Portable Abrader Patents (Class 451/344)
  • Publication number: 20140273770
    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: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Inventor: Thomas Richard McHugh
  • Publication number: 20140273771
    Abstract: A handheld power tool and a removable accessory, which is changeable without requiring extra tools, include various elements. For example, the handheld power tool includes a platen having an aperture therein and a locking mechanism coupled with the platen. The locking mechanism includes a cam member. The removable accessory includes a tab that fits into the aperture and that is engagable by the cam member to bias the removable accessory into abutting contact with the platen to securely couple the removable accessory with the tool.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Applicant: BLACK & DECKER, INC.
    Inventors: Brent A. Kuehne, Oleksly P. Sergyeyenko
  • Publication number: 20140273759
    Abstract: A scraper and sandblaster assembly is presented including a sandblaster having at least a debris collection cover and a granular particle container for holding granular particles and a scraper configured to operate with the sandblaster, wherein the granular particle container includes a plurality of separate and distinct chambers, each chamber including a different granular particle. The sandblaster includes at least one actuation mechanism for selectively or collectively dispensing the different granular particles.
    Type: Application
    Filed: June 2, 2014
    Publication date: September 18, 2014
    Inventors: Theodosios Kountotsis, Agjah Libohova
  • Publication number: 20140273754
    Abstract: A surface machining mechanism modifies a repair segment of a body having a contoured surface. The surface machining mechanism includes a frame assembly and one or more guide members for supporting the frame assembly on the contoured surface. The guide members mate with the contoured surface and are movable along the contoured surface to guide the frame assembly. A machining apparatus is supported by the frame assembly. The machining apparatus engages the repair segment of the body as the machining apparatus is moved along the contoured surface. A method of modifying a repair segment of a body having a contoured surface with the surface machining mechanism is also provided.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: General Electric Company
    Inventors: Mark Carmine Bellino, Matthew Paul Berkebile, Eunice Delia Reyes
  • Patent number: 8834235
    Abstract: A flexible sanding apparatus includes a thin, relatively flat spring member and one or more coil spring members coupled to a first side of the flat spring member along a length of the flat spring member. A sanding surface may be coupled to a second side of the flat spring member. The flat spring member and the coil spring members may be elongated members coupled together lengthwise. The coil spring member may be a closed coil spring member that allows concave flexing of the sanding surface and inhibits convex flexing of the sanding surface.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: September 16, 2014
    Inventor: Thomas E. Foster
  • Publication number: 20140227948
    Abstract: A power tool that includes a tool body housing, a drive system, a tool head and a connection system. The drive system is housed in the tool body housing. The tool head, which is configured to perform work on a work piece, includes a tool head housing and an input member that is driven by the drive system when the tool head is coupled to the tool body housing. The tool head can be engaged to the tool body housing in at least two pre-defined and distinct orientations. The connection system secures the tool head to the tool body housing in each of the at least two pre-defined and distinct orientations.
    Type: Application
    Filed: April 16, 2014
    Publication date: August 14, 2014
    Applicant: BLACK & DECKER INC.
    Inventors: Wade C. KING, Micah A. COLEMAN, Andrew WALKER, Jason McRoberts, Frederick R. BEAN, Christopher J. MURRAY, Frank A. DeSantis
  • Publication number: 20140220870
    Abstract: The present disclosure describes a sanding device that has a motor coupled to a base plate for inducing vibration in the base plate. Further, the sanding device has a face plate that is coupled to the base plate, and the face plate has a plurality of sleeves for receiving a respective plurality of columns. The columns rotate and move longitudinally within the sleeves. Further, each column moves independent of the other columns and each column have an abrasive surface on a sanding end for contacting a sanding surface.
    Type: Application
    Filed: February 4, 2014
    Publication date: August 7, 2014
    Applicant: Silhouette Sander, LLC
    Inventor: Roland Bruyns
  • Patent number: 8790163
    Abstract: A multi-purpose machine for wall processing includes a base, a working member and a sliding device that drives the working member slide up and down relative to the base. The base includes a bottom board with moving wheels therebelow, a top board, and several parallel upright posts therebetween. The working member includes a cover and a roller set inside the cover. A built-in motor is set inside the roller. Wall processing tools are releasably fixed on the outside of the roller. A feeding hole is provided on the upper part of the cover and connected with a supply system or an absorbing system. The multi-purpose machine may perform operations including putty scraping, grinding and polishing, painting, cleaning and wall paper removing on the wall to replace human labor, thus realizing multiple purposes, reducing the labor strength, and improving the working efficiency.
