Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7698816 | Method of making a pinion meshing with a given face gear in accordance with altered design parameters A method of defining a new pinion for use with a given face gear set. Tooth geometry of the new pinion is generated by a plane taking the given face gear set as reference and maintaining true conjugate actions among the original pinion, the face gear, the new pinion... | 04/20/2010 |
| 7631428 | Rack and pinion steering apparatus and method of manufacturing rack shaft A rack and pinion steering apparatus which does not need quenching of the rack shaft after gear cutting of the rack shaft in manufacturing processes is provided. The rack and pinion steering apparatus comprises a pinion shaft and a rack shaft meshing with the pinion... | 12/15/2009 |
| 7624505 | Deburring by hobbing with integrated secondary deburring without a smoothing tool The invention relates to a method for tooth-machining of workpieces (3), especially gear wheels, comprising milling, deburring by hobbing and integrated secondary deburring. The method proceeds on a machine tool (1) having two workpiece spindles (11... | 12/01/2009 |
| 7574798 | Method for soft machining of bevel gears A device (10) for soft machining of bevel gears, having a receptacle (12) for receiving a bevel gear blank (K1) and having a tool spindle (13.1) for receiving a cutter head (13.2). The device comprises a machining arm (11) h... | 08/18/2009 |
| 7458157 | Method and device for fabricating a toothing at a three-dimensional body produced by forming and fine blanking A method and a tool for fabricating a toothing at a three-dimensional body produced by forming and fine blanking, especially an attachment for car seat components or the like produced out of a flat strip, wherein the flat strip by forming and fine blanking in a tool... | 12/02/2008 |
| 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 |
| 7400141 | Magnetic type angle sensor A magnetic type angle sensor includes a rotary body having a first sensed part provided on a circumferential surface thereof with projecting parts and recessed parts at equal intervals in a circumferential direction thereof and a second sensed part provided on a cir... | 07/15/2008 |
| 7310863 | De-burring apparatus for a hobbing machine The present invention provides a hobbing machine. The hobbing machine includes a clamp fixture adapted to retain a gear blank. A motor is operatively connected to the clamp fixture and is configured to rotate the clamp fixture and the gear blank together at a predet... | 12/25/2007 |
| 7261668 | Method of grinding half toroidal CVT disk A half toroidal CVT disk having an inner surface portion, an outer surface portion and a toroidal surface having a given machining allowance is centered with said inner surface portion worked prior to the heat treatment of said half toroidal CVT disk as the standard... | 08/28/2007 |
| 7246439 | Process for mechanically forming undercuts on sintered shaped parts based on iron A relatively economical process allows producing sintered shaped parts, such as sliding sleeves in motor vehicle transmissions. Open-pored undercut surfaces are formed at an internal toothing by hypocycloid milling of the part prior to its final hardening. ... | 07/24/2007 |
| 7240416 | Process for manufacturing electrically conductive components A method of forming a device, such as an electrode array for a cochlear implant. The method comprises a step of forming a predetermined pattern of relatively electrically conductive regions and relatively electrically resistive regions in a sheet of biocompatible el... | 07/10/2007 |
| 7207110 | Differential housing with integrated ring gear A method is disclosed for making a differential housing having a ring gear integrally formed therein. The method includes the steps of forging a conical frustum from a steel rod; deforming the frustum between upper and lower die halves of a tool to produce a differe... | 04/24/2007 |
| 7188420 | Method for manufacturing bevel gears A method for manufacturing a bevel gear member, comprises the steps of providing a bevel gear blank having a gearhead, forming gear teeth on the gearhead of the bevel gear blank by simultaneously cutting gear tooth top land, gear tooth side profile and a bottom land... | 03/13/2007 |
| 7103973 | Method, device, and tool for chamfering the front-end edges of the inter-teeth grooves of a gear A method for the manufacture of a toothed gear from a gear blank wherein the gear blank loaded into a machine tool and rotationally driven is machined by a hobbing cutter disposed on a rotationally driven tool shaft and the rough-hobbed gear, once produced, is subse... | 09/12/2006 |
| 7076875 | Method of manufacturing compound helical planet gears having different leads A method is provided for manufacturing a compound helically toothed planet gear for a planetary gear set wherein the individual gear elements of the compound planet gear have different leads. The method identifies and utilizes the several factors affecting gear timi... | 07/18/2006 |
| 7073249 | Method for providing a worm on an armature shaft of an electric motor, and armature produced by the method The invention relates to a method for mounting a worm on an armature shaft of an armature for an electric motor. The invention proposes first mounting armature parts, such as an armature lamination packet with armature windings, a commutator, a bearing seat, and/or ... | 07/11/2006 |
| 7036227 | Process for making ratchet wheels A process for manufacturing ratchet wheels including the steps of: forming a cylindrical forging billet by hot or cold forging, the forging billet having a thru hole of inter-communicating recesses which are pre-formed in a forging die; providing a broach having tee... | 05/02/2006 |
| 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 |
| 6941832 | Injection molded resin gear, injection molded resin rotating body, and injection molded article An injection molded resin gear 1 includes a rim 4, a hub 3 and a web 5 which connects the rim 4 to the hub 3. A plurality of ribs 7 for guiding a molten resin, which is injected from pin point gates 8, to the h... | 09/13/2005 |
| 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 |
| 6912786 | Herringbone gear teeth and method for manufacturing same A method of manufacturing herringbone gears starting with non-hardened cylindrical stock material, establishing a relief notch for each tooth in the cylindrical stock where the two helices meet, roughing the double helical teeth, and case-hardening the gear teeth. T... | 07/05/2005 |
