Tools Patents (Class 125/36)
  • Patent number: 10443311
    Abstract: A top surface drilling device has a core bit and a drill head disposed in the core bit. The drill head has a smaller diameter than that of the core bit, and the core bit and the drill head can be driven at different angular speeds.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: October 15, 2019
    Assignee: TRACTO-TECHNIK GMBH & CO. KG
    Inventors: Elmar Koch, Andreas Joachim Hanses, Sebastian Fischer, Martin Köper
  • Patent number: 9775724
    Abstract: A prosthetic inserter includes an inserter head having at least first and second bosses, at least one of the bosses movable from a first position to a second position, that couple the inserter to a femoral provisional component via a pair of corresponding apertures, such as drill holes, within the articulating surfaces of a selected one of a series of femoral provisional components. Each provisional component of the series is capable of having different aperture distances measured between a respective pair of apertures. The bosses of the inserter are biased into an engagement position in which the inserter can be secured to a femoral provisional component to eliminate the need for an external engagement force to be supplied to the inserter.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: October 3, 2017
    Assignee: Zimmer, Inc.
    Inventors: Jeff Blaylock, Jody L. Claypool, Stephen H. Hoag, Anthony Romano
  • Publication number: 20150121965
    Abstract: A method of scribing a graphic on a material is provided, in which laser output is applied to the material. The laser output is moved relative to the material at a high speed greater than 10 m per second, and at a high power greater than 500 W, to scribe a graphic on a surface of the material. Also provided is a system for scribing a graphic on a material. The method and system of the invention are especially useful in the scribing of building materials.
    Type: Application
    Filed: December 30, 2014
    Publication date: May 7, 2015
    Inventors: Darryl J. Costin, Darryl J. COSTIN, JR., Kimberly L. RIPLEY
  • Patent number: 8807126
    Abstract: A sawing rope (270) with abrasive elements (506) fixed on a steel rope (502) with a polymer jacket (504) is described and claimed. The abrasive elements (506) are made of a metallic sleeve on which an abrasive layer is deposited by means of electrolytic deposition, by means of sintering or by means of cladding for example laser cladding. Characteristic about this sawing rope (270) in view of the prior known sawing ropes is that each sleeve shows a connection or closure. Such a connection makes it possible to attach abrasive elements (506) on the rope without having to thread them on the rope (270) as is needed when making prior-art sawing ropes. The inventive sawing rope (270) can therefore be made in long lengths in a very efficient way.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: August 19, 2014
    Assignee: NV Bekaert SA
    Inventors: Tom Baekelandt, Roland Groenen, Steven Van Der Linden, Peter Persoone
  • Patent number: 8584662
    Abstract: Apparatus and methods of processing fiber-cement workpieces to form fiber-cement shake panels. One embodiment of such a method comprises positioning a cured fiber-cement workpiece over an anvil plate having at least one slot and driving a cutting blade along a straight, vertical path to pass a cutting edge of the cutting blade through the workpiece. The process can optionally include coating the fiber-cement panels before installing the fiber-cements panels on a wall.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: November 19, 2013
    Assignee: PacTool International
    Inventor: John T. Whitehead
  • Patent number: 8201548
    Abstract: A power tool stand includes a guide carriage (4), and a tool coupling (1) for a portable power tool (3) and including a carriage coupling member (1a) provided on the guide carriage (4), having a clamping surface (5a), two hooks (7a, 7b) spaced from each other along the clamping surface (5a) with at least the first hook (7a) being displaceable along the clamping surface (1a), and connectable with a tool coupling member (1b) for the power tool (3) and having a clamping surface (5b the tool coupling member (1b) having two free-lying, arranged at least partially circumferentially, bolts (6) which can be hanged behind the two associated hooks (7a, 7b) of the carriage coupling member (1a).
