrictions on rotation of the protection cover; and a torsion coil spring exerting a biasing force to move the pressing mechanism toward the protection cover. The hand-held cutter is configured such that moving the pressing mechanism, against the biasing force of the torsion coil spring, away from the protection cover removes restrictions on the rotation of the protection cover.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: October 1, 2019
    Assignee: YAMABIKO CORPORATION
    Inventor: Hiroshi Nakaganna
  • Patent number: 10155304
    Abstract: An electric tool, such as an angle driver, has a main tool body with a front portion and a rear portion positioned opposite to the front portion. The main tool body houses a motor configured to receive electricity to function as a drive source. A gear head is coupled with the front portion of the main tool body wherein the gear head has a spindle in communication with a motor axis of the motor via mesh-engagement of bevel gears associated with the motor axis. The spindle has with a cutter tool accessory attached thereto such that rotation of the motor axis produces a commensurate rotation of the cutter tool accessory. Battery attachment portions are associated with the rear portion of the main tool body and are configured to receive a corresponding set of batteries that provide electricity to power the motor.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: December 18, 2018
    Assignee: MAKITA CORPORATION
    Inventors: Miyabi Ito, Ryunosuke Kumagai, Shin Sugiura, Akira Mizutani, Takahiro Kawakami
  • Patent number: 9855651
    Abstract: In an angle-grinder with a rotating handle and a latch for fixing the handle in two different rotational positions, an interlock mechanism is provided for greater security against unwanted rotation of the handle when the tool is being used. The interlock mechanism is moved to a locking position by depressing the trigger to start the motor, and thus provides a safety lock backing up the latch, in case the latch is accidentally released during use. In its unlocking position the interlock mechanism may prevent actuation of the trigger when the handle is not properly aligned in one of its operating positions.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: January 2, 2018
    Assignee: TECHTRONIC POWER TOOLS TECHNOLOGY LIMITED
    Inventors: Yun Qiang Xin, Gong Wei Zhang
  • Patent number: 9320583
    Abstract: Accordingly, embodiments of the presently described system and method include an equine dentistry burr with a head having a first end and a second end. Some embodiments also include a shank fixably connected to the first end of the head, and wherein the shank is configured to connect the equine dentistry burr to a handpiece assembly. Further embodiments also include a floating guard coupled to at least one of the cylindrical head and the shank, and configured to rotate independently of the cylindrical head and the shank.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: April 26, 2016
    Inventors: Louis Dale Jeffrey, Patrick Benhower
  • Patent number: 9216490
    Abstract: A guard device includes a fastening element defining a central opening and configured to be fastened onto a collar of a power tool, a guard portion extending from the fastening element and configured to surround at least a portion of a tool holder extending from the collar, a braking element pivotably supported on the fastening element and including a frictional engagement surface that is configured to be pivoted against the collar so as to apply a frictional braking force against the collar when the power tool is in an operating state, and an actuating element moveably supported on the fastening element and configured to pivot the braking element such that the frictional engagement surface is positioned in contact with the collar. The frictional engagement surface is configured to increase the braking force applied to the collar in response to a braking state of the power tool.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: December 22, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Cornelius Boeck, Joachim Schadow, Tobias Overbeck, Rainer Vollmer
  • Patent number: 9204750
    Abstract: An electric hand held fruit and vegetable coring device having a cylindrical sealed tube, with a plurality of quickly changeable augers, the augers providing varied bits and tips, the augers affixed to a constant diameter shaft with detent, the detent quickly engaged with the cupped sleeve and disengaged from the cupped sleeve that is driven by the motor, the progressively activated switch and motor providing a progression from on, to speeds increased by steps, to off, the power pack removable, the power pack, progressively activated switch, motor, cupped sleeve, and auger receipt providing a balanced ergonomic advantage for a user.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: December 8, 2015
    Inventors: Louis Qussar, Naomi Qussar
  • Patent number: 9144923
    Abstract: Front feet are provided at a lower part of a cutting-machine main body via a foot holder. Furthermore, a slider positioned on a front side relative to the front feet is provided at the lower part. When a workpiece to be cut is to be cut by a blade, the cutting-machine main body is tilted so as to let the blade go down. When the cutting-machine main body is tilted, a state where the front feet are in contact with the workpiece is switched to a state where the slider is in contact with the workpiece. Then, by moving the cutting-machine main body forward while sliding the slider on the workpiece, the workpiece is cut by the blade. In the cutting operation, the front feet can get away from the workpiece. Therefore, damage of the front feet can be prevented, and the running cost can be suppressed.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: September 29, 2015
    Assignee: HITACHI KOKI CO., LTD.
