Tool Adjustable Relative To Holder Patents (Class 407/77)
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Patent number: 10155268Abstract: A cutting edge configuration of a cutting tool for performing a cutting process on a surface (21) of a workpiece (19), the cutting tool including a rake face (3) provided with first and second cutting edges (11, 13), the cutting tool being moved relative to the surface-to-be-cut (21) with the first and second cutting edges (11, 13) cutting thereinto to thereby perform the cutting process, wherein the first cutting edge (11) is positioned ahead of the second cutting edge (13) in a cutting direction (z-direction) of the cutting tool to provide the rake face (3) with a feed-direction (y-direction) rake-angle, and the cutting tool is fed in a direction from a side of the second cutting edge (13) to a side of the first cutting edge (11).Type: GrantFiled: March 11, 2005Date of Patent: December 18, 2018Assignee: NISSAN MOTOR CO., LTD.Inventors: Kazuhiko Takashima, Tomoyoshi Sakamoto, Hiroshi Shimomura
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Patent number: 9421614Abstract: A cutting tool comprising a tool holder (2) with a pocket (22) and a cutting insert (3) in the shape of a polygon having at least three side surfaces (33, 34, 35). The pocket (22) is provided with a base support surface (24) and at least two lateral support surfaces (25, 26). The cutting insert (3) is releaseably securable in the pocket (22) with two side surfaces of the insert (34, 35) abutting the two lateral support surfaces (25, 26) of the pocket (22). At least one of the side surfaces (33, 34, 35) and at least one of the lateral support surfaces (25, 26) are provided with a notch (37) and a complimentary rib element (28) extending in an axial direction of the insert and interacting for providing an end stop of the cutting insert (3) in the pocket (22).Type: GrantFiled: May 13, 2013Date of Patent: August 23, 2016Assignee: VARGUS Ltd.Inventors: Rafael Morgulis, Artur Zaretsky
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Patent number: 9259789Abstract: An indexable cutting insert has two cutting protrusions extending from opposite end surfaces towards a mid plane. Each cutting protrusion has a rear surface, an oppositely facing rake surface, a relief surface. A main cutting edge is formed at the intersection of the rake and relief surfaces, and extends between two main cutting edge ends. An edge projection is formed by a line connecting longitudinal projections of the main cutting edge ends of each main cutting edge. The edge projections of both of the main cutting edges form a non-zero first angle therebetween. The rake surfaces of the cutting protrusions are located on longitudinally opposite end surfaces of the cutting insert. Two clamping recesses and two abutment recesses serve as contact surfaces for clamping the cutting insert in an insert pocket of a cutting tool.Type: GrantFiled: October 31, 2013Date of Patent: February 16, 2016Assignee: Iscar, Ltd.Inventor: Yaron Eisen
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Patent number: 9108249Abstract: A cutting insert for use in a drilling tool includes two end faces disposed perpendicular to an insert axis and a plurality of side walls connecting the end faces. Supporting surfaces for bearing against corresponding mating supporting surfaces of a cutting insert receptacle of the drilling tool are formed on at least two of the side walls arranged in a rear region of the cutting insert. A main lip for machining a workpiece to be drilled is formed on at least one side wall arranged in a front region of the cutting insert. The side walls having the supporting surfaces are arranged in such a way that the cutting insert can be inserted into a trigon cutting insert receptacle in an accurately fitting manner.Type: GrantFiled: February 8, 2012Date of Patent: August 18, 2015Assignee: KENNAMETAL INC.Inventor: Horst Manfred Jäger
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Publication number: 20140234039Abstract: In view of the foregoing, an embodiment herein provides a rigid cartridge for multiple and universal application of all machining processes. The rigid cartridge includes a cylindrical body, a guiding & locating body connected to bottom side of cylindrical body, and a combination screw having a left hand [LH] thread and a right hand [RH] thread, wherein the cylindrical body includes a flat for locking the cartridge with the cutter body by using a locking screw, wherein the combination screw is connected to the bottom end of said guiding & locating body. The LH thread is provided in cartridge side and RH thread is provided in cutter body side or vice versa. In the cutter body or boring bar, a slot is provided for enabling to rotate the combination screw in clockwise or anti-clockwise direction to move the cartridge in forward and backward direction.Type: ApplicationFiled: November 15, 2012Publication date: August 21, 2014Inventor: Vijay Kumar Mada