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: June 19, 2012
    Assignee: Hilti Aktiengesellschaft
    Inventors: John van Taack-Trakranen, Christian Sattler, Markus Jocham
  • Publication number: 20100218753
    Abstract: Apparatus and methods of processing fiber-cement workpieces to form fiber-cement shake panels. One embodiment of such a method comprises positioning a cured fiber-cement workpiece over an anvil plate having at least one slot and driving a cutting blade along a straight, vertical path to pass a cutting edge of the cutting blade through the workpiece. The process can optionally include coating the fiber-cement panels before installing the fiber-cements panels on a wall.
    Type: Application
    Filed: January 19, 2010
    Publication date: September 2, 2010
    Inventor: John T. Whitehead
  • Patent number: 7766001
    Abstract: A device for positioning and blocking thin silicon wafers after wire-sawing a silicon wafer block. The device comprises a cassette that accommodates the wafer block and is provided with two contact strips whose sides facing the wafer block encompass elements which engage into narrow cutting gap between the wafers so as to maintain a distance and provide support. This allows the wafers to be fixed in the position thereof even after removing a supporting glass plate such that particularly the gap in the area of the former connecting point to the removed supporting glass plate is maintained and the subsequent singulation process is simplified.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: August 3, 2010
    Assignee: Schmid Technology Systems GmbH
    Inventors: Josef Gentischer, Dirk Habermann
  • Patent number: 7603999
    Abstract: A metal bonded drilling and boring tool which can prevent the separation of abrasive grains during drilling and boring to maintain a stable working performance for a long period of time without the need for tool exchange. The tool includes a rod-shaped body having a substantially semispherical front end portion and numerous abrasive grains bonded to an outer circumferential surface of the rod-shaped body at the front end portion and at a portion having a given length from the front end portion by a bond member formed primarily of copper alloy. The bond member contains a material selected from the group consisting of Ti, Al, and a mixture thereof. The copper alloy is selected from the group consisting of bronze containing 10 to 33 wt % of Sn, brass containing 5 to 20 wt % of Zn, and aluminum bronze containing 5 to 20 wt % of Al.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: October 20, 2009
    Assignee: Tenryu Seiko Kabushiki Kaisha
    Inventors: Sokichi Takemura, Yoshikazu Kusachi, Akihiko Nakagawa
  • Publication number: 20090199836
    Abstract: A wiresaw beam for use in an apparatus for slicing wafers from an ingot, such as semiconductor wafers from a single crystal ingot or a polycrystalline silicon ingot. The wiresaw beam may be made from a polymer composite material comprising a thermoset polymer resin and carbon nanotubes.
    Type: Application
    Filed: February 6, 2009
    Publication date: August 13, 2009
    Applicant: MEMC ELECTRONIC MATERIALS, INC.
    Inventor: Puneet Gupta
  • Publication number: 20090145417
    Abstract: A power tool stand includes a guide carriage (4), and a tool coupling (1) for a portable power tool (3) and including a carriage coupling member (1a) provided on the guide carriage (4), having a clamping surface (5a), two hooks (7a, 7b) spaced from each other along the clamping surface (5a) with at least the first hook (7a) being displaceable along the clamping surface (1a), and connectable with a tool coupling member (1b) for the power tool (3) and having a clamping surface (5b the tool coupling member (1b) having two free-lying, arranged at least partially circumferentially, bolts (6) which can be hanged behind the two associated hooks (7a, 7b) of the carriage coupling member (1a).