    Type: Grant
    Filed: April 17, 2010
    Date of Patent: July 29, 2014
    Assignee: Ganxing Ke
    Inventor: Ganxing Ke
  • Patent number: 8784161
    Abstract: The mandrel assemblies include a double face box mandrel assembly with box refacing tube, male mandrel adapter for engaging within a bore of the box refacing tube, a box mandrel assembly floating over the male mandrel adapter and connected to a drill pipe connection. A box facing mandrel adapter connects to the male mandrel adapter, an outer face plate mounts over the box mandrel assembly engaging the box refacing tube; an inner face plate mounts over the box facing mandrel adapter shaft and attaches to a flange. A double face pin mandrel assembly with pin refacing tube, male mandrel adapter, and pin facing mandrel adapter engages a male mandrel adapter, a pin mandrel assembly floats over the male mandrel adapter and pin facing mandrel adapter and connects to a drill pipe connection opposite the double face box mandrel assembly.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: July 22, 2014
    Assignee: Tubular Inspection Products, Inc.
    Inventors: Jimmy F. Burleson, Gary Chambers
  • Patent number: 8777698
    Abstract: An abrading tool has a grinding disc mounted to the shaft of a motor, and a dust shroud which has a depending flange which extends over and about a periphery of the grinding disc, the dust shroud having a flattened segment, and a peripheral flexible and adjustable skirt which attaches to and extends beyond the depending flange.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: July 15, 2014
    Assignee: Advanced Posture Systems Pty. Ltd.
    Inventor: Peter O'Shannessy
  • Patent number: 8758095
    Abstract: The present invention relates to an abrading or polishing tool with an improved motor chamber, and more particularly to a tool with a motor chamber having a sleeve or liner lining the inside surface of the motor chamber. In one embodiment, an abrading or polishing tool includes a body defining an internal motor chamber with an inner surface, a liner lining the inner surface of the motor chamber, a rotor contained within the motor chamber for rotation against the liner, and an abrading or polishing head coupled to the rotor for rotation.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: June 24, 2014
    Assignee: Hutchins Manufacturing Company
    Inventors: Donald H. Hutchins, Alme Hutchins, Paul D. Maldini
  • Patent number: 8727838
    Abstract: A sander has two abrasive-supporting base parts mounted to an oscillating drive mechanism. The base parts may support a sandpaper sheet, or the like, and are connected to one another in a manner allowing ready reconfiguration for different applications. One of the base parts is connected by a pivoting coupling to the other for movement between extended and retracted positions. Latching means releasably lock the coupling so as to hold the parts in the extended position.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: May 20, 2014
    Assignee: Techtronic Power Tools Technology Limited
    Inventors: Hei Shun Leung, Kwok Ting Mok
  • Patent number: 8696413
    Abstract: A contouring sanding device includes a support plate, a sanding pad covered by an abrasive material (e.g. sand paper), and a pressure dispersal system allowing the sanding pad to automatically conform to the contours of the surface of the object being sanded. The sanding device also includes either a handle or a power tool attachment piece.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: April 15, 2014
    Assignee: ShelWes, LLC
    Inventors: John Wesley King, Jr., Shelley K. Haynes
  • Publication number: 20140094100
    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: Application
    Filed: December 6, 2013
    Publication date: April 3, 2014
    Inventor: Tai-Her YANG
  • Patent number: 8678884
    Abstract: The portable abrasive tool comprises a flat motor composed of a rotor having a coil disk in the form of a disk on which multiple coil pieces are arranged in the circumferential direction about the output shaft when seen in the direction of the axis line of the output shaft and a stator having magnets arranged in the manner that the magnetic flux passes through the coil disk in the direction of the axis line of the output shaft, and an abrasive part connected to one end of the output shaft of the flat motor.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: March 25, 2014
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Hideyuki Tanimoto, Takuya Konnai, Kouji Sagawa
  • Publication number: 20140080387
    Abstract: An electric hand power-tool appliance is described and which includes a spindle, a tool mounted on the spindle, a supporting element mounted on the spindle and which is movable along the spindle on a path L, and against a force F, and in the direction of the electric hand power-tool appliance, and which increases the safety of the electric hand power-tool appliance.