    Inventors: Yoshikazu Yokoyama, Yasuoki Kawahata
  • Patent number: 9073174
    Abstract: An electric handheld tool having a safety guard which is rotatably adjustably mounted thereto, and which further has a resilient latching means; a counter latching means borne by the electric handheld tool, and which cooperates with the latching means; and a stop means moveable between first and second portions and which cooperates with the latching means such that latching means, and counter latching means are either, on the one hand, held in engagement, or are released from engagement so as to permit selective movement of the safety guard.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: July 7, 2015
    Assignee: METABOWERKE GMBH
    Inventors: Alexander Rohde, Michael Keller
  • Patent number: 9061533
    Abstract: A label information degrader for substantially and permanently degrading the legibility of label information on a label attached to a container, said label information degrader including an abrasion component positioned to contact the label of the container during use, an abrasion cleaning component, a powered drive component that rotates the abrasion component and may rotate the abrasion cleaning component, a housing component that positions and provides direct or indirect structural support to the device components, and one or more user protection components, designed to avoid unintended user contact or injury from the label information degrader.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: June 23, 2015
    Inventor: Thomas Richard McHugh
  • Patent number: 8998685
    Abstract: Disclosed is a grinder, in particular an oscillating grinder, having a grinding spindle, to which a grinding tool can be attached, and having a housing, and having a dust extraction duct which can be attached to the housing by means of a pivot joint and a latching connection.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: April 7, 2015
    Assignee: C. & E. Fein GmbH
    Inventors: Olaf Klabunde, Heinrich Weber
  • Patent number: 8986076
    Abstract: The present invention is an original direct motor-drive portable angle grinder with a disc type motor installed in a position adjacent to the grinding wheel and an outer motor rotating part coaxially and directly driving the grinding wheel. By means of the direct drive, the present invention prevents the emission of noise made by angle type transmission devices. Moreover, an inertial body is installed on the rotating housing that is integrated with the rotating part to form a flywheel or the rotating housing and the inertial body are integrated into a single reinforced structure to enable a flywheel function in order to improve the grinding, polishing and machining or cutting abilities of the grinding wheel.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: March 24, 2015
    Inventor: Tai-Her Yang
  • Patent number: 8961272
    Abstract: A grinding device is specified, comprising a housing in which a tool spindle for driving a tool is mounted, comprising a protective hood which can be locked on the housing, and comprising means which allow the tool spindle and the protective hood to be locked. An actuating device is provided which is displaceable on the housing between a first position in which the tool spindle is released and the protective hood is locked against rotation and a second position in which the tool spindle is locked against rotation and the protective hood can be adjusted in the angular position thereof on the housing.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: February 24, 2015
    Assignee: C. & E. Fein GmbH
    Inventors: Arne Timcke, Winfried Biller, Oliver Stephan, Philipp Mueller
  • Publication number: 20150017892
    Abstract: The present invention relates to an angle grinder having a front transmission housing for enclosing a transmission arrangement which has a closing surface that faces away from a free end of the tool spindle, and wherein the maximum distance between the closing surface and an end face of the free end of a tool spindle defines a height of the transmission housing, and wherein the height has a predefined ratio to a diameter of a disc-shaped tool, of about 1 to about 5.