| 6898853 | Method for manufacturing a hollow rack shaft A hollow rack shaft is manufactured through a first step, a second step and a third step. At the first step, the plate-like workpiece of substantial rectangular shape is press-formed into a gutter-like shape. At the second step, a row of rack teeth is press-formed b... | 05/31/2005 |
| 6779271 | Method for manufacturing a hollow rack shaft A hollow rack shaft is manufactured through a first step, a second step and a third step. At the first step, the plate-like workpiece of substantial rectangular shape is press formed into a gutter-like shape. The first die set used at this step is provided with slan... | 08/24/2004 |
| 6761621 | Gear and method of manufacturing gear To provide a gear having high strength and high dimension precision. A cut material is heated in an anti-oxidation atmosphere. Then, a form including gear teeth and having a nearly completed shape is formed from the upset material at one time by hot forging. The for... | 07/13/2004 |
| 6571475 | Method of chamfering and deburring gear teeth, device implementing such a method, and relative tool A method of chamfering and deburring the teeth of a gear having first teeth, each of the first teeth having a first and a second side and respective end faces; the method providing for meshing the gear with at least one tool having a ring gear meshing wit... | 06/03/2003 |
| 6497041 | Method of producing resin gear In a method of producing a resin gear, after applying a gear cutting having a gear cutting direction toward the gate forming portion onto an outer periphery surface of a resin rim layer, the gate forming portion is cut and removed.... | 12/24/2002 |
| 6449846 | Toothed gear manufacturing method A method for manufacturing a variable-diameter gear pair operable with a conjugate action therebetween includes the steps of providing a first workpiece and a second workpiece, each having a minor and a major diameter portion in spaced relation therefrom ... | 09/17/2002 |
| 6343418 | Spinning reel face gear manufacturing method A spinning reel face gear is manufactured by a method of molding tooth-ring bearing, obverse-facing gear teeth onto a separately formed gear disk after the gear disk is made. The gear disk is specially configured with circumferentially spaced peripheral i... | 02/05/2002 |
| 6324931 | Straight bevel gears with improved tooth root area geometry and method for manufacturing forging die for making thereof A method for designing root area geometry of a straight bevel gear providing reduced stress concentration and increased tooth strength. Also, a method for making a forging die for manufacturing gears having improved tooth root geometry. The method include... | 12/04/2001 |
| 6263571 | Toothed gear design and manufacturing method A method of gear design perfects design of gear teeth geometry (30) instead of limiting gear-tooth design to present cutter geometry and manufacturing methods. A pair of varied-diameter cutters (22, 29), such as hypoid cutters, have a geometric form that ... | 07/24/2001 |
| 6134786 | Method for improvement of involute and lead error in powder metal gears Gears, particularly spur gears, are produced by powder metal techniques with minimal lead line error and eccentricity, which gears are preformed from powder metal, sintered, hardened and thereafter have their involute surfaces regenerated by a hard hob wi... | 10/24/2000 |
| 6129794 | Method of manufacturing a gear wheel A method of manufacturing a gear wheel including a shaft and a tooth system. The method includes the steps of hardening and annealing the gear wheel, heating the gear wheel to an annealing temperature, spinning the gear wheel when the annealing temperatur... | 10/10/2000 |
| 6085418 | Apparatus for and method of sizing helical gears The present invention provides a tooth profile sizing apparatus and method for helical gears which are capable of shortening a cycle time for the sizing process to improve productivity and to allow production thereof at a low equipment cost. In order to a... | 07/11/2000 |
| 6026700 | Tooth form parameters for ground teeth of gear spindle coupling and method of making the same A gearset for a gear spindle coupling or the like, and method for forming the same, comprising a sleeve gear and a hub gear which may be ground after surface hardening without the introduction of undesired structural weakening. The sleeve gear includes in... | 02/22/2000 |
| 5933955 | Method of making a drive sprocket by water jet machining A method of making a robust sprocket for a tracked combat vehicle includes orming flat steel plates from stock metallurgically dissimilar to and harder than that of the track shoes, the thickness of the plates being at least 0.72 times the axial width of t... | 08/10/1999 |
| 5878493 | Method of forming toothed wheels A method for forming a toothed wheel which comprises the steps of providing a circular sheet metal blank of uniform thickness, cold forming an outer peripheral portion thereof into a thickened rim of uniform generally rectangular cross-sectioned configura... | 03/09/1999 |
| 5701671 | Method for machining a reduction or step-up gear The eccentric body shaft bearing holes, the eccentric body bearing holes and the carrier pin holding holes are set to satisfy the following relationship. Namely, when the first and second supporting blocks and the externally toothed gears are appropriatel... | 12/30/1997 |
| 5556351 | Differential apparatus A differential apparatus includes a differential casing (21) rotated by an engine drive power; pinion gears (51, 53) slidably and rotatably accommodated in accommodating holes (47, 49) formed in the differential casing (21); a pair of side gears (31, 33) ... | 09/17/1996 |
| 5507703 | Differential drive A differential drive having a differential carrier rotatably supported in a differential housing is disclosed. Two axle shaft gears are rotatably held in cylindrical bores in the differential carrier and are arranged coaxially relative to one another. A p... | 04/16/1996 |
| 5315790 | Gear tooth topological modification The topology of parallel axis gears, such as spur and helical gears is modified to produce quieter and more smoothly operating gear sets with more uniform load distribution. A finite element analysis of the gear in its operating mode is made to produce a ... | 05/31/1994 |