    Type: Application
    Filed: March 22, 2012
    Publication date: March 20, 2014
    Applicant: METABOWERKE GmbH
    Inventor: Ludwig Kuether
  • Publication number: 20140080388
    Abstract: A machine tool switching device, in particular for portable machine tools, includes at least one switching unit that has at least one movably mounted operating element for actuating a mechanical, electrical, and/or electronic switching element. The machine tool switching device further includes at least one blocking device for blocking at least one movement of the operating element. The blocking device includes at least one movably mounted release element provided to lift the blockage of the operating element. The release element is mounted on the operating element so as to be movable in a translatory manner.
    Type: Application
    Filed: March 15, 2012
    Publication date: March 20, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Manfred Lutz, Achim Trick, Thomas Schomisch, Florian Esenwein
  • Patent number: 8662965
    Abstract: A counter-rotating polisher includes: an enclosure, an electric motor, a polishing arrangement and a counter-rotating arrangement. The electric motor is fixed to the enclosure and includes a driving axle. The polishing arrangement includes two polishing device. The polishing devices respectively include a fixed tray and a polishing material that are fixedly connected to an outside of the fixed tray. The fixed tray is perpendicular to the driving axle. The counter-rotating arrangement includes a first driving wheel, a second driving wheel and a change-direction wheel. The first driving wheel is connected to the driving axle and driven by the driving axle. The second driving wheel is fixedly connected to the second fixed tray. The change-direction wheel is connected to the first driving wheel and the second driving wheel. The driving axle rotates the first polishing material positively. The change-direction wheel reversely transmits the rotation to the second driving wheel.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: March 4, 2014
    Assignee: Hammer Electric Power Tools Co., Ltd.
    Inventors: Jianchu Huang, Kewei Wang, Kunyuan Chu, Xiaoping Xu, Ligang Zhu
  • 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
  • Patent number: 8651921
    Abstract: A surface treatment device includes an enclosure which has an opening through which the leading edge of an aerofoil passes. A sealing element is provided on the enclosure to seal the device to the surfaces of the aerofoil. An abrasive is located within the enclosure and two fluid openings are also provided through which a chemical accelerant can be pumped. In operation the enclosure is oscillated relative to the component so that material is abraded. Whilst the enclosure is oscillated a chemical accelerant is simultaneously pumped through it. The device allows for the local application of a surface treatment on a component.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: February 18, 2014
    Assignee: Rolls-Royce PLC
    Inventors: Daniel Clark, Stephen John Tuppen
  • Publication number: 20140038499
    Abstract: The present invention particularly relates to a hand-held sanding machine with an outer housing (1), a tool shaft (2) and a brushless electric drive motor. In the present invention, the rotor of the drive motor is fastened to the tool shaft (2) of the sanding machine, and the stator (6) is positioned in the outer housing (1). The present invention also relates to a control method for an electric sanding machine.
    Type: Application
    Filed: August 1, 2013
    Publication date: February 6, 2014
    Inventor: Caj Nordstrom
  • Publication number: 20140024301
    Abstract: A power tool that includes a tool body housing, a drive system, a tool head and a connection system. The drive system is housed in the tool body housing. The tool head, which is configured to perform work on a work piece, includes a tool head housing and an input member that is driven by the drive system when the tool head is coupled to the tool body housing. The tool head can be engaged to the tool body housing in at least two pre-defined and distinct orientations. The connection system secures the tool head to the tool body housing in each of the at least two pre-defined and distinct orientations.
    Type: Application
    Filed: September 26, 2013
    Publication date: January 23, 2014
    Applicant: Black & Decker Inc.