    Type: Application
    Filed: November 14, 2008
    Publication date: June 11, 2009
    Inventors: John van Taack-Trakranen, Christian Sattler, Markus Jocham
  • Patent number: 7516527
    Abstract: A repair assembly for the skid plate of a circular saw and its associated method of repair. If a circular saw has a skid plate that is worn to a point where it needs replacement, this repair assembly is used to reinforce the worn skid plate so it can again be used. The repair assembly includes a flat plate structure having a sort extension and a long extension protruding from different sides. The long extension and the short extension mount directly onto the worn skid plate. The flat plate structure therefore covers the wear surfaces of the worn skid plate, therein providing new wear surfaces. The repair assembly attached over the worn skid plate so the worn skid plate does not have to be removed.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: April 14, 2009
    Inventor: Edward A. Zuzelo
  • Patent number: 7404399
    Abstract: Various types of diamond tools are provided by utilizing the fact that a synthetic single crystal diamond for use in a tool having a nitrogen content of 3 ppm or less exhibits an enhanced hardness in a (100) plane in a <111> direction and simultaneously the reduction in defects. The above synthetic single crystal diamond is synthesized by the temperature difference method under an ultra high pressure at high temperature and contains, in its crystals, nickel introduced by atomic substitution or boron and nickel introduced by atomic substitution.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: July 29, 2008
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Hardmetal Corp.
    Inventors: Hitoshi Sumiya, Yutaka Kobayashi, Katsuyuki Kawate, Takeru Nakashima
  • Patent number: 7363922
    Abstract: The invention relates to a flat chisel, in particular an insertion chisel for power-driven drill and chisel hammers for working stone, having a chisel head which has a main tip disposed transversely to a chisel longitudinal axis, a front and rear striking surface, and at least one side face connecting the striking faces. In this case, a side face designed as a side lip is provided.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: April 29, 2008
    Assignees: Hawera Probst GmbH, Aresi S.p.A.
    Inventors: Marco Lang, Stefano Monzani, Franc Koljaka
  • Patent number: 7044120
    Abstract: A baseplate for a tool having a support member with a passage way therein which has an inlet for receiving fluid and at least one outlet for directing fluid underneath the support member and rotating means attached to the bottom of the support member. The invention increases the ease of movement of the tool and reduces the chances of scratching the surface of the substrate upon which work is being performed.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: May 16, 2006
    Inventors: Marc Rutters, William Edwards
  • Patent number: 7044121
    Abstract: A cutting mechanism minute adjustment device for a stone cutter includes a framed base having a hollow interior rectangular support arm on a front corner including a sustaining plate fixed therein inserted into a rectangular receiving spaced under a left portion of a cutting mechanism with a L-shaped adjustable plate engaged therebetween. The adjustable plate has a rectangular through holes for passing through the support arm and a pair of adjustable slots engaged with a pair of screw holes under the cutting mechanism and releasably secured by a pair screws. The cutting mechanism further has a circular blade on a right side actuated by a motor therein and a screw hole in a left wall communicating to the rectangular space and a U-shaped slit in a top of the support arm. A lock has a threaded shank on front engaged into the screw hole and the receiving space of the cutting mechanism through the U-shaped slit of the support arm.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: May 16, 2006
    Inventor: Wen-Hai Tsao
  • Patent number: 7007686
    Abstract: A repair assembly for the skid plate of a circular saw and its associated method of repair. If a circular saw has a skid plate that is worn to a point where it needs replacement, this repair assembly is used to reinforce the worn skid plate so it can again be used. The repair assembly includes a secondary plate structure having a flat base. The secondary plate structure is mounted directly onto the worn skid plate. The secondary skid plate covers the wear surfaces of the worn skid plate, therein providing new wear surfaces. The repair assembly attached over the worn skid plate so the worn skid plate does not have to be removed.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: March 7, 2006
    Inventor: Edward A. Zuzelo
  • Patent number: 6997175
