Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7360289 | Apparatus for milling a surface The present invention provides an apparatus for use on a roof or the like which incorporates an insulation material. The invention allows workers to shave the insulating layer to smooth, remove high spots, or create slopes, valleys or sumps, in order to achieve posi... | 04/22/2008 |
| 7343656 | Multiple face three-axis CNC machine A CNC machine for automatically re-indexing and machining multiple faces of a workpiece includes a traditional three-axis CNC machine and a gripper tool. A bar stock defining a first and at least a second workpiece is loaded within a first and a second vice on the t... | 03/18/2008 |
| 7326011 | Contouring right angle head for complex machining A right angle, modular machining head can be removably mounted on the too head of a CNC machining center to provide contour machining of a work piece around a C-axis. The modular head includes a rotating drive that moves the tool around a contour axis, producing nut... | 02/05/2008 |
| 7318693 | Device for machining workpieces and machine arrangement therefor The invention relates to a device for machining workpieces, especially for chip removing machining. The device includes a spindle which is mounted on a first end of a pivoting arm in such a way that it can be linearly displaced in a direction parallel to the rotatio... | 01/15/2008 |
| 7255033 | Apparatus and method of making a compound-angled orifice in a disc for a fuel injector An apparatus and method for piercing a metering disc from a workpiece of a fuel injector. The metering disc includes first and second surfaces that extend substantially parallel to a base plane. The first and second surfaces are spaced along a longitudinal axis that... | 08/14/2007 |
| 7249918 | Cutting machine Cutting apparatus having a ram axis gear tube (32) equipped with internal threads engageable with external threads (48) of a main shaft (42). A tool can be fixed to the main shaft (42). The external threads (48) of the main shaft (... | 07/31/2007 |
| 7220088 | Toolhead for multi-axis machine tools A toolhead for use on a multi-axis machine tool consists of a support assembly equipped with a pivoting spindle designed to accept a removable tool-holder, and centered on a machining axis about which a tool clamped to the tool-holder can be driven in rotation. Also... | 05/22/2007 |
| 7172105 | Apparatus for positioning pipe and tubing A counterweight assembly is especially adapted for mounting to a spinner tool allowing a workpiece to be balanced when rotated during welding or other operations. The counterweight assembly has an adjustable counterweight to provide a necessary amount of counterbala... | 02/06/2007 |
| 7128507 | Machine tool The present invention provides a machine tool capable of achieving a higher feed rate of a spindle and weight reduction while ensuring necessary stiffness of a column. The present invention includes: a bed; a saddle disposed on the bed to be movable in a Y-axis dire... | 10/31/2006 |
| 7037052 | Spindle unit of machine tool A column (4) is provided with a hanging jig (holding mechanism) (50) for holding an unclamping apparatus (30) and a spindle head (15) is made to be able to move in an up and down direction by itself by removing a bolt (43) in a sta... | 05/02/2006 |
| 6968768 | Slitting saw The disclosure describes a slitting saw used to cut an opening in a pipe. The saw generally comprises a housing mounted on an XYZ positioning system, a drive assembly and a cutting blade. A motor is used to drive a gear train which creates rotating of the cutting bl... | 11/29/2005 |
| 6944923 | Machining unit for a program-controlled milling and drilling machine A machining unit for a program-controlled milling and drilling machine. A head support movable in several coordinate axes has an axis of rotation pointing forward and downward at a 45° angle. A swivel head arranged on a front side of the head support is rotatable a... | 09/20/2005 |
| 6926094 | Apparatus for manufacturing operations using non-contact position sensing Apparatus and methods for manufacturing operations using non-contact position sensing are disclosed. In one embodiment, an apparatus includes a track assembly adapted to be attached to a workpiece, a carriage assembly moveably coupled to the track assembly and movea... | 08/09/2005 |
| 6918326 | Vertical lathe There is provided a vertical lathe which, when machining gradually varying lens grooves in a mold for molding of a Fresnel lens, can change the angle of a cutting tool without positional displacement of the cutting tip, enabling high accuracy machining of the gradua... | 07/19/2005 |
| 6877938 | Machine-tool in particular with parallel architecture accommodating deformed articulations The invention concerns a very high-speed machining machine-tool (M) consisting of a parallel structure including link bars (100) whereof one first end (110) is linked to a mobile member (200) supporting at least a tool and whereof the second end... | 04/12/2005 |
| 6874213 | Machine tool and method for machining a rod-shaped workpiece The invention relates to a machine tool for machining a rod-shaped workpiece. The machine tool comprises a tool spindle, and also a first holder and a second holder for accommodating the workpiece. In a machining position, the second holder is oriented coaxially to ... | 04/05/2005 |
| 6869259 | Milling method A milling method is provided for the manufacture of components composed of difficult-to-cut materials for turbomachines, aircraft and spacecraft by producing recesses with one or more side walls. An end milling cutter which cuts at the circumference and at the tip a... | 03/22/2005 |
| 6832880 | Operating head for automatic machine tools, with projecting interchangeable chuck unit An operating head for automatic machine tools of the type mounted on a structure for moving along a set of three Cartesian axes having a first support, fitted to the structure for rotation around a first axis, and a chuck unit fitted to the first support, wherein th... | 12/21/2004 |
| 6786686 | Numerically controlled machine tool A numerically controlled machine tool is disclosed including a spindle support structure for moving the spindle having a tool mounted thereon in directions along an X-axis, a Y-axis and a Z-axis, a workpiece support structure having an indexing workpiece mounting ta... | 09/07/2004 |
| 6719506 | Gantry type hybrid parallel linkage five-axis machine tool Disclosed herein is a gantry type hybrid parallel linkage five-axis machine tool composed of a machine framework a parallel spatial linkage mechanism, a feeding shaft mechanism, and a controller unit. The parallel spatial linkage mechanism is formed of three straigh... | 04/13/2004 |