    Inventors: Wade C. King, Micah A. Coleman, Andrew Walker, Jason McRoberts, Frederick R. Bean, Christopher J. Murray, Frank A. DeSantis
  • Patent number: 8628379
    Abstract: A dust collection assembly for a manual sander, having a bag with an open upper end and a lower end terminating in an aperture, and a rigid frame supporting the open upper end of the bag. The rigid frame includes a periphery to which the open upper end of the bag is attached, and a pair of opposing engagement portions extending from the periphery towards a center of the open upper end of the bag. The manual sander includes a sanding element and a pole rotatably mounted thereto. The pole extends through the bag's aperture, and each of the engagement portions is removably connected to mounting bolts on the sanding element such that the sanding element is rigidly held at the open upper end of the bag so that the bag collects dust and debris created by the sanding element during use.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: January 14, 2014
    Inventor: Luis A. Galindo
  • Patent number: 8616939
    Abstract: The present invention refers to a constructive disposal in hand sander, more specifically, a hand sander with refill system for exchange of sandpaper sheet suitable for finishing operations and removal of excess material, for thinning of wall surfaces, wood, metal, etc.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: December 31, 2013
    Inventor: Roberto Kazuo Toyama
  • Publication number: 20130331009
    Abstract: A contouring sanding device includes a support plate, a sanding pad covered by an abrasive material (e.g. sand paper), and a pressure dispersal system allowing the sanding pad to automatically conform to the contours of the surface of the object being sanded. The sanding device also includes either a handle or a power tool attachment piece.
    Type: Application
    Filed: August 16, 2013
    Publication date: December 12, 2013
    Inventors: John Wesley King, Jr., Shelley K. Haynes
  • Patent number: 8596427
    Abstract: An output shaft of a motor is divided into a front shaft (first or second front shaft) and a rear shaft. The first front shaft is to be rotatably supported by a first shaft support plate connected directly to a motor housing. The second front shaft is to be rotatably supported by a second shaft support plate connected to the motor housing with a spacer provided between the second shaft support plate and the motor housing. A braking mechanism including a flange plate, a braking member and a biasing member is mounted to the second shaft support plate and the second front shaft. The first front shaft is used with the first shaft support plate to realize a power tool without the braking mechanism. The second front shaft is used with the second shaft support plate and the spacer to realize a power tool without the braking mechanism.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: December 3, 2013
    Assignee: Makita Corporation
    Inventor: Fumitoshi Numata
  • Publication number: 20130316626
    Abstract: Hand-held power tools with an external composite sleeve having a forward portion and a rearward portion and defining an axially extending cavity. The power tools also include an internal metal housing having a substantially cylindrical body with a plurality of circumferentially spaced apart, longitudinally-extending front posts that project radially outward from the cylindrical body. The metal housing resides in the composite sleeve. The front posts can be closely spaced to or abut an inner surface of the forward end (e.g., front cap) of the sleeve. In a front exhaust configuration, the front posts and sleeve cooperate to define a plurality of circumferentially spaced apart gap spaces, a respective gap space bounded by adjacent posts, an outer surface of the cylindrical body and the inner surface of the sleeve.
    Type: Application
    Filed: March 13, 2013
    Publication date: November 28, 2013
    Inventors: Jefferey Clifford Yaschur, Randi Jane Young, Douglas Eliot Pyles
  • Publication number: 20130309948
    Abstract: A sponge sander configured for selective attachment to a dust-collection system includes a housing having a housing-interior surface defining a sponge cavity and a sponge seat configured for removably retaining a determinately-dimensioned sanding sponge. The sponge has an abrasive sanding surface, a back surface opposite the sanding surface and a sponge periphery defined between the sanding and back surfaces. The sponge is retained within the sponge cavity such that (i) the abrasive sanding surface can engage a work surface to be sanded, (ii) fluid-flow channels are maintained between the sanding sponge and the housing-interior surface and (iii) the spaces are in fluid communication with a fluid port defined in the housing so that when a negative pressure is applied across the fluid port by a vacuum system external to the housing, dust created by sanding is drawn into the fluid-flow channels and out of the housing through the fluid port.