    Abstract: A wheeled trolley carries various tools across an object to be worked. A track attaches directly to the work and simultaneously isolates the tool from the work. A standard connection to the trolley readily accommodates a variety of diverse tools, using a keyway or the like to ensure accurate and repeatable placement of the tools. A preferred contouring guide allows a tool to be moved through an arc, where the focal point of the arc may be set to produce an infinite variety of custom shapes, bevels or angles of cut. An upper stop is provided which readily sets the break line between surface finish and edge contour. An adjustable tool carriage allows control over both position and force, including preloading a work tool with force. Resilience is incorporated into the apparatus to accommodate diverse hardness and abrasion characteristics, and, in at least one embodiment, to enable the track to accurately follow a warped or sagging work piece.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: February 14, 2006
    Inventor: Robert M. Kalb
  • Patent number: 6948489
    Abstract: A rock cutter for splitting stones is disclosed which shows a support surface for holding the rock and a first blade and a second blade which may be positioned to hold the rock between the first and second blades and on the support surface along with a means for moving the first blade towards the second blade. The means for moving comprises a hydraulically driven piston having a piston arm to which the first blade is mounted. The rock cutter also has a cover which is used in conjunction with a means for receiving pieces of the rock after the rock is split.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: September 27, 2005
    Inventor: Roy G. O'Neal
  • Patent number: 6915796
    Abstract: A superabrasive wire saw having a plurality of individual coated superabrasive particles attached to a wire with an organic binder is disclosed and described. The superabrasive particle can be coated with a solidified coating of a molten braze alloy that is chemically bonded to the superabrasive particle. The organic binder can optionally contain filler materials and/or an organometallic coupling agent to improve the retention of coated superabrasive particles. The resulting superabrasive wire saws can be produced having diameters of less than 0.5 mm which significantly reduce kerf loss. Various methods for making and using such a superabrasive wire saw are additionally disclosed and described.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: July 12, 2005
    Inventor: Chien-Min Sung
  • Patent number: 6851418
    Abstract: A metal bonded drilling and boring tool which can prevent the separation of abrasive grains during drilling and boring to maintain a stable working performance for a long period of time without the need for tool exchange. The tool includes a rod-shaped body having a substantially semispherical front end portion and numerous abrasive grains bonded to an outer circumferential surface of the rod-shaped body at the front end portion and at a portion having a given length from the front end portion by a bond member formed primarily of copper alloy. The bond member contains a material selected from the group consisting of Ti, Al, and a mixture thereof. The copper alloy is selected from the group consisting of bronze containing 10 to 33 wt % of Sn, brass containing 5 to 20 wt % of Zn, and aluminum bronze containing 5 to 20 wt % of Al.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: February 8, 2005
    Assignee: Tenryu Seikyo Kabushiki Kaisha
    Inventors: Sokichi Takemura, Yoshikazu Kusachi, Akihiko Nakagawa
  • Patent number: 6739327
    Abstract: A cutting tool has a centrally located tungsten carbide insert brazed into a seat at the forward end of the tool. The seat has a circular mouth and rearward of the mouth is a frustoconical inner wall. At the bottom of the seat is a transverse surface. A tungsten carbide insert is brazed into the seat and the base of the insert is complementary in shape to the seat. A second annular insert may also be brazed into a complementary shaped annular seat that surrounds the centrally located seat.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: May 25, 2004
    Assignee: The Sollami Company
    Inventor: Phillip A. Sollami
  • Publication number: 20040069292
    Abstract: A point chisel for use with a power tool includes an elongate stem (1) having, at its power tool side a shank (2) for securing the chisel in the power tool and, at its workpiece side, a useful region (3) having its outer diameter (H) tapering toward its workpiece end and having a cross-section (5) formed as a concave polygon by a plurality of axial grooves (4) extending radially toward a core diameter (K) that likewise tapers toward the workpiece side end of the useful region (3).