    Type: Application
    Filed: June 18, 2014
    Publication date: January 15, 2015
    Applicant: METABOWERKE GMBH
    Inventor: Martin Pietzsch
  • Patent number: 8926409
    Abstract: A handheld machine, comprising a first grip (106) for receiving a first hand of a user of the machine, a second grip (118) for receiving a second hand of the user of the machine, and at least one coupling (114) for connecting the handheld machine to a flexible line (116). The second grip (118) extends in its usage position over the coupling (114) but is displaceable from this position.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: January 6, 2015
    Assignee: Oy KWH Mirka AB
    Inventor: Caj Nordstrom
  • Publication number: 20150004885
    Abstract: An angle grinder is provided and may include a cutting arm on which a tool may be mounted in a rotating manner about an axis of the grinder and a guide element that is arranged on the axis to control a cutting depth of the tool during a workpiece cutting operation.
    Type: Application
    Filed: April 1, 2014
    Publication date: January 1, 2015
    Inventor: Klaus SCHOLZ
  • Patent number: 8905822
    Abstract: A flange nut for use in mounting a power tool component onto a rotatable spindle of a power tool. The flange nut includes one or more non-circular apertures into which an end of a shaped tool such as an Allen wrench may be inserted. Torquing or otherwise applying a force to a portion of the shaped tool serves to thread the nut along the spindle either towards the power tool component to secure the power tool component on the spindle or away from the power tool component to allow for removal of the power tool component.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: December 9, 2014
    Assignee: Black & Decker Inc.
    Inventor: Jeffrey J. Meyer
  • Patent number: 8888565
    Abstract: The present invention is a sharpening tool and sharpening system for sharpening snowmobile carbide wear rails and studs and a kit of parts that includes the sharpening tool and a steering member having a carbide wear rail. The sharpening tool is attachable to the chuck of a hand held drill and includes a shaft attachable to the chuck of the hand held drill and cylindrical head affixed to the shaft. The cylindrical head includes a rail groove surfaced in an abrasive material for sharpening wear rails.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: November 18, 2014
    Assignee: Welch Manufacturing Technologies, Ltd
    Inventor: Glenn S. Welch
  • Patent number: 8857421
    Abstract: A handheld engine-driven cutter is provided with a disk blade and a main body that drives the disk blade by an engine. A guard surface for repelling chips of a workpiece that scatter from the disk blade to below the main body is formed on the main body. The guard surface has an asymmetric shape with respect to a boundary that is a rotating plane of the disk blade.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: October 14, 2014
    Assignee: Makita Corporation
    Inventors: Masaki Kondo, Tomonobu Nashimoto
  • Publication number: 20140285971
    Abstract: A hand power tool, in particular an angle grinder, includes a drive unit, an electronic unit, and a cooling device configured, at least partially, to cool the drive unit and/or the electronic unit. The cooling device includes at least one cooling unit configured, at least partially, for localized cooling.
    Type: Application
    Filed: March 20, 2014
    Publication date: September 25, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Manfred Schuele, Helmut Wanek, Cornelius Boeck, Joachim Schadow, Joerg Maute, Florian Esenwein, Manfred Lutz, Daniel Barth
  • Publication number: 20140242888
    Abstract: A hand power tool includes a drive unit, an electronic unit, and a switching unit. The switching unit includes at least one actuating element configured to activate and deactivate the drive unit. The switching unit also includes at least one switching element configured to be positioned in at least one first switching position to set at least one first operating mode. The at least one switching element is also configured to be positioned in at least one second switching position to set at least one second operating mode.
    Type: Application
    Filed: February 19, 2014
    Publication date: August 28, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Cornelius Boeck, Joachim Schadow, Joerg Maute, Florian Esenwein, Manfred Lutz, Daniel Barth
  • Publication number: 20140242890
    Abstract: An angle grinder including at least one boost mode unit configured to provide a boost mode, and a switching-over unit configured to switch over between a conventional mode and the boost mode.
    Type: Application
    Filed: February 21, 2014
    Publication date: August 28, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Cornelius Boeck, Joachim Schadow, Joerg Maute, Florian Esenwein, Manfred Lutz, Daniel Barth
  • Publication number: 20140242889
    Abstract: An angle grinder including at least one ECO mode unit configured to provide an ECO mode and at least one functional device configured to make available a function of the angle grinder that is at least partially essential for an operating state.