| 6682278 | Universal combined milling and boring machine A relatively compact, program-controlled, universal combined milling and boring machine having a horizontal base as a support for a work table, a machine frame and a supporting system for at least one spindle head. The spindle head contains a dimensionall... | 01/27/2004 |
| 6557235 | Bi-axial coplanar apparatus An apparatus comprising a frame, a mobile platform and first and second linearly-actuated slides supported on a base connected to the frame. The first and second slides are movable along a line defining a first axis. The apparatus may include a first driv... | 05/06/2003 |
| 6554551 | Head for machine tool The present invention describes a head for machine tool on which an electro-spindle is mounted and in particular it describes a tilting head for machine tool on which an electro-spindle is mounted. In one embodiment the invention comprises a tilting head ... | 04/29/2003 |
| 6540458 | Machine-tool milling center The invention relates to a machine-tool, especially a milling center, comprising a housing (2), a holder (54) for tools and/or workpieces, a coupling guide departing from the housing (2) to guide the holder (54) and a drive device departing from the housi... | 04/01/2003 |
| 6540454 | Spindle head positional error correction method for multi-axis machine tool In a multi-axis machine tool (M) including an angular dividing head (HD) having a spindle head (9) mounted thereto, the positional correction includes determining an error representative vector componentwise representative of a plurality of positional err... | 04/01/2003 |
| 6526638 | Device for producing relative motion with two translational degrees of freedom A device for producing relative motion with two translational degrees of freedom between a spindle means (95, 195, 295 395) with a spindle which bears the first part of a first pair of parts formed from a workpiece and a tool, and a retaining element for ... | 03/04/2003 |
| 6503033 | Parallel mechanism structure for controlling three-dimensional position and orientation Disclosed is a parallel mechanism structure for controlling three-dimensional position and orientation. In the parallel mechanism structure according to the present invention, three links are connected to the main spindle of the mechanism and driven in ve... | 01/07/2003 |
| 6473951 | Spindle device for machine tools A spindle device for machine tools that can eliminate the need for laborious air bleeding work and labor-demanding fitting/removing work for maintenance. The spindle device for machine tools includes a drawbar that is axially movably inserted into an axia... | 11/05/2002 |
| 6447224 | Machine tool with pivotal spindle head A spindle head holder (5) is pivoted on a base member (1), a linear drive (21) is mounted to the base member (1), a linear guide (50) is mounted to the spindle head holder (5), and an engagement member (60) is engaged with both linear drive and linear gui... | 09/10/2002 |
| 6442815 | Reconfigurable automatic tool changer A reconfigurable tool changer allows a tool cartridge to be easily attached to, or detached from, a standard machine-tool spindle head. The modular design, includes a revolving tool cartridge having a plurality of tool holders, a meshing gear for engaging... | 09/03/2002 |
| 6431802 | Articulated tool head A universal-joint tool head, having a tool platform which can move in three axes, at least three connecting rods which are articulatedly mounted on the tool platform and can be displaced independently of one another, at least three linear-movement drives,... | 08/13/2002 |
| 6428253 | Device for fastening a tool on a driveable tool spindle of a machine tool in a progressively adjustable manner The invention concerns a device for infinitely variable support of a tool on a drivable tool spindle of a machine tool. To provide such a device which allows exact adjustment of the tool within a range of one millimetre, at the same time avoiding centrifu... | 08/06/2002 |
| 6387026 | Machine tool with a tool spindle operating from below A machine tool has a workpiece table for fixing workpieces to be machined and a tool spindle for receiving in a fixture the tools used for machining the workpieces. The machine tool works with an overhead tool pointing upwards in the operating condition.... | 05/14/2002 |
| 6367135 | Device for producing relative motion with two translational degrees of freedom A device for producing relative motion with two translational degrees of freedom between a spindle means (95, 195, 295, 395) with a spindle which bears the first part of a first pair of parts formed from a workpiece and a tool, and a retaining element for... | 04/09/2002 |
| 6352496 | High-speed milling machine with rotary table A milling machine includes a bi-directional, variable speed, rotary workpiece-holding table, a table drive sized to achieve relatively high acceleration and deceleration rates, a cutting tool mounted to a single or dual axis head, and a control system ada... | 03/05/2002 |
| 6336778 | Orthogonal axes module with parallel kinematic movement Module with parallel kinematic movement and orthogonal axes, characterised because it has a fixed structure; and a passive structure that has at least one kinematic shears joined at one end to the fixed structure and at the other end to a flat mobile stru... | 01/08/2002 |
| 6203254 | Parallel mechanism machining device The present invention is designed to realize structure having high rigidity in any direction and to realize a parallel mechanism machining device having good chip removal property. According to the present invention, forked adjustable joints 28 are provid... | 03/20/2001 |
| 6161992 | Machining system with movable tool head A machining system has a frame forming a working station and a mounting plate movable relative to the frame in and adjacent the station in a first main direction, in a second direction transverse to the main direction, and in a third direction transverse ... | 12/19/2000 |
| 6155759 | Apparatus for milling the surface of a low slope substrate An apparatus for milling the surface of low slope substrate has a milling device, such as a saw, and a track along which the milling device may move. The track is supported above the substrate by a plurality of adjustable supports which have adjustment me... | 12/05/2000 |
| 6138372 | Router guide apparatus The present invention provides a guide apparatus for use with a portable router, for enabling the router to rout an edge of a workpiece at virtually any angle between 0° and 90°. The guide apparatus comprises: a main body for receiving a router base and... | 10/31/2000 |
