Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7434443 | Compound press-forming apparatus and compound press-forming method An upper die 7 that is fixed to a ram 4d of a press machine 1 includes a forming punch 9 for conducting drawing, forming and listing, upper die-side cutting edges 13a for conducting trimming, and flat-face piercing pu... | 10/14/2008 |
| 7363795 | Guided punching apparatus A male die is adapted to be opposed to a first face of a metallic plate member. The male die includes a plurality of punches which are provided on the male die and arranged side by side in a first direction with a fixed pitch. A guide member is formed with a guide f... | 04/29/2008 |
| 7334447 | Nacelle nose cap forming method and apparatus A method and apparatus for draw forming a flat sheet blank into a 3-dimensional-nacelle nose cap for an aircraft engine in two stages; the blank having an outer annular portion and an inner annular portion. Draw forming the inner annular portion into a shape of an a... | 02/26/2008 |
| 7322091 | Vibration isolating bushing and its manufacturing method This invention relates to a vibration isolating bushing, for example, built into a suspension system, an inside diameter of one edge (4) of an inner cylinder (1) being made larger than that of the other edge (6). The outside diameter of the thin... | 01/29/2008 |
| 7313942 | Forging machine for the upsetting of deformed reinforcement bars Forging machine for the cold forging of deformed steel bars includes upsetting and clamping dies housed in the same casing. The dies bear a continuous cavity so as to enable forging of long products. ... | 01/01/2008 |
| 7308814 | Method for perforating a sheet A method for perforating a sheet (1) with the aid of a stamp (3) and a matrix (2) is described, the sheet (1) being elongated before the hole punching in accordance with the setpoint diameter in the hole boundary area through bulging of t... | 12/18/2007 |
| 7269989 | Method of using a tool to form angled orifices in a metering orifice disc A method of using a tool for punching orifice that has wall surfaces extending at an angle relative to a generally planar surface of a workpiece. The method includes sequentially forming two spaced apart impressions formed in the workpiece between first and second g... | 09/18/2007 |
| 7266985 | Method of processing metal parts by blanking A method of processing metal parts and the like by blanking includes the steps of performing a first blanking step on a semi-finished product in order to produce a blanked semi-finished product, and performing a subsequent processing of the blanked semi-finished pro... | 09/11/2007 |
| 7260970 | Hot forge forming facility A hot forge forming facility includes at least a material supply device, a heating device, a guiding device and a punching device. The material supply device carries a continuous supply of metal material in rolls. The heating device heats and softens the metal mater... | 08/28/2007 |
| 7249546 | Die-shaping apparatus and process and product formed thereby A progressive die for shaping a consecutive series of discs from a strip of relatively stiff material, comprising a series of adjacent die stations including a slot cutting station, a plurality of intermediate stations, and a cut off station, the slot cutting statio... | 07/31/2007 |
| 7219044 | Method and system for improving a part's resistance to stress induced failure A method and system for designing a part with improved fatigue life and resistance to stress corrosion cracking in which residual stresses existing in the part are accounted for. The performance criteria and operating conditions of the part are assessed and a total ... | 05/15/2007 |
| 7194882 | Cold forging apparatus and method for forming complex articles A cold forging apparatus for forming complex shapes at a single station includes a plurality of multiple function punch assemblies disposed on intersecting axes. Each of the multiple function punch assemblies includes an inner or a center punch and an outer or ring-... | 03/27/2007 |
| 7194886 | Method for forging plate and method for manufacturing a liquid ejection head There is disclosed a punch for forging a metallic plate member. A first die is adapted to be opposed to a first face of the plate member. A second die is adapted to be opposed to a second face of the plate member. A plurality of first projections are provided on the... | 03/27/2007 |
| 7171837 | Hollow stepped shaft and method of forming the same A hollow stepped article is formed from a solid blank to reduce the material cost, and cracking is prevented in a stepped portion of large diameter when a portion of the blank is deformed by its radial expansion. A hollow stepped shaft is formed by holding an upper ... | 02/06/2007 |
| 7165812 | Side plate with integral boss A side plate according to the invention includes a main body, a first cup-shaped feature formed of the main body, and a second cup-shaped feature formed of the first cup-shaped feature, wherein the second cup-shaped feature has a diameter smaller than the first cup-... | 01/23/2007 |
| 7162907 | Punch tool for angled orifice A punch tool for punching orifice that has wall surfaces extending at an angle relative to a generally planar surface of a workpiece. The punch tool of the preferred embodiments is provided with configurations that, at the very least, increase the life of the tool, ... | 01/16/2007 |
| 7159436 | Asymmetrical punch An asymmetrical tool is provided to form an asymmetric orifice for an orifice disc. The asymmetric orifice is initially formed with a wall portion extending generally perpendicular to first and second generally parallel surfaces of the orifice disc. The wall of the ... | 01/09/2007 |
| 7131310 | Method for manufacturing improved fatigue life structures, and structures made via the method A method for cold working metal structures. A compound indenter is used to produce deformation in a workpiece, to provide a selected beneficial residual stress profile, to provide improved fatigue life structures with minimal manufacturing steps. A compound indenter... | 11/07/2006 |
| 7127929 | Forging work method A metallic plate member is provided. A first punch is operable to perform a first forging work to mold a first member in the plate member. The first member has a first function. A second punch is operable to perform a second forging work to mold a second member in t... | 10/31/2006 |
| 7117710 | Reverse input blocking clutch and clutch device using the same A reverse input blocking clutch comprises, as main elements, an input member, an output member, a stationary member for constraining the revolutions, locking means, lock release means and torque transmission means. By forming the input member, the output member, the... | 10/10/2006 |