    Type: Application
    Filed: February 21, 2014
    Publication date: August 28, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Manfred Schuele, Helmut Wanek, Cornelius Boeck, Joachim Schadow, Joerg Maute, Florian Esenwein, Manfred Lutz, Daniel Barth
  • Publication number: 20140242887
    Abstract: A hand power tool includes a drive unit, an electronic unit, and a cooling device configured to cool at least one of the drive unit and the electronic unit. The hand power tool also includes at least one of an open-loop control unit and a closed-loop control unit configured to control the cooling device.
    Type: Application
    Filed: February 12, 2014
    Publication date: August 28, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Manfred Schuele, Helmut Wanek, Cornelius Boeck, Joachim Schadow, Joerg Maute, Florian Esenwein, Manfred Lutz, Daniel Barth
  • Publication number: 20140235145
    Abstract: A hand power tool, in particular an angle grinder, includes a drive unit and an electronic unit. The hand power tool further includes an after-run cooling unit configured, at least partially, to cool the drive unit and/or the electronic unit substantially after an operating state of at least the drive unit.
    Type: Application
    Filed: February 18, 2014
    Publication date: August 21, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Manfred Schuele, Helmut Wanek, Cornelius Boeck, Joachim Schadow, Joerg Maute, Florian Esenwein, Manfred Lutz, Daniel Barth
  • Publication number: 20140206265
    Abstract: A power tool braking device of a portable power tool includes at least one braking unit that is configured to brake a spindle of the portable power tool and/or a machining tool in at least one braking position of the braking unit. The power tool braking device further includes at least one spindle fixing unit that is configured to fix the spindle in at least one fixing position of the spindle fixing unit. The braking unit and the spindle fixing unit are at least partially configured as a single piece.
    Type: Application
    Filed: January 20, 2014
    Publication date: July 24, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Joerg Maute, Florian Esenwein
  • Publication number: 20140206264
    Abstract: A machine tool brake device of a portable machine tool includes at least one magnetic-field-type brake unit that is configured to brake a spindle and/or a machining tool when the magnetic-field-type brake unit is in at least one braking position. The machine tool brake device further includes at least one spindle immobilization unit that is configured to immobilize the spindle when the spindle immobilization unit is in at least one immobilization position. The machine tool brake device also includes at least one activation unit that is configured to transfer the magnetic-field-type brake unit into the braking position and to enable an automatic transfer of the spindle immobilization unit into the immobilization position.
    Type: Application
    Filed: January 20, 2014
    Publication date: July 24, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Joerg Maute, Florian Esenwein
  • Patent number: 8784163
    Abstract: Sanding apparatus comprises a rigid non-expanding cylindrical sanding drum (1) formed with splines on its outer surface (4) and a separate cylindrical cover (2) formed of elastomeric material fitted removably onto the drum and formed with splines on its inner surface (8) adapted to engage with the outer surface of the drum so as to be driven in rotation therewith. An abrasive tube (3) fits over the cover (2) and is gripped by the cover which expands radially when the apparatus is in operation.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: July 22, 2014
    Assignee: Hire Technicians Group Ltd.
    Inventor: Mark Graham Rogers
  • Patent number: 8764516
    Abstract: A hand held machine for grinding and like operations, includes a housing, a motor mounted in the housing and which rotates an axle connected to a tool carrying mechanism, and a front bearing arrangement provided between the housing and the axle, including a front bearing, and a vibration insulator which is resilient to radial displacement of the axle. The vibration insulator includes at least one resilient element located between the housing and the front bearing. The machine further includes an adjustment mechanism interacting with the at least one resilient element for adjustment of the resilience of the resilient element.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: July 1, 2014
    Assignee: Atlas Copco Industrial Technique Aktiebolag
    Inventor: Anders Urban Nelson
  • Publication number: 20140141702
    Abstract: The present invention is a sharpening tool and sharpening system for sharpening snowmobile carbide wear rails and studs and a kit of parts that includes the sharpening tool and a steering member having a carbide wear rail. The sharpening tool is attachable to the chuck of a hand held drill and includes a shaft attachable to the chuck of the hand held drill and cylindrical head affixed to the shaft. The cylindrical head includes a rail groove surfaced in an abrasive material for sharpening wear rails.