    Type: Application
    Filed: April 19, 2013
    Publication date: November 21, 2013
    Inventors: Corey Talbot, Richard M. Farland, Romeo Arvinte
  • Patent number: 8574037
    Abstract: An apparatus adapted to be coupled to a power source having a rotary drive shaft is provided. The apparatus comprises an adapter, an extension pole, and a tool head. The adapter has a drive shaft and a fluid passage. A first end of the adapter drive shaft is adapted to be coupled to the power source drive shaft. The adapter fluid passage is adapted to receive fluid flowing from a source of fluid and to permit flow of fluid there through. The extension pole has a drive shaft and a fluid passage. A first end of the extension pole drive shaft is adapted to be coupled to a second end of the adapter drive shaft. The extension pole fluid passage is adapted to receive fluid flowing from the adapter and to permit flow of fluid there through. The tool head is adapted to be coupled to the extension pole.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: November 5, 2013
    Inventor: David W. Kresge
  • Patent number: 8568204
    Abstract: A material removing tool, such as a cutting or grinding tool, adapted to be oscillated by the output shaft of a manually operable motor-driven apparatus, is provided with at least one elongated cutting edge defined by teeth or analogous cutting elements arranged in at least one at least substantially straight linear array.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: October 29, 2013
    Assignees: maRoc GmbH, C. & E. Fein GmbH
    Inventors: Marco Steiger, David Suter
  • Publication number: 20130252517
    Abstract: A portable and transportable die cavity modifying machine having a base carrying a carriage adjustable along one axis, e.g., a generally horizontal axis, and a machining head adjustable along another axis, e.g., a generally vertical axis, for modifying a die cavity of a stamping die in a manner that prevents blank or slug pulling during stamping press operation. The machine includes a grinder that can be pneumatically powered having a grinding bit used to precisely machine a slug retention groove in a die cavity defining surface (sidewall) of a die cavity formed in a stamping die. The machine has an angularly adjustable head carrying the grinder enabling adjustment of the angle of the groove relative to die cavity defining surface enabling the groove to be angled relative to the direction of a punch entering the die cavity during stamping.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 26, 2013
    Applicant: DTC Products
    Inventors: Jeffrey A. DeCore, Robert B. DeCore
  • Patent number: 8529317
    Abstract: A speed control device is provided for a pneumatic power tool which includes a housing with a pressure air inlet, an output spindle, and an air turbine with a turbine wheel drivingly connected to the output spindle. Nozzles are arranged for directing motive air onto the turbine wheel. The speed control device includes a valve unit for controlling pressure air flow through the nozzles in response to a speed responsive parameter. The plurality of nozzles are divided into n separate nozzle groups having individual air feed through individual air feed passages (n is an integer, n>1). The valve unit is capable of being actuated into n states for controlling air feed to the n nozzle groups, whereby for each subsequent state, x (1?x?n, x is an integer) air feed passages are connected to the pressure air inlet such that nozzle groups 1 to x are fed with air.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: September 10, 2013
    Assignee: Atlas Copco Industrial Technique Aktiebolag
    Inventor: Anders Urban Nelson
  • Patent number: 8512104
    Abstract: A protective guard is provided for a hand-held power tool, in particular a hand-guided grinding machine. According to the invention, the tool is at least partially covered by the protective guard. The guard is supported in an elastically flexible fashion in the circumference direction of the bearing journal by means of a spring means that prestress locking elements of a locking mechanism in their engaged positions.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: August 20, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Attila Nagy
  • Publication number: 20130196571
    Abstract: A tool for moving an abrasive media can include a tool body and a drive system housed in the tool body. The drive system can include an output member. A retaining member can be disposed on the tool body. A first platen having a first attachment hub can be selectively coupled with the retaining member in an installed position. The first platen can have a first rotatable member that selectively attaches to the output member in a first mode of operation. A second platen having a second attachment hub can selectively couple with the retaining member in an installed position. The second platen can have a second rotatable member that selectively attaches to the output member in a second mode of operation.
    Type: Application
    Filed: March 14, 2013
    Publication date: August 1, 2013
    Applicant: BLACK & DECKER INC.
    Inventor: Black & Decker Inc.
  • Patent number: 8480453
    Abstract: A die grinder including a body having a longitudinal axis, and a grinding head portion with an output shaft capable of powered rotation. A motor is disposed in the body for rotating the output member. A locking interconnect portion attaches the grinding head portion to the body and is adapted to permit selective rotation of the grinding head portion relative to the body about the longitudinal axis of the body. Thus, the grinding head can be positioned at different selected angles relative to the body.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: July 9, 2013
    Assignee: SP Air Kabushiki Kaisha
    Inventor: Shigeki Kobayashi
  • Publication number: 20130165027
    Abstract: A sander includes an upper portion configured as a holding portion, and side peripheral portions. At least one constriction is formed in the side peripheral portions in such a manner as to be sunk into the side peripheral portions. The constriction is configured to be dent with respect to the holding portion.
