Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 8137160 | Gear matching device and gear machining apparatus Provided is a gear matching device which performs gear matching to establish a rotational phase relationship between a grindstone (13) and a gear-shaped workpiece (W) in which the grindstone and the workpiece can mesh with each other, before gear machining is... | 03/20/2012 |
| 8113915 | Grinding worm, profiling gear and process for the profiling of the grinding worm A grinding worm for the continuous generation grinding of a work piece is provided with mutually overlapping rough grinding and finish grinding zones arranged along the worm's axis, the finished grinding zone being provided with a three-dimensionally modified flank ... | 02/14/2012 |
| 8087974 | Manufacturing method for worm wheel, and worm gear reducer A manufacturing method for a worm wheel, the worm wheel meshed with an operational worm at usage, has steps of preparing a worm wheel, in which at least a surface layer of a tooth portion is made of synthetic resin, preparing a machining worm, in which pitch of teet... | 01/03/2012 |
| 7527548 | System and method for precision machining of high hardness gear teeth and splines A gear shaper machine system drives and maneuvers a hone tool to generate teeth geometry in a manner the teeth were machined prior to a hardening process. After heat treatment, the hone tool is indexed to the teeth geometry spacing of the workpiece so as to divide t... | 05/05/2009 |
| 7426777 | Method of producing member having face-geared surface A method of producing a member with a face-geared surface. An example of the method includes an initial process preparing a work piece and a hob, and a geared surface forming process forming a geared surface on a part of the area. In addition, at least one of the ho... | 09/23/2008 |
| 7364391 | Manufacturing straight bevel gears A method and tool arrangement for producing straight bevel gears and the like on a multi-axis computer controlled machine wherein a single tool is utilized in the machining process. ... | 04/29/2008 |
| 7341501 | Gear grinding machine, method for dressing threaded grinding wheel and method for grinding work A gear grinding machine, a method for dressing a threaded grinding wheel, and a method for grinding a work are disclosed. A dressing tool is rotated in a vertical plane, with its position being fixed. The position of a threaded grinding wheel is NC-controlled, where... | 03/11/2008 |
| 7335091 | Methods and apparatus for machining a coupling A method facilitates fabricating a coupling including a first annular coupling member and a second annular coupling member. The method comprises coupling the first coupling member to a machine assembly that includes a plurality of grinding wheels coupled to a tool s... | 02/26/2008 |
| 7294046 | Method for dressing a grinding worm A method for dressing an essentially cylindrical grinding worm on a machine suitable for continuous generation grinding in the diagonal method. The dressing tool is an essentially cylindrical gear wheel, having an abrasive coating on the surface that effects the dre... | 11/13/2007 |
| 7237989 | Milling method used for producing structural components A milling method is for producing milled structural components of materials that are difficult to machine by chip-cutting. A milling tool with a tool radius is rotationally driven about an axis of the milling tool to ensure a central rotation thereof, whereby a refe... | 07/03/2007 |
| 7207867 | Precision cemented carbide threading tap A precision cemented carbide threading tap is designed for use in precision tool holders in synchronous high speed tapping. The precision tap includes a fully cylindrical shank without the aid of squares, flats or other notches. The precision tap further includes a ... | 04/24/2007 |
| 7204243 | Truing tool for truing a grinding worm A truing tool for truing an essentially cylindrical grinding worm that is arranged on the tool spindle of a machine suitable for the continuous generation grinding in the tangential- and diagonal process. The truing tool comprises an essentially cylindrical gear whe... | 04/17/2007 |
| 7198543 | Gear grinding machine A gear grinding machine comprises: a moving mechanism rotatably mounted with a threaded grinding wheel, and arranged to move the threaded grinding wheel along directions of X, Z, and Y, and to turn the threaded grinding wheel in a Y-Z plane; an NC device for control... | 04/03/2007 |
| 7191521 | Advanced geometry of skew and straight bevel gears produced by forging The present invention provides for bevel gears having a localized and stable bearing contact. The localization of bearing contact is achieved by substitution of flat tooth surfaces with parabolic tooth surfaces. This is accomplished by either modifying line-contact ... | 03/20/2007 |