    Type: Application
    Filed: November 20, 2012
    Publication date: May 22, 2014
    Inventor: Glenn S. Welch
  • Patent number: 8721400
    Abstract: A sanding or grinding tool has a drum provided with an abrasive cylindrical outer wall. The depth guide has a curved outer surface composed of a number of arcuate segments each having a radius which extends outward from the centre of the guide and which is of a differing defined length. The depth guide is rotatable in increments to cause each segment, in turn, to face the work piece. Each facing segment functions to define the depth of material removed from the surface of the work piece.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: May 13, 2014
    Inventor: James-Roy Ouellette
  • Patent number: 8708062
    Abstract: The invention relates to a machine tool having a two-part housing. The housing parts of the machine tool are connected by a connection device that has at least two connection projections. According to the invention, the connection projections in one housing part are arranged adjacent to each other and engage in corresponding connection recesses, in a positive fit, arranged in the other housing part.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: April 29, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Justus Lamprecht
  • Patent number: 8708253
    Abstract: The invention relates to a hand application device (1) having improved handling capability, in that its individual elements (2, 7, 12) are rotatable and adjustable to one another around four rotational axes (8, 10, 13, 28).
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: April 29, 2014
    Assignee: Robatech AG
    Inventor: Thomas Hilfiker
  • Patent number: 8702478
    Abstract: A universal dust shroud includes a unitary mounting bracket on top of the shroud body. The bracket includes a plurality of collar sections attached to the body via a ‘Z’ shaped joint which allows the collar sections to move radially inwardly and outwardly relative to each other to accommodate different angle grinders. The bracket may include slots formed at the base of the bracket. The slots allow air to flow in through the slots, out past the grinding disk, and to the vacuum port. As such, the slots can aid in cooling the grinder output and bearings, and helps keep dust and debris away from the bearings in order to extend the life of the grinder.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: April 22, 2014
    Inventors: Michael Loveless, Spencer Loveless
  • Patent number: 8662964
    Abstract: A protective hood of portable electric power tools, and a portable electric power tool is described, and wherein a protective hood is provided and which can be selectively located relative to a rotating drive shaft, and wherein a clamping band is provided which mounts a screw that can be radially threadably advanced toward the rotating drive shaft and which further carries an anti-rotation locking element having claws which mechanically engage a machine neck thereby reliably and securely fastening the protective hood to the power tool.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: March 4, 2014
    Assignee: Metabowerke GmbH
    Inventor: Matthias Hiller
  • Publication number: 20140017979
    Abstract: Exemplary embodiments of the subject invention comprise methods and apparatus concerning balanced abrading of a tire surface by an abrading tool. Such an abrading tool may comprise a pair of counter-rotating, driven abrading members, each of the abrading members having a rotational axis generally extending laterally across the tool, the abrading members being spaced apart in a lateral direction of the tool by a desired distance, each of the abrading members having an abrading surface defined by at least one outer diameter, the abrading surface extending axially relative to the rotational axis of the abrading member, wherein each of the abrading has a shaft upon which each abrading member is arranged, each of the shafts being adapted to be driven by a driving source. The tool further includes a body to which each shaft and abrading member is attached.