    Type: Application
    Filed: September 23, 2003
    Publication date: April 15, 2004
    Inventors: Jozsef Szendrovari, Werner Britten, Jozsef Varga
  • Patent number: 6712061
    Abstract: A wheeled trolley carries various tools across an object to be worked. A track attaches directly to the work and simultaneously isolates the tool from the work. A standard connection to the trolley readily accommodates a variety of diverse tools, using a keyway or the like to ensure accurate and repeatable placement of the tools. A preferred contouring guide allows a tool to be moved through an arc, where the focal point of the arc may be set to produce an infinite variety of custom shapes, bevels or angles of cut. An adjustable tool carriage allows control over both position and force, including preloading a work tool with force. Resilience is incorporated into the apparatus to accommodate diverse hardness and abrasion characteristics.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: March 30, 2004
    Inventor: Robert M. Kalb
  • Patent number: 6668817
    Abstract: A method and tool for chipping the edges of natural stone tile may be used to give the tile a used or rustic appearance. The tool includes an axially-rotatable, cylindrical member having an array of studs affixed or embedded in the cylindrical surface. A drive shaft, affixed to one end of the cylindrical member, may be inserted within the chuck of a powered drill motor or other similar powered device. A handle is rotatably coupled to the opposite end of the cylindrical member. For a preferred embodiment of the invention, the handle consists of a tubular sleeve which is rotatably mounted on bearing races over a support shaft that is rigidly and coaxially affixed to the cylindrical member. In order to use the tool, the drive shaft is secured within the chuck of a drill motor or other similar device designed to provide powered rotary motion to a shaft.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: December 30, 2003
    Inventor: Michael L. Staker
  • Patent number: 6638151
    Abstract: The present invention relates to a polishing instrument for polishing a surface into a predetermined configuration. The present invention aims to provide a polishing instrument superior in operability and stability and capable of polishing a surface into a desired configuration. The polishing instrument of the present invention includes: a rotatable rotary substrate portion equipped with a polishing plane holding a polishing material on its surface; a plurality of movable substrate portions equipped with polishing planes which hold the polishing material on their surfaces, which are provided in the peripheral edge of the rotary substrate portion, and which rotate about a connection line connecting them to the rotary substrate portion; and elastic members for biasing the polishing planes of the movable substrate portions toward a position where they are flush with the polishing plane of the rotary substrate portion.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: October 28, 2003
    Inventor: Makoto Ueno
  • Publication number: 20030159686
    Abstract: A method and tool for chipping the edges of natural stone tile may be used to give the tile a used or rustic appearance. The tool includes an axially-rotatable, cylindrical member having an array of studs affixed or embedded in the cylindrical surface. A drive shaft, affixed to one end of the cylindrical member, may be inserted within the chuck of a powered drill motor or other similar powered device. A handle is rotatably coupled to the opposite end of the cylindrical member. For a preferred embodiment of the invention, the handle consists of a tubular sleeve which is rotatably mounted on bearing races over a support shaft that is rigidly and coaxially affixed to the cylindrical member. In order to use the tool, the drive shaft is secured within the chuck of a drill motor or other similar device designed to provide powered rotary motion to a shaft.
    Type: Application
    Filed: February 28, 2002
    Publication date: August 28, 2003
    Inventor: Michael L. Staker
  • Patent number: 6539933
    Abstract: A tool for shell or slab-splitting rocks or for wedging rocks in tunnels comprising a hydraulic/pneumatic cylinder (2) with an internal first piston (3), said first piston (3) being provided with a hydraulic/pneumatic pressure by supplying a fluid, preferably oil, through a supply conduit (1), and the power from the piston (3) is transferred to a wedging device comprising a wedge (10) which may be displaced between wedge holders (11, 12) being located in a drilled hole (13), the piston (3) being connected to a piston rod (7) which runs to a second internal piston (8) being located in a piston housing (6), the power from the first piston (3) being transferred to the piston (8), for thereby pressing the wedge holders (11,12) towards the surrounding rock, and creating a crack therein at the appropriate pressure wherein the wedge (10) is located parallel to the lengthwise axis and peripherally in relation to the hydraulic/pneumatic cylinder (2) is disclosed.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: April 1, 2003
    Assignee: Stu-Stein, Teknologi og Utvikling
    Inventor: Roar Nordhagen
  • Patent number: 6439219
    Abstract: A machine tool for working stones and agglomerates of inert materials having a support for the abrasive or, respectively, cutting material to contact the stone during working and a connecting part for connecting the tool to the machine which generates and transmits to the tool the movement that the tool performs during working; the support and the connecting part are fastened to each other, in a detachable manner, by way of removable locking elements. Between the support and the connecting part a layer is interposed, made of a material which is suitable to damp the mechanical vibrations of the machine, reducing their transmission from the connecting part to the support, and suitable to damp the vibrations that occur in the support during working, and reducing further their transmission from the support to the connecting part.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: August 27, 2002
    Inventor: Vittorio Pareti
  • Patent number: 6367468
    Abstract: A baseplate for a masonry tool having a support member with a passageway therein which has an inlet for receiving fluid and at least one outlet for directing fluid underneath the support member and rotating means attached to the bottom of the support member. The invention reduces the chances of scratching the surface of the substrate upon which work is being performed while allowing easy movement of the tool under all circumstances.