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Patent number: 8684637Abstract: An arrangement for the non-rotational connection between a toothed tool wheel for the machining of end peripheral areas of tooth flanks, having an axis of rotation, and a tool holding fixture that can be rotationally driven around an axis of rotation. Said arrangement has an elastic means with a restoring force against which the direction of the axis of rotation of the tool wheel can be displaced relative to the direction of the axis of rotation of the tool holding fixture.Type: GrantFiled: April 13, 2010Date of Patent: April 1, 2014Assignee: The Gleason WorksInventors: Karl Schaeferling, Gerhard Reichert
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Patent number: 8506209Abstract: A cutting tool has a cutting insert, a tool holder, and an adjustment member. The tool holder includes an insert holder portion and a shank portion, the insert holder portion being rigidly fixed to the shank portion. The cutting insert is removably secured to the insert holder portion by a fastener, at a cutting position in which the operative cutting portion encounters a workpiece at an insert cutting angle. The adjustment member is a non-threadingly retained on the insert holder portion, and operatively connected to the cutting insert. Actuation of the adjustment member causes an increase or decrease of the insert cutting angle.Type: GrantFiled: March 8, 2012Date of Patent: August 13, 2013Assignee: Iscar, Ltd.Inventor: Gil Hecht
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Publication number: 20130142579Abstract: A clamping device having a high clamping force and operability when a cutting insert is attached/detached is provided. The clamping device has a guide hole, a screw hole, a clamp member having a clamp portion and arranged movably in the guide hole, and a screw member screwed with the screw hole and movable in first and second directions, wherein the screw member can be engaged with the clamp member in movement both in the directions and the guide hole has a first cam surface engaged with the clamp member and converting a force in the first direction received from the screw member into a force for moving the clamp member in a direction toward the cutting insert and a second cam surface converting a force in the second direction into a force for moving the clamp portion in a direction away from the cutting insert.Type: ApplicationFiled: January 29, 2013Publication date: June 6, 2013Applicant: TUNGALOY CORPORATIONInventor: TUNGALOY CORPORATION
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Publication number: 20130071193Abstract: A tool cartridge for a material removal tool has a cartridge body with, among other things, a recess extending through at least a portion of the cartridge body from a first side toward a second side, a long axis of the recess non-parallel to a long axis of the cartridge body and at least a portion of the recess open to a bottom side of the cartridge body, and a threaded opening for a differential screw proximate a second end of the tool body and positioned longitudinally between an opening for a clamping screw and at least a portion of a seat for a cutting tool insert. A thread axis of the threaded opening is at an angle G relative to a long axis of the tool cartridge. A material removal tool, a tool, and a method of adjusting a cutting tool insert are also disclosed.Type: ApplicationFiled: September 19, 2011Publication date: March 21, 2013Applicant: Sandvik Intellectual Property ABInventors: Yevgeny KOCHEROVSKY, Gregor Weber, Curt Holbrook
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Publication number: 20130028671Abstract: A cutting tool has a cutting insert, a tool holder, and an adjustment member. The tool holder includes an insert holder portion and a shank portion, the insert holder portion being rigidly fixed to the shank portion. The cutting insert is removably secured to the insert holder portion by a fastener, at a cutting position in which the operative cutting portion encounters a workpiece at an insert cutting angle. The adjustment member is a non-threadingly retained on the insert holder portion, and operatively connected to the cutting insert. Actuation of the adjustment member causes an increase or decrease of the insert cutting angle.Type: ApplicationFiled: March 8, 2012Publication date: January 31, 2013Applicant: Iscar, Ltd.Inventor: Gil Hecht
