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| Number | Title | Issue Date |
| 8087857 | Method and apparatus for machining work pieces A method and apparatus are provided to machine a curved surface such as an inner or outer peripheral surface of a pipe. The pipe is held stationary during machining and a rotatable spindle of a machine head moves along multiple orthogonal axes to align the rotationa... | 01/03/2012 |
| 7419339 | Drill thread milling cutter The invention relates to a drill thread milling cutter (1) for producing a bore and for the subsequent milling of a thread in the bore, said drill thread milling cutter (1) having a working region (2), on the circumference (3) of which a ... | 09/02/2008 |
| 7377732 | Thread mill having flute twisting in direction opposite to rotating direction A thread mill that is to be moved along a helical interpolation path while being rotated about an axis of the thread mill in a rotating direction, for forming a thread in a circumferential surface of a workpiece. The thread mill includes a cylindrical main body havi... | 05/27/2008 |
| 7347652 | Method for milling grooves in bored workpieces A numerical control unit issues a sequence of instructions for causing a spindle of a cutter disk in a tool machine to perform successive straight displacements approximating a spiral of Archimedes, with a predetermined angle step from one point to the next, and iss... | 03/25/2008 |
| 7340923 | Pressing plunger mechanism for a glassware forming machine A pressing plunger mechanism for a glassware forming machine has at least one pressing plunger which in normal operation can be moved axially in a reciprocating manner together with a pressing plunger receiver between an inoperative position and a pressing position.... | 03/11/2008 |
| 7278806 | Two edge deburring tool A rotating tool for simultaneously deburring two surfaces of a workpiece is disclosed including a rotatable shaft having a first end and a second end with a first deburr surface on the first end facing towards the second end and having a first angle. A second deburr... | 10/09/2007 |
| 7275898 | Threading tap for cutting threads in blind holes and methods of its manufacture A threading tap for cutting threads in blind holes includes an elongated body with a central axis, the body having at a rear end a connector portion, and having at a front end a threading portion. The threading portion is provided with at least one helical thread-cu... | 10/02/2007 |
| 7241088 | Threading tap for cutting threads in blind holes and methods of its manufacture A threading tap for cutting threads in blind holes includes an elongated body with a central axis, the body having at a rear end a connector portion, and having at a front end a threading portion. The threading portion is provided with at least one helical thread-cu... | 07/10/2007 |
| 7226250 | Tool and method for forming a lug hole A single tool that provides multiple machining operations for forming a lug hole through a vehicle wheel hub includes an end portion having a first diameter and a mid-portion having a second diameter that is greater than the first diameter. A spade drill bit is moun... | 06/05/2007 |
| 7198436 | Multi-blade router tool, edger with multi-blade router tool, and method of edging eyeglass lenses The present invention relates to a router tool for edging the peripheral edge of eyeglass lenses. The tool comprises a longitudinally extending body rotatable on the axis thereof. A first blade extends axially and radially from the body, and has a first cutting port... | 04/03/2007 |
| 7192224 | Drilling tool A double or multiple-edged drilling tool has a base body rotatable about a drilling axis, and at least two plate seats arranged on the front face for accommodating identical interchangeable cutting plates. The cutting plates each have a machining face, and a clearan... | 03/20/2007 |
| 7189038 | Orbital machining apparatus with drive element with drive pins An orbital machining apparatus for producing a workpiece hole with a cutting tool, including: a first actuator for rotating the tool about its longitudinal center axis during the machining of the hole; a second actuator for moving the tool in an axial feed direction... | 03/13/2007 |
| 7114891 | Thread forming tool with annular ridge A thread forming tool includes an elongated body defining a longitudinal center axis. The body including a thread forming portion formed by one or more annular ridges oriented perpendicular to the axis. The body has a non-circular shape in a cross sectional plane or... | 10/03/2006 |
| 7112143 | Thread former or tap Cold thread forming tap or screw tap with a shaft, said shaft having a chuck portion at the one end and a forming or cutting profile portion on the other end, the forming or cutting profile portion being realised as a separate profile element and being fixable centr... | 09/26/2006 |
| 7107664 | Screw thread cutting apparatus and method A thread cutting milling tool comprises a shank with a working portion formed with a recess for receiving a thread cutting insert. The thread cutting insert has one edge formed with a line of thread-form teeth of identical profile. The thread cutting teeth project l... | 09/19/2006 |
| 7094010 | Thread milling cutter, holder and a method for milling an external thread on a spigot The present invention relates to a thread milling cutter, which includes a cutting head, having a holder with a number of cutting insert pockets, a number of threading inserts, which are received in the cutting insert pockets and an attachment integrated with the cu... | 08/22/2006 |
| 7077867 | Prosthetic knee joint having at least one diamond articulation surface Prosthetic joints, components for prosthetic joints, superhard bearing and articulation surfaces, diamond bearing and articulation surfaces, substrate surface topographical features, materials for making joints, bearing and articulation surfaces, and methods for man... | 07/18/2006 |
| 7044692 | Screw thread cutting apparatus and method A thread cutting milling tool comprises a shank with a working portion formed with a recess for receiving a thread cutting insert. The thread cutting insert has one edge formed with a line of thread-form teeth of identical profile. The thread cutting teeth project l... | 05/16/2006 |
| 7018143 | Reduced energy consuming, lateral cutting twist drill A modified prior art twist drill embodies structural features that require less energy to drill a hole during a normal plunge operation and allow for lateral cutting movement during extraction of the twist drill from a drilled work piece. ... | 03/28/2006 |