    Type: Application
    Filed: December 18, 2012
    Publication date: June 27, 2013
    Applicant: Makita Corporation
    Inventor: Makita Corporation
  • Patent number: 8469775
    Abstract: The disclosure is directed to conversion assemblages adapted for use in converting a surface modifying apparatus, such as a pole sander, whereby the conversion assemblage includes a generally rigid body assembly including first and second major surfaces opposing each other, the first major surface is adapted for receiving the supporting member, and the second major surface is attachable to a surface modifying member.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: June 25, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: David R. Dow, Allen J. Rivard, John G. Petersen, Galen A. Fitzel
  • Patent number: 8454412
    Abstract: The invention is based on a handheld power tool, in particular a right-angle sander (10), having a gearbox (12), a flange neck (14) with a guard device (20), which device is receivable on the flange neck (14) and forms a receptacle region for a tool (18) and is rotatable in the circumferential direction (22), and having at least one detent device (24) for locking a rotary position of the guard device (20). It is proposed that the detent device (24) is at least partially integrated with the flange neck (14) of the gearbox (12).
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: June 4, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Florian Esenwein
  • Patent number: 8454411
    Abstract: A hand-held power tool system has a hand-held power tool, a guard unit, and a guard anti-rotation lock unit configured to prevent rotation between the guard unit and the hand-held power tool in a case where a tool of the hand-held power tool breaks during intended operation. The guard anti-rotation lock unit also is configured to prevent rotation between the guard unit and the hand-held power tool at a same time as the guard unit is attached to the hand-held power unit, when the guard unit is in a working position. Preferably, the guard anti-rotation lock unit is at least partially located on a closing unit which includes a clamping band and a pivotable lever. The anti-rotation lock unit preferably includes an anti-rotation lock element provided on the lever.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: June 4, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Cornelius Boeck, Joachim Schadow, Sinisa Andrasic
  • Patent number: 8435097
    Abstract: A reduced height quarter sheet sander has a housing having first and second halves mated together. An upper portion of the housing provides a handle. A pair of brush boxes is disposed in the housing on opposite sides of a commutator of an electric motor disposed in the housing. In an aspect, a switch disposed in the handle of the housing and a terminal block (at which a cordset that enters the housing terminates) disposed in the handle of the housing have generally the same horizontal elevation as the brush boxes (when the sander is lying upright). In an aspect, the stator is disposed in the housing so that the field coils extend across the housing from one half to the other half and outside the lower screw bosses.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: May 7, 2013
    Assignee: Black & Decker Inc.
    Inventors: Jason McRoberts, Terry L. Turner, Jennifer A. Resh, Timothy W. French, Jr.
  • Patent number: 8408974
    Abstract: An abrasive disc assembly for a tool having an externally threaded, motor-driven spindle. The assembly includes an abrasive disc having a central bore formed therethrough and a male portion having an internally-threaded hub portion and a flange portion. The outer dimension of the hub portion is sized to be received within the central bore and the internally-threaded hub portion is enmeshingly engagable with the externally threaded, motor-driven spindle. The assembly further comprises an articulating locking finger extending from the male portion and having a retaining surface. The articulating locking finger is deflectable between a locked position and a deflected position. Finally, the assembly includes a female portion having a central cavity and an engagement surface.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: April 2, 2013
    Assignee: Black & Decker Inc.
    Inventors: Donald W. Farber, Brad Nohr, David C. Jones, Mark E. Brunson
  • Patent number: 8408975
    Abstract: A belt sander is disclosed that may include a sanding assembly having a first roller and a second roller, the sanding assembly being configured to receive a sanding belt around the first roller and the second roller to define a sanding surface therebetweeen. The belt sander may include a motor operationally coupled to the sanding assembly and opposite the sanding surface, the motor being configured to rotate at least the first roller and thereby rotate the sanding belt around the first roller and the second roller, as well as a handgrip formed around at least a portion of the motor and substantially encasing the motor.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: April 2, 2013
    Assignee: Black & Decker Inc.