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Publication number: 20120227553Abstract: The invention concerns a tool head with a housing (11), in which at least one thrusting wedge (31, 32, 33) is provided, able to move back and forth in the longitudinal direction (L) in a first toothed guide, which is coordinated with a support (21, 22, 23) in the housing (11), able to move in a second toothed guide in a transverse direction (R1, R2, R3) transversely to the longitudinal direction (L), and the thrusting wedge (31, 32, 33) and the coordinated support (21, 22, 23) are in sliding contact with each other via a slanted contact surface (51, 52, 53) and a movement of the thrusting wedge (31, 32, 33) in the longitudinal direction (L) brings about a transverse movement of the coordinated support (21, 22, 23) via the slanted contact surface (51, 52, 53) and a cutting tool (161, 162, 163) can be fastened on the support (21, 22, 23) and the support (21, 22, 23) has a support arm (101, 102, 103) extending in the transverse direction (R1, R2, R3).Type: ApplicationFiled: December 9, 2011Publication date: September 13, 2012Inventor: Ulrich Rattunde
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Publication number: 20120163936Abstract: A cutting tool has a shank with a circumferential groove and an adjustment ring releasably secured to the shank at the groove. The adjustment ring has a threaded through bore in which a screw is screw mounted and engages the groove. The adjustment ring has an adjustment member which engages the groove and which is positioned diametrically opposite the threaded through bore. When the screw is tightened it exert a purely radially directed force on the groove thereby inducing displacement of the adjustment member radially inwardly and the adjustment member exerts non-radially directed forces on the groove, thereby inducing a bending moment on the shank for correction of radial runout.Type: ApplicationFiled: October 28, 2011Publication date: June 28, 2012Applicant: Iscar, Ltd.Inventor: Gil Hecht
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Publication number: 20120087750Abstract: Provided is an insert that has good positioning precision and sufficient rigidity. Said insert is rod-shaped and has: a shank part; cutting blades formed on both sides of the shank part; and raised surfaces that are positioned between the cutting blades and the shank part and bulge such that parts farther away from the cutting blades are progressively closer to the outer surface of the shank part. In a side view, the rake face of the cutting blade on one side and the raised surface on the other side are disposed in the same direction with respect to the axis of rotation of the shank part.Type: ApplicationFiled: June 23, 2010Publication date: April 12, 2012Applicant: KYOCERA CORPORATIONInventor: Youji Kobayashi
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Publication number: 20120034040Abstract: The invention relates to a cutting tool setting system comprising a tool head for the settable holding of a cutting tool, said head comprising an adjustment device for the cutting tool. The cutting tool setting system comprises a setting tool which can be mechanically removably engaged in the tool head at an interface for adjusting the adjustment device in the tool head. The setting tool comprises a shaft body having a key part. A key engagement for actuating the adjustment device is designed on the tool head. The key part can be displaced relative to the shaft body in the direction of the longitudinal axis of said body in order to selectively couple and release the key part of the setting tool and the key part at the interface of the tool head.Type: ApplicationFiled: March 25, 2010Publication date: February 9, 2012Inventors: Jochen Frank, Ewald Hasselkuss, Frank Stahl
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Patent number: 8061396Abstract: A tooth for a circular saw or a mower drum that can be used to cut standing trees or brush and undergrowth. The tooth has four cutting edges arranged in a first pair of opposed cutting edges that are generally straight and a second pair of opposed cutting edges that are generally concave. The tooth is mounted in a holder in a first or second cutting position that orients a cutting edge of the first or second pair to physically contact and effect a cutting method to a cuttable material. In a first cutting method, a generally straight cutting edge contacts the material, resulting in a slicing action. In a second cutting method, a generally concave cutting edge contacts the material, resulting in a gouging action. Teeth in the circular saw or brush mower alternate between first and second cutting positions, allowing both cutting methods to be applied to cuttable material.Type: GrantFiled: January 16, 2009Date of Patent: November 22, 2011Inventors: Charles MacLennan, Denis Rioux