| 7001113 | Variable helix cutting tools Tools, including end mills, include a flute having a helix which varies along the length of the tool. The invention is not limited in terms of the number of flutes, whether odd or even; helix change(s) within a flute or between flutes; or indexing between cutting ed... | 02/21/2006 |
| 6929435 | Contour plunge milling A plunge milling system (10) for effecting rapid removal of material from a workpiece during a rough and/or finishing cutting procedure. In this system, an axial cutting tool (12) is rotated about its axis and axially moved into engagement with the wor... | 08/16/2005 |
| 6877934 | Milling head for thread whirling A milling head for thread whirling, the milling head includes a plurality of cutting elements evenly disposed around a center hole, each cutting element in the plurality of cutting elements includes at least two cutting surfaces formed thereon. Any one of the at lea... | 04/12/2005 |
| 6840722 | Machining apparatus and machining method A machining apparatus for machining a workpiece by rotating and revolving either the workpiece or a tool 1 to contact with each other. The machining apparatus comprises rotation/revolution ratio setting motors M1 and M3 for setting a ratio of a ... | 01/11/2005 |
| 6773211 | Orbital drilling cutting tool A method and cutting tool for producing a hole or a recess in a workpiece which includes flat or curved sheets of fiber-reinforced composite material, metal or combinations thereof. The cutting tool has a shaft with a longitudinal axis and an axial cutting surface a... | 08/10/2004 |
| 6719505 | Orbital hand tool apparatus for drilling A hand tool apparatus uses a cutting tool with a first width and a tool axis to machine a hole in an object. The hole has a second width at least as large as the first width of the cutting tool. The apparatus includes a housing, a spindle unit in the housing for rot... | 04/13/2004 |
| 6663327 | Numerically controlled orbital machining apparatus An orbital machining apparatus for producing a hole in a workpiece using a cutting tool and including a first actuator for rotating the cutting tool about its longitudinal center axis, a second actuator for moving the cutting tool in an axial feed directi... | 12/16/2003 |
| 6663326 | Cutting tip and manufacturing method thereof A cutting tip having a three-layer laminated structure is provided. The tip is made from a disc-shaped three-layer laminate wherein a second layer consisting of a hard sintered compact of CBN or diamond is sandwiched by a first layer and a third layer con... | 12/16/2003 |
| 6345941 | Thread milling tool having helical flutes A thread milling tool includes a proximal shank portion and a distal cutting portion. The cutting portion includes at least one thread milling tooth and at least one flute oriented helically, or spirally, about a rotational axis of the tool. The helix ang... | 02/12/2002 |
| 6293740 | Threading tool The invention involves a threading tool (20) for defining an internal thread within walls (62) of a cavity (64) within a workpiece having a floor (66) around an axially disposed protuberance (68) with a top (70) extending from the floor (66). The threadin... | 09/25/2001 |
| 6257810 | Milling tool for thread-milling and boring of high-strength workpieces A milling tool for thread-milling and boring has a milling region with thread-milling cutters disposed on thread-milling teeth, and bore-milling cutters disposed on an end face. The tool regions where the milling cutters are disposed are made of hard mate... | 07/10/2001 |
| 6200078 | Complex cutting-blade tool and machining method using same A complex cutting-blade tool wherein a neck having a smaller diameter than the diameter of the drill thereof is connected to a shank. At the place where the drill and the neck are connected is provided a burr removal cutting blade inclined roughly 45° fr... | 03/13/2001 |
| 6183175 | Steerable toolholder A tool holder for a tool drive with an outer and an inner concentric drive shaft. A first adapter is detachably held by a conventional clamping system in a receptacle of the outside drive shaft. A second adapter is concentrically mounted in the first tool... | 02/06/2001 |
| 6155756 | Thread forming machine for bone material A machine for forming threads in a cylindrical bone dowel made of bone material, comprising a planar surfaced base provided with a threaded guide member having an externally threaded portion. A holding and rotating assembly is mounted on the base to rotat... | 12/05/2000 |
| 6081980 | Ecliptic drive A drive apparatus for a simultaneous operation machine includes a plurality of pulleys and drive belts in a unique orientation to simultaneously drive a plurality of spindles. A first outer spindle is driven about a first axis of rotation to perform a fir... | 07/04/2000 |
| 6042308 | Thread milling cutter with positioned tooth flanks A thread milling cutter including a shank and a milling region adjoining the shank at a front end of the shank and including at least two rows of teeth and extending parallel to each other, with the teeth of both rows having the same height and forming ea... | 03/28/2000 |
| 6012882 | Combined hole making, threading, and chamfering tool with staggered thread cutting teeth Solid tungsten carbide is the popular material for these combinations tools. High resultant side forces on the tool during the thread milling phase are caused by relatively high circumferential engagement of the tool and a very low feed per tooth (chip th... | 01/11/2000 |
| 5944462 | Hole cutting tool for chamfering and grooving A hole cutting tool for holemaking, chamfering, grooving, threading and/or O-ring grooving. The tool is a rotary tool for holemaking in a workpiece which includes one or more holemaking inserts about the outermost end of the tool, at least a pair of axial... | 08/31/1999 |
| 5733078 | Drilling and threading tool A drilling and thread-milling tool for generating an internal thread in a workpiece, including a proximal shank portion attachable to a driving device for rotating the tool about a rotation axis thereof, and a distal cutting portion rotated with the shank... | 03/31/1998 |
| 5678962 | Integral boring and threading tool and method A unitary bore forming and threading tool for producing a variety threaded bores having chamfers and counterbores without a need for tool changes. The improved took preferably includes a shaft of predetermined axial length and having proximal and distal e... | 10/21/1997 |
| 5429459 | Method of and apparatus for thread mill drilling A threaded hole (20) in a workpiece (22) is formed by rapidly spinning an elongated tool (24) having a drill point (64) at one end, at least one longitudinally extending flute (80) having thread milling faces (84) for milling the thread to be formed, and ... | 07/04/1995 |