| 7117707 | Apparatus and method for thermomechanically forming an aluminide part of a workpiece A method of thermomechanically forming an aluminide part of a workpiece resistively heats at least a portion of the aluminide part, plastically deforms the heated portion of the aluminide part to a predetermined shape by applying pressure to the aluminide part posit... | 10/10/2006 |
| 7117706 | Programmable apparatus and method for body panel attachment A method and apparatus for forming attachment pads in an inner body panel for the precise attachment of an outer body panel thereto. The apparatus positions a fixed anvil at a predefined net reference position while a face plate simultaneously “finds” the panel ... | 10/10/2006 |
| 7100260 | Programmable apparatus and method for body panel and clinch nut attachment A method and apparatus for forming attachment pads on a panel for attachment of a clinch nut thereto. The panel is formed between a forming die and a fixed anvil, which occupies a predefined net reference position. A face plate simultaneously “finds” the panel a... | 09/05/2006 |
| 7073364 | Die assembly having floating die section A die assembly for use on a press and adapted to form a plurality of features on a strip of material. The die assembly includes a first die section and a second die section. The first die section is supported on the press and has a first tooling surface for forming ... | 07/11/2006 |
| 7069763 | Container end and forming systems therefor A method and apparatus for forming container ends includes tooling which forms dome members for can ends, which dome members include an open neck thereon. Thread lugs are formed as integral spaced apart shaped protrusions from the neck exterior. A system is also dis... | 07/04/2006 |
| 7062852 | Rocker arm A rocker arm comprises an arm body, a shaft and a roller. The arm body formed substantially in a U-shape in section by effecting drawing on a metal plate, includes a connection wall connecting a pair of side walls, an aperture formed through the connection wall, and... | 06/20/2006 |
| 7055353 | Progressive stamping die A progressive stamping die system and method of operation providing dimensionally accurate flat stamped parts. A biasing mechanism is provided in actual alignment with a coin punch member in order to accurately control the configuration and planar accuracy of the st... | 06/06/2006 |
| 7047787 | Method of forming spline and keyway for sheet metal rotating member with boss part An annular excess portion is disposed, a spline forming male mold is passed through a boss of a sheet metal-made rotary member in which a root portion of the boss and a peripheral portion are previously displaced, and the boss is set to a stationary mold with being ... | 05/23/2006 |
| 7047786 | Method and apparatus for improving the fatigue life of components and structures Metal cold-working tooling and a method of employing such tooling. The tooling is used to produce deformation in a workpiece, to provide a selected beneficial residual stress profile in the workpiece, in order to provide high fatigue life structures in a minimum num... | 05/23/2006 |
| 7041932 | Apparatus and method for supplying a continuous source of wire An apparatus and method for supplying a continuous source of wire includes a base supporting at least first and second sources of wire, a wire joining apparatus adjacent the base configured to weld a first wire from the first source with a second wire from the secon... | 05/09/2006 |
| 7028525 | Method and a device for deformation of a material body The device comprises a stamping member (2) arranged to be conveyed towards and hit a material body (1) with such a velocity that a rebound motion of the stamping member (2) is generated while a permanent deformation of the material body (1 | 04/18/2006 |
| 7013696 | Method of making a flanged tubular metallic part A method of making a flanged tubular metallic part by cold forging is provided. The method comprises a step of forming an axial depression in a blank and a flange forming step of making the depression axially deeper while causing a metal of the blank to flow radiall... | 03/21/2006 |
| 7012204 | Silver contact fixing structure for conductive blades A silver contact fixing structure for conductive blades aims at providing a retaining force on a silver contact so that the silver contact is more secure and does not break loose when subject to striking. The silver contact is built in a fastening section formed on ... | 03/14/2006 |
| 7000320 | Process for manufacturing miniature ball bearings A process for manufacturing miniature ball bearings that reduces material loss to improve manufacturing efficiency. The process consists of obtaining an inner and outer ring blank by cutting a first blank, forging the first blank to obtain a final blank, and separat... | 02/21/2006 |
| 6978546 | Method for producing ring members involving use of a rotatably driven mandrel A method for producing ring members, such as rings for rolling bearings, through use of a rolling operation involves warming a ring blank, positioning the warmed ring blank over a mandrel which is rotatable about a first axis, and positioning a forming roll rotatabl... | 12/27/2005 |
| 6968723 | Method of punching small hole and method of manufacturing liquid ejection head using the same An upper die and a lower die are provided. An unpenetrating hole is formed at an upper face of a metal board with the upper die, so that a protrusion is formed on a lower face of the metal board at a portion corresponding to the unpenetrating hole. A flat portion is... | 11/29/2005 |
| 6951124 | Method for making elements of a continuously variable transmission belt Notched areas are provided on the outer periphery of a flat plate in the coining process to allow material of said plate flow more easily toward the periphery during the coining process. Use of flat plate provides a more economical way of making elements with accura... | 10/04/2005 |
| 6948350 | Wave-processing method and wave-processing die for core metal of wet friction material A ring-shaped core metal is pressed and compressed by a main punch and a counter punch so as to have a wave shape. Moreover, each group of three micro-protrusions provided on each of top points of the wave shape are cut in the core metal. Then, three notches are cut... | 09/27/2005 |
| 6945478 | Fuel injector having an orifice plate with offset coining angled orifices A fuel injector having an orifice plate proximate the outlet. The orifice plate has first and second plate surfaces spaced at a predetermined distance from one another and an orifice, the orifice extending along a longitudinal axis and includes a first surface and a... | 09/20/2005 |
| 6928849 | Method of manufacturing heat exchanging fin and die set for manufacturing the same The method of manufacturing a heat exchanging fin having an oval collared through-hole is capable of reducing manufacturing cost. The method comprises the steps of: forming a circular projected section, whose transverse sectional shape is a circular shape, in a thin... | 08/16/2005 |