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Publication number: 20100050831Abstract: The invention concerns a tool head with a housing (11), in which at least one thrusting wedge (31, 32, 33) is provided, able to move back and forth in the longitudinal direction (L) in a first toothed guide, which is coordinated with a support (21, 22, 23) in the housing (11), able to move in a second toothed guide in a transverse direction (R1, R2, R3) transversely to the longitudinal direction (L), and the thrusting wedge (31, 32, 33) and the coordinated support (21, 22, 23) are in sliding contact with each other via a slanted contact surface (51, 52, 53) and a movement of the thrusting wedge (31, 32, 33) in the longitudinal direction (L) brings about a transverse movement of the coordinated support (21, 22, 23) via the slanted contact surface (51, 52, 53) and a cutting tool (161, 162, 163) can be fastened on the support (21, 22, 23) and the support (21, 22, 23) has a support arm (101, 102, 103) extending in the transverse direction (R1, R2, R3).Type: ApplicationFiled: November 7, 2007Publication date: March 4, 2010Inventor: Ulrich Rattunde
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Publication number: 20090290946Abstract: A cutting insert for machining a workpiece. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.Type: ApplicationFiled: November 17, 2008Publication date: November 26, 2009Inventor: Jurgen ZASTROZYNSKI
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Publication number: 20090047077Abstract: An expandable/compressible slot and/or opening may be formed by machining a tool holder body. The slot and/or opening may receive a tool and secure it therein utilizing the inner surface of the slot and/or opening. Adjustment members may be utilized for compressing and/or expanding the slot and/or opening to permit insertion and/or removal of the tool.Type: ApplicationFiled: August 13, 2007Publication date: February 19, 2009Inventor: Billy Fielder
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Patent number: 7311477Abstract: A metal cutting tool is provided with at least one cutting insert mounted in an insert pocket in communication with an adjusting mechanism, the cutting insert comprising at least one insert adjusting slot extending between two opposing major faces thereof and opening out to each major face at an adjusting aperture and the adjusting mechanism comprising at least one adjusting member having an adjusting member top face underlying the cutting insert while being visible and accessible therethrough.Type: GrantFiled: August 31, 2005Date of Patent: December 25, 2007Assignee: Iscar Ltd.Inventors: Gil Hecht, Oleg Eliezer
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Patent number: 7300231Abstract: A cutting tool carrying device includes a carrying member having one or more compartments formed in an outer peripheral portion each for receiving a base member, and a follower slidably engaged into each of the base members for supporting a cutting member. An adjusting device may adjust the follower relative to the base member to partially extend the cutting member out of the outer peripheral portion of the carrying member for suitably machining the work pieces. A pressing device may be slidably attached to the base member for forcing the cutting member to the base member and for allowing the cutting member to be adjusted relative to the base member and the carrying member to the suitable positions.Type: GrantFiled: December 4, 2006Date of Patent: November 27, 2007Inventor: Hsing Chao Liu
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Patent number: 6962468Abstract: A tool assembly includes a support body, a clamping device, and a tool holder clamped in a groove of the support body. A stopper block is disposed in the groove and abuts against the tool holder for positioning the tool holder along an axis. The stopper block is held in place by a wedge-type stopper clamp which applies a clamping force to the stopper block in a direction transversely of the axis. A wedge-type holder clamp is provided for applying a clamping force to the tool holder in a direction transversely of the axis. The stopper clamp is secured to the support body by a single fastening bolt, and the holder clamp is attached to the support body by a single fastening bolt. Each of the fastening bolts is provided with a part that forcefully pushes the respective clamp away from the support body in response to loosening of the fastening bolt. The arrangement is such that the tool holder can be inserted and removed without completely removing the holder clamp or its fastening bolt.Type: GrantFiled: October 21, 2003Date of Patent: November 8, 2005Assignee: Sandvik ABInventor: Akio Shiraiwa
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Patent number: 6955106Abstract: A thread making device that has a thread form with controlled height adjustment. The thread making device is formed from a threading cartridge mounted on a threading bar. A thread form with a cutting edge is secured in a pocket on the threading cartridge bounded on one side by an adjustable height clamp, whose position relative to the threading cartridge is controlled by serrated faces on the adjustable height clamp and the threading cartridge. The thread form has a thickness extending in a wear direction, and the serrations of the serrated faces allow height adjustment of the adjustable height clamp in the wear direction.Type: GrantFiled: February 6, 2004Date of Patent: October 18, 2005Inventor: Thomas A. M. Hallett