    Type: Grant
    Filed: November 11, 1999
    Date of Patent: April 9, 2002
    Inventors: William Edwards, Marc Rutters
  • Publication number: 20020023635
    Abstract: A method of forming a base body for a diamond bit having a tubular carrier body (2, 12) with a bottom (4), and a shank (1, 11) projecting from the bottom (1), with the carrier body (2, 12) and the bottom being produced by a spinning process.
    Type: Application
    Filed: August 21, 2001
    Publication date: February 28, 2002
    Inventors: Gunther Veik, Achim Ruf, Christoph Laumen
  • Patent number: 6283113
    Abstract: A tool is provided herein for separating stacked strips of semiconductor structures held by a magazine, which strips have become attached together. The tool is made up of first and second elongated members in side-by-side relation, each member defining a plurality of teeth along an edge thereof. The first and second members are mounted together so as to allow relative reciprocal movement therebetween, so that relative reciprocal movement between the pluralities of teeth is provided. The tool is held with the teeth against the edges of strips carried by the magazine, and the operator squeezes and releases member handles to provide relative reciprocal movement of the teeth. This back-and-forth reciprocal movement causes the teeth to rub against and force apart the strips, to in turn separate them.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: September 4, 2001
    Assignee: Advanced Micro Devices, Inc.
    Inventor: Adisorn Kanjanavikat
  • Patent number: 6003505
    Abstract: A cleaning tool for cleaning vinyl or acrylic type items, such as swimming pools or hot tubs. An aggregate and a binder are mixed together to provide an improved cleaning device. The binder and the aggregates are matched so as to wear at substantially identical rates.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: December 21, 1999
    Assignee: Ralph Dalton
    Inventors: Ralph Dalton, Roy J. Walters
  • Patent number: 5992405
    Abstract: A tool mounting block having a forward surface and a rearward surface and a cylindrical transverse aperture extending therethrough opening onto both the forward and rearward surfaces. The tool has a tapered forward cutting end, and axially aligned behind the forward cutting end is an annular flange. Axially aligned behind the annular flange is a cylindrical mounting portion adapted to sidably fit within a complementarily cylindrical aperture of the mounting block, and extending rearward of the cylindrical mounting portion is a threaded stud. At the forward end of the tapered cutting end is a seat into which a hardened metal insert is bonded. To retain the cylindrical mounting portion of the tool within the cylindrical aperture of the mounting block, a locking nut assembly is threaded on the stud. When a tool is retained in a mounting block by such a nut assembly, the nut may be tightened to prevent rotation of the tool within the mounting block.