| 7178420 | Ring gear A ring gear includes teeth (10) and tooth gaps (12), in which the teeth (10) can be brought vie tooth flanks (14) into engagement with a corresponding pinion. The tooth flanks (14), after a final engagement point (16) of the... | 02/20/2007 |
| 7179025 | Machine and method with 7 axes for CNC-controlled machining, particularly generating cutting or grinding; of spiral bevel gears On a CNC machine for machining spiral bevel gears the axis (T) of a tool spindle forms a fixed, non-adjustable tilt angle (κ) against an orientation axis (O) for all bevel gears to be machined. The tool spindle is adapted to be continuously swiveled about the orien... | 02/20/2007 |
| 7172495 | Method and apparatus using a sensor for finish-machining teeth Teeth of a workpiece of a workpiece are finish-machined by first gauging shapes of the workpiece teeth and generating actual-value signals corresponding thereto. These actual-value signals are compared to set points representing desired tooth shapes, and the teeth o... | 02/06/2007 |
| 7169023 | Method and apparatus for manufacturing hourglass worm rolling die An apparatus manufactures a die for rolling an hourglass worm in improved processing accuracy. The apparatus includes a swing table swung, a movement table mounted on the swing table, and a workpiece shaft arranged on the movement table. The axis of a disk-shaped wo... | 01/30/2007 |
| 7156718 | Generating method and machine for spiral bevel gears In a method and apparatus for machining spiral bevel gears a rotationally symmetric tool is driven about its axis of rotation as it is moved, along with a workpiece, into a respective initial starting position. The workpiece is rotated about one tooth index, and a c... | 01/02/2007 |
| 7153183 | Method and apparatus for lapping gears A method for lapping the gears of a gear set as well as a gear lapping system. The gear set generally includes a first gear in meshed engagement with a second gear, each of the first and second gears having a plurality of gear teeth each with drive and coast flank s... | 12/26/2006 |
| 7137869 | Manufacturing cell for the treatment of grinding and wheel set testing and procedures for the operation of the manufacturing cell A manufacturing cell for the treatment of grinding of gear wheel flanks, in particular by bevel pinions, and suggested for the wheel set testing, which includes a grinding machine (1), an unreeling test equipment (2), a laser inscription unit (3... | 11/21/2006 |
| 7121930 | Process and dressing tool for the dressing of cylindrical grinding worms for the continuous generation grinding of gears A rotating dressing tool (2) coated with abrasive grains for profiling a multi-start grinding worm (4) for the continuous generation grinding of preferably small moduled gear teeth is provided with a stripping zone (6), a pre-profiling zone (... | 10/17/2006 |
| 7118460 | Finishing method for stepping motor stator stack and rotor stack A stepping motor stator stack and rotor stack finishing method whereby the burrs remaining on the small tooth surfaces of the stacks can be eliminated and prevented from lodging in the spaces between laminations of a plurality of stacked steel plates, without causin... | 10/10/2006 |
| 7118462 | Disk for toroidal continuously variable transmission and method of machining the same A method of machining a disk for a toroidal-type continuously variable transmission, has the steps of fixing a disk to a core bar having a pair of reference portions for rotation at both end thereof, clamping the reference portions by a first center and a second cen... | 10/10/2006 |
| 7118459 | Dressing tool for profiling the tip area of a threaded grinding wheel A dressing tool for profiling the tip area of a threaded grinding wheel used for continuous generation grinding. Concave working faces (13) are arranged in a cylindrical surface of the dressing tool (7) and coated with an abrasive coating. The pitch (P... | 10/10/2006 |
| 7114895 | Machine tool provided with cooling mechanism A spindle motor as a heating element and a spindle head having a spindle that is driven by the spindle motor are coupled to each other by a cooling flange. The cooling flange is provided with a cooling passage, the cross-sectional area of which gradually increases w... | 10/03/2006 |
| 7104870 | Modified radial motion (MRM) method for modifying lengthwise curvature of face-milling spiral bevel and hypoid gears The present invention relates to a modified radial motion method for modifying lengthwise curvature of face-milling spiral bevel and hypoid gears, which is capable of modifying a locus of a cutter center into a curve, without changing a head cutter's geometry, by pr... | 09/12/2006 |