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Patent number: 6872033Abstract: A turning tool includes a holder and an cutting insert clamped to the holder. The insert and the holder include respective support surfaces pressed against one another. Each of those support surfaces includes first and second sets of ridges oriented substantially perpendicular to one another. The ridges on the insert's support surface engage respective ridges on the holders support surface to prevent movement of the insert relative to the holder in two directions oriented perpendicularly to one another. At least one of the first and second support surfaces has its first and second sets of ridges arranged in respective first and second regions of that support surface. The other support surface could have its sets of ridges arranged in a similar fashion, or its sets of ridges could occupy the same region of the support surface to form a waffle pattern.Type: GrantFiled: May 20, 2002Date of Patent: March 29, 2005Assignee: Seco Tools ABInventor: Christer Rydberg
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Patent number: 6834692Abstract: A tip for a rotary debarker has a polygonal main body with a front surface and a rear surface, and at least one cutting blade along each of the opposed edges. The main body includes a non-circular mounting boss extending from the rear surface. The main body is mounted to a tip holder that has a non-circular seat for receiving the non-circular mounting boss. The non-circular mounting boss and seat restrict relative movement between the tip and the holder during cutting operations. The tip is reversible relative to the holder to provide two operative cutting blades per tip.Type: GrantFiled: August 7, 2002Date of Patent: December 28, 2004Assignee: Lindsay Forest Products, Inc.Inventors: David J. Lindsay, Bruce Foerster
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Patent number: 6736574Abstract: An insert holder includes a head having ridge teeth, and an insert seat plate seated on the head such that ridge teeth thereof mesh with the ridge teeth of the head. The plate forms a V-shaped recess in which a cutting insert is to be received. The recess thus defines a position of support for the insert. A bisector of the V-shaped recess extends parallel to the ridge teeth. The insert seat plate is adjustable in the direction of the bisector (e.g., by individually deployable spacer plates of different thickness) to adjust the position of support defined by the V-shaped recess.Type: GrantFiled: March 15, 2002Date of Patent: May 18, 2004Assignee: Sandvik ABInventors: Conny Persson, Rolf Hagberg
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Publication number: 20040022591Abstract: The spot eliminator is a secondary metal processing tool holder used in CNC and conventional turning applications, this tool holder accommodates metal cutting inserts and various other cutting tools, all shapes and type enabling the mechanic to find the center of the part been machine regardless of machine working conditions, especially where automated machinery is the primary tool. The spot eliminator eliminates obstacle in these machinery by providing adjustability where these machine have none with conventional or unconventional tools. Unconventional meaning: unusual, homemade. The tool body consists of a guiding wedge that locates the tool holder head and aligns it for clamping, and adjusting. The tool heads are interchangeable with its body type making them unique in this regard, the tool head provides for clamping of tools and inserts. Both parts are uniquely designed to ensure smooth action and maximum strength under any working condition.Type: ApplicationFiled: June 10, 2002Publication date: February 5, 2004Inventor: Glenroy P. Wright
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Publication number: 20020131829Abstract: An insert holder includes a head having ridge teeth, and an insert seat plate seated on the head such that ridge teeth thereof mesh with the ridge teeth of the head. The plate forms a V-shaped recess in which a cutting insert is to be received. The recess thus defines a position of support for the insert. A bisector of the V-shaped recess extends parallel to the ridge teeth. The insert seat plate is adjustable in the direction of the bisector (e.g., by individually deployable spacer plates of different thickness) to adjust the position of support defined by the V-shaped recess.Type: ApplicationFiled: March 15, 2002Publication date: September 19, 2002Inventors: Conny Persson, Rolf Hagberg