    Type: Grant
    Filed: January 2, 1998
    Date of Patent: November 30, 1999
    Assignee: The Sollami Company
    Inventor: Phillip A. Sollami
  • Patent number: 5927264
    Abstract: The invention is directed to an extended wear stone polishing disk for use with an automatic polishing head. The disk consists of a first plastic plate of prescribed flexibility having a pair of mounting studs secures therewith to extend above its upper face. The mounting studs form a quick release securing members which locks with the mounting plate and secures it with the first plate. A second plastic plate and a resilient foam pad secured there between. A plurality of diamond faced grinding and polishing segments are secured with the lower face of the second plate in a prescribed pattern to form a polishing face. In use, the resilient foam pad evenly distributes resistance to pressure applied against the second plate during polishing while allowing the polishing face to distort in conformance with the contour of the surface being polished.
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: July 27, 1999
    Inventor: Kenneth Worley
  • Patent number: 5887580
    Abstract: A cutting element having a body which includes a grip portion from which extends a protrusion which is concentric to the grip portion. The diameter of the grip portion is larger than the diameter of the protrusion. Moreover, the upper portion of the protrusion has a larger diameter than the base of the protrusion. An ultra hard material cutting layer is formed on top of the protrusion and grip, covering and surrounding the protrusion resulting in a cutting layer that is mechanically interlocked with the body of the cutting element. A transition layer may be incorporated between the protrusion and the ultra hard material layer. The transition layer is preferably encapsulated by the ultra hard material layer.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: March 30, 1999
    Assignee: Smith International, Inc.
    Inventor: Ronald K. Eyre
  • Patent number: 5598832
    Abstract: The present invention is concerned with a method and an apparatus for cutting a stone based material of which product can conveniently be used in the form of a tile or the like employable for constructing a walking road, a building floor, a building wall or the like.First, a lower elastic plate having a lower cutting wire formed thereon to exhibit a desired contour is placed on a platform for the cutting apparatus at a predetermined position, and thereafter, a stone based material to be cut is placed on the lower cutting wire of the lower elastic plate. Subsequently, an upper elastic plate having an upper cutting wire formed thereon to exhibit the same or the substantially same contour as that of the lower cutting wire is fixed to the moving part of a press section for the cutting apparatus at a predetermined position positionally coincident with the foregoing predetermined position on the lower elastic plate.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: February 4, 1997
    Assignee: New Man International Co., Ltd.
    Inventor: Hisaaki Aoki
  • Patent number: 5318006
    Abstract: Disclosed is a cutting insert, particularly an indexable cutting insert for mining applications. The illustrated embodiment is an indexable cutting insert for chain saws used in the quarrying of natural stone. The cutting insert has a support member and at least one cutting member attached to the support member, the cutting member having at least one cutting surface and comprising a selfbonded kalacrystaline superabrasive material being formed such that the cutting member has a width substantially less than its depth and attached to the support member such that the width is the cutting surface.
    Type: Grant
    Filed: March 23, 1993
    Date of Patent: June 7, 1994
    Assignee: General Electric Company
    Inventors: Robert C. Walen, Luther L. White
  • Patent number: 5146909
    Abstract: There is provided a tool for trueing and dressing a variety of grinding wheels, comprising a metal block having a thin vertical layer of diamond particles forming a contacting surface. The tool may have a straight edge profile for trueing and dressing Type 1A1 grinding wheels or be fabricated with a non-linear profile for trueing and dressing grinding wheels with complementary profiles. There is also provided a method for trueing and dressing a grinding wheel, by angularly engaging the periphery of a rotating grinding wheel with a stationary trueing and dressing tool having a thin vertical layer of diamond particles. The diamond layer of the tool forms a single point having an effective cutting crossfeed rate relative to the rotational speed of the wheel, the speed at which the wheel is presented to the trueing and dressing block and the angle of said diamond layer within said block relative to the path of travel of the wheel.
    Type: Grant
    Filed: December 28, 1990
    Date of Patent: September 15, 1992
    Assignee: The General Electric Company
    Inventors: William W. Ruark, Robert L. Henry
  • Patent number: 5078551
    Abstract: A diamond tool 1 comprising a tool tip 5 of boron-containing single-crystal diamond.