    Type: Application
    Filed: March 31, 2011
    Publication date: January 16, 2014
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Metodi L. Ikonomov, Cesar E. Zarak, Adib T. Chebli
  • Patent number: 8628380
    Abstract: The present invention is an original direct motor-drive portable angle grinder with a disc type motor installed in a position adjacent to the grinding wheel and an outer motor rotating part coaxially and directly driving the grinding wheel. By means of the direct drive, the present invention prevents the emission of noise made by angle type transmission devices. Moreover, an inertial body is installed on the rotating housing that is integrated with the rotating part to form a flywheel or the rotating housing and the inertial body are integrated into a single reinforced structure to enable a flywheel function in order to improve the grinding, polishing and machining or cutting abilities of the grinding wheel.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: January 14, 2014
    Inventor: Tai-Her Yang
  • Patent number: 8616190
    Abstract: A cutter for cutting a workpiece while using a water includes a housing, an electric motor disposed in the housing, a rotation shaft, a base, and a splashboard. The rotation shaft is supported by the housing for rotatably supporting an end tool driven by the electric motor. The base supports the housing, and has a top surface and a bottom surface to be in contact with the workpiece. The end tool has a part protrudable from the bottom surface. The splashboard section is positioned on the top surface and behind the end tool in a cutting direction. The splashboard section protrudes in a direction away from the top surface and extends in a direction substantially parallel to an axial direction of the rotation shaft.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: December 31, 2013
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Naoki Tadokoro, Toshihiko Tachibana
  • Patent number: 8613642
    Abstract: Various systems, tools, and methods are described for rendering regions of coated pipe suitable for receiving press fittings. The systems, tools, and methods may also be applicable for transforming regions of pipe, coated or uncoated, and which are otherwise unsuitable for sealingly engaging press fittings, so that reliable and leak-proof seals can be made between the pipe and press fittings.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: December 24, 2013
    Assignee: Emerson Electric Co.
    Inventors: Richard R. Bowles, Paul W. Gress, Brian A. Mitchell, Robert M. Baracskai
  • Patent number: 8579562
    Abstract: A tool holder (10) for a tool which can rotate about an axis of rotation (D) comprises a clamping shank (18) which, in an end shank region, has a clamping formation (14) with an accommodating opening (16) which is central in relation to the axis of rotation (D) and is intended for accommodating a retaining shank of the tool, there being provided, on the lateral circumference of the accommodating opening (16), at least one clamping surface for securing the retaining shank of the tool with press-fit action. According to the invention, on an axial section which forms an axial bracing section (VA), the tool holder (10) has a bracing arrangement (20) which, at least during operation of the tool holder (10), subjects the tool holder (10) to a bracing force (Vk) with a bracing force component (Vk) acting in the axial direction.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: November 12, 2013
    Assignee: Franz Haimer Maschinenbau KG
    Inventors: Franz Haimer, Josef Haimer, Hermann Kopp
  • Patent number: 8517799
    Abstract: An apparatus includes a surface preparation device for moving a backing pad in a random orbital motion, a first ball joint connected to the device, a second ball joint connected to the first ball joint; and a robotic end effector, connected to the second ball joint, for pressing the device against a surface.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: August 27, 2013
    Assignee: The Boeing Company
    Inventors: Reynold Rullan Panergo, James C. Vanavery
  • Publication number: 20130205604
    Abstract: A shaft bearing device for a hand-held power tool, in particular for an angle grinder and/or a circular saw, includes at least one first support unit and at least one second support unit which are intended to axially and/or radially support a bearing element of a shaft. At least one of the at least two support units is formed at least partially by a plate element that has at least one axial and/or radial bend.
    Type: Application
    Filed: June 6, 2011
    Publication date: August 15, 2013
    Applicant: Robert Bosch GmbH
    Inventors: Florian Esenwein, Thomas Schomisch
  • Patent number: 8491356
    Abstract: A motorized knife sharpener and related methods of sharpening knives, wherein the knife sharpener is capable of sharpening knives of varying types and styles. The motorized knife sharpener includes a housing, motorized grinding assembly and an adjustable blade guide assembly. The adjustable blade guide assembly includes a selector switch accessible to a user on a front portion of the housing. With the selector switch, the user is able to selectively adjust a presentation angle defined by a blade guide relative to a grinding wheel. The selector switch is operably coupled to the blade guide with a cam assembly that pivots the blade guide with respect to the grinding wheel so as to vary the blade presentation angle.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: July 23, 2013
    Assignee: National Presto Industries, Inc.
    Inventor: Shane R. Walker
  • Patent number: 8480457
    Abstract: A hand-held surface preparation apparatus comprising a frame, a hollow semi-circular shaped housing member connected to said frame, a drive housing connected to said housing member, a motor secured to said drive housing aligned directly over said hollow semi-circular shaped housing member, a roller rotatably positioned inside of the semi-circular shaped housing member in communication with said motor, front and rear guide handles extending from said frame, and removably connected front and rear debris guards.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: July 9, 2013
    Inventor: Robert Kundel, Jr.