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Publication number: 20020061235Abstract: The indexable cutting insert for turning is formed with a plurality of main cutting edges. Adjacent main cutting edges, which enclose an angle with one another, are connected via a cutting corner. The cutting corner has two corner sections arranged symmetrically to a bisector of the angle. The corner sections, in the region of the angle bisector, have a depression with respect to the adjacent outer contours. Compared with conventional indexable inserts, the number of corner sections that can be used independently of one another is doubled.Type: ApplicationFiled: September 25, 2001Publication date: May 23, 2002Inventor: Hans Maier
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Patent number: 6099210Abstract: A tool holder is provided for retaining a cutting tool which can be pivotally adjusted to align the cutting tool and provide a precise cut. The tool holder body has an area of reduced cross-section which serves as a fulcrum about which the cutting tool is pivotable. The tool holder body has a forward tool end for retaining a cutting tool and a rearward end operative to be mounted or retained on a lathe or other machine tool. The forward tool end can be pivotally adjusted about the fulcrum to align the cutting tool and provide an accurate, straight cut into a workpiece. A lever arm attached to the cutting tool end is adjustable to cause pivotal movement of the cutting tool by displacing the tool end laterally in response to the force of the lever arm when it is drawn toward or away from the tool holder body.Type: GrantFiled: November 16, 1998Date of Patent: August 8, 2000Assignee: Alpha Grainger Mfg., Inc.Inventor: Jacob S. Grainger
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Patent number: 5888030Abstract: The circular insert tool holder assembly for use with a circular tool post and for holding a resharpenable insert tool which has a top surface, a bottom surface, a front surface and a rear surface and having a cutting edge defined by the line formed by the intersection of the front surface and top surface of the insert tool, comprises a tool holder body, structure for rotatably mounting the tool holder body to the circular tool post, the tool holder body having a cavity therein, the cavity having an upper portion and a lower portion, the lower cavity portion being defined by an upper wall and a rear wall, and, a mechanism for retaining the insert tool within the upper cavity portion whereby the top surface of the insert tool is positioned along the upper wall of the cavity.Type: GrantFiled: July 22, 1996Date of Patent: March 30, 1999Inventor: Mark Edward Retondo
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Patent number: 5575320Abstract: The disclosure describes a cutting tool assembly for mounting unto a rotatable chip forming head. It comprises a knife holder having a base portion which is adapted to be secured peripherally to the head and a cantilevered plate portion having a lower section integral with the base portion and an upper section extending obliquely over the base portion. The cantilevered arrangement of the knife supporting plate enables the lateral ejection of chips produced from a solid piece of wood during operation so that chips do not contact successive cutting tool assemblies as the head rotates.Type: GrantFiled: January 11, 1995Date of Patent: November 19, 1996Assignee: Les Ateliers Benoit Allard, Inc.Inventor: Maurice Brisson
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Patent number: 5447395Abstract: A chamfering tool made up of a holder and a double headed blade. The holder is substantially cylindrical, with a bullet nose at one end and a turned down shank at the other end. An angularly offset bore for holding the blade penetrates the bullet nose at an angle to the holder longitudinal axis, and also penetrates the holder cylindrical wall. When the blade is installed in the bore, one or both heads externally expose their respective operating cutting edges. The blade is substantially cylindrical, with cutting edges at each end being perpendicular to and intersecting the longitudinal axis of the blade. The novel arrangement enables the chamfering tool to work in tight quarters, to be readily removed and easily sharpened, and enables both right and left handed cutting by a simple adjustment.Type: GrantFiled: March 30, 1993Date of Patent: September 5, 1995Inventor: John S. Lynch
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Patent number: 4780029Abstract: A tool holder for a numerically controlled machine tool, in which a cutting edge provided on a base member is adjustable with respect to a reference surface on the base member by adjustment means. The adjustment means comprise a U-shaped slot in the base member. This slot serves to form a pair of lever portions in the material of the base member, which lever portions are connected to each other by an area of the base member serving as a pivot. An adjustment screw threadingly engaging the base member acts upon the free end of one of said lever portions such that upon an adjusting movement of the adjustment screw the first lever portion is deflected in a predetermined direction to thereby deflect the second lever portion of the opposite direction. The second lever portion transmits its movement to the cutting edge by means of a spacing member disposed in the slot (FIG. 1).Type: GrantFiled: February 10, 1986Date of Patent: October 25, 1988Assignee: GTE Valeron CorporationInventor: Hans W. Beck