| 7083496 | Gear grinding machine To correct the tooth profile error of a ground gear, the wheel angle of a threaded grinding wheel is modified by dressing the threaded grinding wheel by a dressing device. To correct the helix form deviation of a ground gear, namely, to modify the helix angle of the... | 08/01/2006 |
| 7052379 | Methods and apparatus for machining a coupling A method facilitates fabricating a coupling including a first annular coupling member and a second annular coupling member. The method comprises coupling the first coupling member to a machine assembly that includes a plurality of grinding wheels coupled to a tool s... | 05/30/2006 |
| 7044691 | Forming method for milling threads of variable tooth worms A forming method for milling teeth of variable tooth worms (VTW) with the following features: on a multi-axis simultaneously-working CNC machine-tool a moving coordinate system {σ1(φ1)[O1;{right arrow over (i)}1(φ1... | 05/16/2006 |
| 7004826 | Device for smoothing gear wheels An apparatus for smoothing gear wheels has a single smoothing wheel and two further smoothing wheels opposite the single smoothing wheel. A clamping device for axially clamping the gearwheel to be smoothed can oscillate in a direction perpendicular to its rotation. ... | 02/28/2006 |
| 7000444 | Forging method and apparatus A method of producing a bevel gear, particularly a bevel ring gear, the bevel gear comprising mounting surfaces. The method comprising the steps of flashless warm forging a blank, preferably an annular blank, in a forging die to produce the bevel gear with precision... | 02/21/2006 |
| 6991522 | Method of manufacturing asymmetric gear, asymmetric gear, non-circular and asymmetric gear, gear mechanism, and barrel finishing machine An object of the present invention is to provide a practical gear and gear train which can be used in an actual gear drive system. Another object of the present invention is to provide a non-circular and asymmetrical gear which is practically used in view of durabil... | 01/31/2006 |
| 6979247 | Method and apparatus for grinding cam with re-entrant surface A workpiece W and a grinding wheel G are relatively moved in Z and X-axis directions perpendicular to each other, the rotational axis of the grinding wheel is inclined relative to the X-axis, and the grinding wheel is composed of a taper section Ga having a generati... | 12/27/2005 |
| 6958000 | Finishing wheel holding mechanism for gear finishing apparatus A finishing wheel holding mechanism for a gear finishing apparatus using a finishing wheel having internal teeth, which permits simple and quick fitting or replacement of a finishing wheel is provided. The finishing wheel holding mechanism comprises a head frame ... | 10/25/2005 |
| 6951501 | Method for forming a grinding worm for forming a conical face gear that meshes with a conical involute pinion A method for dressing a grinding worm that is to be used in forming a conical face gear that meshingly engages a conical involute pinion. The method employs true conjugate action between a theoretical conical involute pinion and a conical face gear to accurately pos... | 10/04/2005 |
| 6942547 | Finishing method for stepping motor stator stack and rotor stack A stepping motor stator stack and rotor stack finishing method whereby the burrs remaining on the small tooth surfaces of the stacks can be eliminated and prevented from lodging in the spaces between laminations of a plurality of stacked steel plates, without causin... | 09/13/2005 |
| 6939214 | Honing wheel having internal gearing The cross-sectional profile of the outer peripheral surface of a honing wheel is within a spherical enveloping surface that is concentric with the honing wheel. Due to the cross-sectional profile of the outer peripheral surface of the honing wheel, tilting in the op... | 09/06/2005 |
| 6923712 | Method and apparatus for grinding rotors for hydraulic motors and apparatus therefor A fixture for selectively locating and retaining hydraulic gerotor rotors in position in respect to a grinding wheel, the fixture clamping the rotor between two oversized positioning rolls located in rotor lobe valleys on opposite sides of the rotor. ... | 08/02/2005 |
| 6918181 | Gear tooth topological modification for reducing noise and vibration in transmission systems A method for improving acoustic and vibrational properties of gears includes determining the transmission errors of intermeshing gears due to stiffness variations in the gear teeth, performing Gear Tooth Topological (GTT) modifications to compensate for the errors, ... | 07/19/2005 |