    Type: Grant
    Filed: September 11, 1990
    Date of Patent: January 7, 1992
    Assignee: U.S. Philips Corporation
    Inventor: Johannes M. Oomen
  • Patent number: 5044568
    Abstract: A hand crusher with a main body, which consists of a cylinder unit having a built-in oblong hydraulic cylinder and a parallel plate unit bonded on the periphery of said cylinder unit. Crushing arms are pivotally supported on the lower portion of the parallel plate unit, and the crushing are opened or closed in linkage with a piston rod, which extends from the hydraulic cylinder and makes reciprocal movement along the center line. Slide keys located at the tip of the piston rod engage in guide grooves on the parallel plate unit. A ring-like handle member is rotatably mounted on the rotating unit at the upper end of the cylinder unit, and a left grip and a right grip are connected on both ends of the handle member. On the inner periphery of the rotating unit of the handle member, balls are movably embedded at symmetrical positions, and catching recesses to catch the balls are furnished at every predetermined angle on the outer periphery of the rotating unit.
    Type: Grant
    Filed: August 20, 1990
    Date of Patent: September 3, 1991
    Assignee: Takachiho Kogyo Yuugen Kaisha
    Inventor: Akihiko Shigemizu
  • Patent number: 4829976
    Abstract: The invention relates to a cutting tool constituted by an elongated body having a first end and a second end, and being provided at each of these ends with means such as a screw thread for removably fixing a holding member or handle, and at its first end with a first cutting point.The second end is equipped with a second cutting point.The invention is applied to the production of a tool for cutting earthenware tiles.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: May 16, 1989
    Assignee: Tomecanic
    Inventors: Thierry Pourtau, Abel Thiriet
  • Patent number: 4361130
    Abstract: A tool for rapidly nibbling at an edge of a glass sheet to shape (groze) the edge without splitting or cracking the sheet is described. The tool has hinged jaw surfaces which are shaped in a V so as to contact only corners at the edge when the jaws are moved towards each other. The tool is used to repeatedly nibble single flakes of glass from the edge and thus rapidly form the desired contour. The tool is particularly adapted to trimming or shaping an edge of stained glass pane for windows and the like, as well as for trimming irregular edges or excess material from sheet window glass which has been scored and then broken.
    Type: Grant
    Filed: October 28, 1980
    Date of Patent: November 30, 1982
    Assignees: Mark Talaba, Angela S. Maglia
    Inventor: Andrew R. Maglia, deceased
  • Patent number: 4114226
    Abstract: A fracture resistant wearing edge is provided on unicrystalline alpha alumina material by the intersection of planar surfaces which are parallel to m-planes of the unicrystalline alpha alumina. Such planar surfaces intersect at an angle of 60.degree. or 120.degree. and the intersection of such surfaces is an edge substantially parallel to the C-axis of the unicrystalline alpha alumina material.
    Type: Grant
    Filed: March 1, 1977
    Date of Patent: September 19, 1978
    Assignee: Union Carbide Corporation
    Inventor: Peter Carter Warren
  • Patent number: 4089562
    Abstract: An asphalt-paving cutter tool, adapted to be driven by a power-operated hammer mechanism, has an upper shank adapted to be received and held in the socket of the hammer mechanism, and a wide lower cutter portion terminating at the lower end in a chisel-like cutting edge. Intermediate the upper shank and the lower cutter portion is a wedging-and-reaction portion having divergently-upward sidewalls inclined at an angle of the order of 15.degree.-35.degree. relative to the vertical. This portion has two functions. It develops a wedging force to widen the cut, and it develops a reaction force in the blade-lifting direction. These two forces facilitate removal of the cutting tool from the asphalt paving after the cut has been made.
    Type: Grant
    Filed: April 27, 1977
    Date of Patent: May 16, 1978
    Inventor: Frederick F. Baumeister