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Patent number: 4669924Abstract: A tool holder has a pocket formed therein into which a cutting insert is mounted by a clamp and fastening means. The cutting insert has a wedge shaped recess which extends from the outside surface of the insert and intersects with the upper surface along a line substantially equidistant from the outside surface. The clamp includes two leg portions, the first leg portion being retained in a recess formed in the tool holder and the second leg portion being inserted in and complementary to the wedge shaped recess of the insert. Initial and secondary restraining forces are exerted on the insert when the clamp is fastened to the tool holder.Type: GrantFiled: June 17, 1985Date of Patent: June 2, 1987Assignee: Sandvik Triangle, Inc.Inventor: Lloyd R. Benson
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Patent number: 4611516Abstract: Metal working cutting tool with a cutting insert which can be inserted in a recess of a tool shaft and fastened therein by means of a clamping jaw, whereby the cutting insert has the approximate shape of a prism with two diagonal opposite cutting edges and along one of the two lengthwise edges are adjacent cutting faces, which form an acute angle with the respective opposite principal cutting pressure and support surface, so that the angle opens towards the pressure-feed and support surface, whereby in the area of the joint lengthwise edge of the cutting face, there is incorporated in the cutting insert a continuous longitudinal groove of which one of the side walls serves as a support area for the relief-cut pressure-feed and support surface of the recess of the tool shaft, and whereas the respective other side wall forms the support surface for a recessed clamping jaw which is located in a diagonal groove of the tool shaft.Type: GrantFiled: November 23, 1984Date of Patent: September 16, 1986Assignee: Zinner GmbHInventors: Walter Hochmuth, Hans-Peter Hollfelder
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Patent number: 4545705Abstract: A tool holder has a pocket formed therein into which a cutting insert is mounted by a clamp and fastening means. The cutting insert has a wedge shaped recess which extends from the outside surface of the insert and intersects with the upper surface along a line substantially equidistant from the outside surface. The clamp includes two leg portions, the first leg portion being retained in a recess formed in the tool holder and the second leg portion being inserted in and complementary to the wedge shaped recess of the insert. Initial and secondary restraining forces are exerted on the insert when the clamp is fastened to the tool holder.Type: GrantFiled: August 23, 1983Date of Patent: October 8, 1985Assignee: Triangle Grinding Inc.Inventor: Lloyd R. Benson
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Patent number: 4530263Abstract: A holder for lathe tools having an elongated sleeve for receiving a tool shank and a plurality of shims for fixing the height of the shank in the sleeve. At least a portion of one wall of the sleeve is made of a ferromagnetic material. The holder also includes a clamping head, for clamping the sleeve onto a lathe support, that has a wall that slidably engages the sleeve wall. This clamping head wall has a magnet mounted flush within its surface for engagement with the ferromagnetic portion of the sleeve wall so as to ensure contact between the wall of the sleeve and the clamping head wall. Also disclosed is a holder spreading device for use with the holder.Type: GrantFiled: November 9, 1983Date of Patent: July 23, 1985Inventor: Bruno Muntel
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Patent number: 4227838Abstract: The invention relates to a cutting tool especially useful for cut-off, threading and grooving operations. The tool includes a massive block-like body with serrations along one or both sides. An adjustable plate with interengaging complemental serrations is mounted on the side of the body and retained by bolts which transfix the plate and anchor in the body. The plate has a top recess to receive short cutting elements backed up by a similarly shaped rod. A broached out-of-round hole is cut into the body parallel to the serrated wall to receive at one end a threaded anchor nut and at the other end a shank of a clamp bar.Type: GrantFiled: January 8, 1979Date of Patent: October 14, 1980Assignee: Fansteel Inc.Inventor: Robert W. Berry