    Inventors: Daniel P. Wall, Jeremy D. Leasure, Craig A. Carroll, Julie L. Jones, Jeffrey D. Weston, Thomas A. Mooty, James P. Nichols, Jr., John W. Schnell
  • Patent number: 8403729
    Abstract: The present invention is a tool for renotching a worn trowel. The invention consists of a grinding wheel adjustably mounted on an adjustable plate. The edge of the plate is provided with adjustable fingers for engaging the notches of a trowel to insure consistent spacing and depth of notches being formed in the trowel when grinding with the tool. The grinding wheel is attachable to an electric drill or similar motive device for rotating the wheel to thereby accomplish the grinding needed to renotch the worn trowel. The tool is provided with a handle for gripping the tool.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: March 26, 2013
    Inventor: Darrell W. Ellison
  • Patent number: 8403730
    Abstract: A grinder can include a stopper projection provided to a grinding stone cover and position a stopper abutting portion on a side of a gear housing in order to restrict a position adjustable range through abutment of the stopper projection to the stopper abutting portion in a position where the grinding stone cover has rotated in a rotational direction of the grinding stone by a set angle.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: March 26, 2013
    Assignee: Makita Corporation
    Inventors: Fumitoshi Numata, Hirokazu Kimata
  • Publication number: 20130065494
    Abstract: A knife-grinder has a body and a grinding device. The body has a handle segment and a mounting segment. The handle segment is formed on a rear end of the body. The mounting segment is formed on a front end of the body, is formed on and protrudes from the handle segment and has a chamber, an opening, two pivot holes and a major grinding mouth. The grinding device is detachably mounted in the body and has two pivot rods, a first grinding element and a second grinding element. The pivot rods are respectively mounted in the pivot holes of the mounting segment. The grinding elements are respectively, rotatably and movably mounted around the pivot rods, and each grinding element has a spacing disk and two grinding slices. The grinding slices are respectively, rotatably and movably mounted around the pivot rods beside the spacing disks in an alternative arrangement.
    Type: Application
    Filed: September 13, 2011
    Publication date: March 14, 2013
    Inventor: WEN-CHIU WU
  • Publication number: 20130059508
    Abstract: A device is provided that includes at least one motor part having a housing surrounding an electric motor for driving an active head part accommodating a tool such as a tool for grinding, sanding or the like, and a suction pipe intended to be connected to a suction device. The suction pipe leads to the housing of the motor part and the motor comprises a sealed high-frequency electric motor positioned in the central part of said housing in such a way that the sucked-in air circulates around the body of the motor.
    Type: Application
    Filed: April 5, 2012
    Publication date: March 7, 2013
    Applicant: M.B.H. DEVELOPPEMENT
    Inventor: Marc BOTTAZZI
  • 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: 8371907
    Abstract: A rotary abrasive device and for facilitating the removal of dust from a work surface. The rotary abrasive device may include a plenum, a plenum coupled to a vacuum source via a plenum exhaust. The shape of said plenum may be varied depending upon application. The plenum exhaust is right biased in a clockwise shaft rotation in order to pick-up debris off of a clockwise rotating abrasive device. The invention may include a rotary constraining member to allow the shaft to rotate freely through the plenum and a locking means to keep the plenum in a substantially fixed position. According to further illustrative embodiments of this aspect of the invention, the plenum one or more inlets of a fixed or varying width to pick-up debris off of a work surface.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: February 12, 2013
    Inventor: Brad Smythe Clayton
  • Publication number: 20130029568
    Abstract: A device for processing welding electrodes with a grinding surface driven by a driving motor with a shaft, which faces the motor and runs in a housing, wherein at least one opening is provided in the housing for guiding a welding electrode for grinding in a defined position relative to the grinding wheel. The housing is releasably fixed to a motor flange for bearing the shaft, and the grinding wheel is arranged on a side of the motor flange which is remote from the motor. The motor flange is formed by a sleeve, which is adapted to be stuck onto the housing in such a way, that at least one opening extends from the circumference of the housing towards the grinding surface facing the motor.
    Type: Application
    Filed: July 26, 2012
    Publication date: January 31, 2013
    Inventor: ROLF TAMM
  • Publication number: 20130023189
    Abstract: In a grinder, a motor is accommodated in a housing so that an output shaft faces forward, a paddle switch that turns on and off a drive switch of the motor is supported by the housing so that the paddle switch can be operated to move in a direction perpendicular to the output shaft of the motor, and a brake device that brakes rotation of the output shaft is provided on a front side of the motor in the housing. The grinder includes a cooperative mechanism that releases the brake device in response to a pushing operation of pushing the paddle switch toward the housing to turn on the drive switch.
    Type: Application
    Filed: June 12, 2012
    Publication date: January 24, 2013
    Applicant: MAKITA CORPORATION
    Inventor: Fumitoshi NUMATA