  • Patent number: 8388415
    Abstract: A power cutter comprising: a housing 2; an engine 24 mounted within the housing 2; a support arm 7 mounted on the housing and which projects forward of the housing; a blade mounting mechanism 70,90, 86, 92 rotatably mounted on the end of the support arm and which is capable of being rotationally driven by the engine 24 when the engine is running; a liquid fuel aeration mechanism 126 to generate aerated fuel for the engine; an air intake 314 for the provision of air for the liquid fuel aeration device 126; an air filtration mechanism 316 to filter the air drawn in from the air intake for the liquid fuel aeration mechanism; a fuel tank 124 for providing fuel to the liquid fuel aeration mechanism; and an exhaust 146 through which the exhaust gases generated by the operation of the engine are expelled; wherein the air filtration mechanism comprises an air filter 320 comprising a plurality of pleats which hang substantially vertically downwardly when the power cutter is in its standard orientation.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: March 5, 2013
    Assignee: Black & Decker Inc.
    Inventors: Martin Soika, Stefan Sell, Horst Grossman
  • Patent number: 8388417
    Abstract: An angle grinder is provided including a radial fan assembly. The radial fan assembly is configured to direct exhaust radially outwardly and axially away from a user of the angle grinder. Brush card assemblies for an angle grinder are also provided. The brush card assemblies provide for the securing of brush cards to a field case of the angle grinder by the interface between the field case and brush cards. Additionally, a spindle lock mechanism and a safety mechanism for an angle grinder are provided.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: March 5, 2013
    Assignee: Black & Decker Inc.
    Inventors: Paul K. Trautner, Philip T. Miller, Kevin S. Agan, Erik Ekstrom, Junyi Xie, Yaping Yang, Jason R. Melvin, Gregg L. Sheddy
  • Patent number: 8388418
    Abstract: An elongated liquid polish dispenser is described that can be secured to and released from a bracket that stays on a hand-held rotary buffer such that a switch on the polisher is in a convenient position for an operator to press while gripping the polisher. A portion of the dispenser can be inserted through a hole in the bracket, and the entire dispenser can be rotated so that tabs securely attach the dispenser to the bracket and tool. The switch activates an electric pump which pumps liquid polish through a nozzle and onto a work surface.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: March 5, 2013
    Inventor: Robert Steven Greer
  • Patent number: 8353278
    Abstract: A rotary stone cutting tool and method for making countertops and the like includes a shank shaped for detachable connection with a rotary drive. A cup-shaped cutting blade is mounted on the outer end of the shank, and has a frusto-conical sidewall and an outer marginal edge with axially protruding cutting teeth. A plurality of cutting pads are embedded in the sidewall and protrude radially outwardly therefrom. The blade is advanced through a stone slab with the sidewall oriented generally perpendicular to the face of the stone slab to cut an arcuate portion of an inside corner with reduced waste.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: January 15, 2013
    Assignee: C.M.S.-North America, Inc.
    Inventor: Jonathan A. Plaskett
  • Patent number: 8317575
    Abstract: An implement for cleaning mineral ring build up in a toilet bowl. The inventive device is an attachment driven by a cordless drill. It consists of a ball covered with a non abrasive material attached to a shaft which rotates the ball to remove mineral ring build up on toilet bowls.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: November 27, 2012
    Inventor: Charles Neil Carr
  • Patent number: 8272925
    Abstract: Described herein is technology for, among other things, a multi-purpose sanding or filing apparatus. The apparatus includes a motor, a plurality of drive mechanisms in mechanical communication with the motor, and a plurality of drums, where each of the drums has an axis passing therethrough, the drums are coupled with respective drive mechanisms, and the drive mechanisms are operable to rotate the drums about their respective axes.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: September 25, 2012
    Inventors: Mark Good, Dan Swanson, Wayne Bower