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| Number | Title | Issue Date |
| 8176763 | Steering rack A toothed rack has hollow sections and a longitudinal axis that extends parallel to a longitudinal direction and which in the hollow region includes a wall encompassing the longitudinal axis of the toothed rack in a circumferential direction and in at least a subreg... | 05/15/2012 |
| 7637135 | Method for producing from a metal sheet a hollow profile which is longitudinally slotted and provided with several longitudinal segments having different cross sections A method for producing hollow profiles provided with different cross sections along the length thereof includes shaping the profiles in a die from one piece of cut metal sheet. According to said method, a convex or concave rounding produced on the edges of a longitu... | 12/29/2009 |
| 7621167 | Method of forming a rotary device The present invention is a method of constructing a rotary device which as an outer hub and an inner hub disposed within the outer hub. One of the inner and outer hubs is rotatable with respect to the other one of the inner and outer hubs about an axis. A ribbon of ... | 11/24/2009 |
| 7430890 | Telescoping tower and method of manufacture A mast section for a telescoping tower system is made by aligning press brake tools along the length of the metal sheet at spaced width locations and forming the corners of the tube. After forming of the last corner, an opening remains along the length of the tube. ... | 10/07/2008 |
| 7430888 | Tubular metal body, method of producing same, liner for pressure vessel and method of producing same A tubular metal body 1 comprises a tube 2 extruded through a porthole die and composed of a plurality of components 2b joined to one another with a plurality of joint portions 2a extending over the entire length of the tube.... | 10/07/2008 |
| 7418849 | Process of producing profiles whose cross-section is variable in the longitudinal direction A process of producing profiles whose cross-section is variable in the longitudinal direction, characterised by the process stages of cutting a blank 31 with a substantially constant width along a longitudinal direction, deforming the blank 31 by deep-... | 09/02/2008 |
| 7353581 | Method for manufacturing archery risers In a preferred embodiment of the present invention, a riser for an archery bow is manufactured by providing a flat workpiece, forming the flat workpiece to a pre-bent profile of an archery riser, placing the flat workpiece in a press, and bending the flat workpiece ... | 04/08/2008 |
| 7350386 | Method and apparatus for making tubes In a method of making a tube, a sheet metal blank is placed in a U-shaped cavity of a lower mold of a shaping tool, and pressed into the cavity by a ram to shape the blank into a U-shaped configuration. In a next process step, the U-shaped blank is formed between an... | 04/01/2008 |
| 7334524 | Production vehicle for tritrack transportation system A rail system for transporting dual use vehicles includes a network of multiple non-interconnected rails where each rail comprises an extruded triangular shell and a support material. The rails are supported by a system of support structures where each support struc... | 02/26/2008 |
| 7325435 | Method of manufacturing, apparatus and resulting irregular shaped cross section tubes A method and apparatus for making a tube having an inverted cross section and the resulting tube made thereby. ... | 02/05/2008 |
| 7287684 | Filter cartridge assembly and method of manufacture An apparatus for filtering well fluids and method of manufacture is disclosed. The apparatus comprises an inner support, a filter spirally wrapped around the inner support, and an outer support wrapped around the filter enclosing the filter between the inner and out... | 10/30/2007 |
| 7275407 | Process for producing rotationally symmetrical components A process for producing a hollow monoblock shaft from a pipe, the pipe initially having a constant diameter and a constant wall thickness, and the monoblock component including at least one area of its length being of a smaller outside diameter and a greater wall th... | 10/02/2007 |
| 7257932 | Light weight building material The present invention relates to a light weight building material (1) for structural work. The light weight building material (1) comprises at least three walls, a first wall (11), a second wall (12) and a third wall (13) formed fr... | 08/21/2007 |
| 7231792 | Method and device for manufacturing UOE steel pipes A method and device for manufacturing UOE steel pipes, wherein, when an opening width of the U-can obtained by U-ing press is larger than the die-diameter in an O-press of later step, while said opening is narrowed from the front end by the closing rolls disposed be... | 06/19/2007 |
| 7219524 | Method for manufacturing high-pressure piping part and structure thereof A high-pressure piping part includes a body structure forged in a closed space. The body structure is formed to include a main body portion formed by forward extrusion and side arm portions formed by side extrusion. The main body portion has therein a fiber flow for... | 05/22/2007 |
| 7185524 | Grindless surgical needle manufacture A method for manufacturing a surgical needle devoid of a grinding process includes the steps of swaging a needle blank to define a substantially tapered or conical needle end, pressing the tapered needle to form a plurality of intersecting surfaces and forming cutti... | 03/06/2007 |
| 7181847 | Process for manufacturing a cylindrical hollow body and hollow body made thereby Process for manufacturing cylindrical hollow bodies with a circular cross-section using solid rough material of corrosion-resistant, martensitic chromium steels. A remelting block is produced and a tube blank is made therefrom, the tube blank being formed into a tub... | 02/27/2007 |
| 7159317 | Inner metal link bushing for a vibration isolator and method for forming An inner metal link bushing is formed by providing flat steel stock having a chamfered edge disposed at an angle relative to the surfaces such that, when the flat stock is reshaped to a tubular formation, the edges forming a longitudinal seam will initially contact ... | 01/09/2007 |
| 7134456 | Pipe body, method of manufacturing pipe body, and image forming apparatus using the pipe body A method of manufacturing a pipe body having a rectangular cross section, including preparing a metal plate having edges parallel to each other and bending lines parallel to the edges, forming malleable portions extending perpendicular to the bending lines, forming ... | 11/14/2006 |
| 7107682 | Method for manufacturing tubes and profiles The invention relates to a method for manufacturing tubes and profiles with variable wall thickness over the length. The method comprises the steps of flexible rolling of continuous material strip with variable thickness in the longitudinal direction of the strip ma... | 09/19/2006 |
| 7104103 | Method for producing a metal tube A small diameter metal tube whose inner surface is smooth and its production method are provided. The metal tube has an inner diameter of up to 1.0 mm and its inner surface has a maximum height difference (Rf) in the surface roughness of up to 3 μm. ... | 09/12/2006 |
| 7082795 | Metal tube and its production method A small diameter metal tube having at least two inner diameters is provided. A method for producing this metal tube is also provided. In this method, a plate member having a development shape of the metal tube is blanked from a metal thin plate so that the plate mem... | 08/01/2006 |
| 7069764 | 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... | 07/04/2006 |
| 7051567 | Method for folding and curving of a metallic plate A metallic plate is curved and folded by means of a press such that a curved portion is formed along an edge thereof, and two opposing straight portions are parallel, which are on two sides of the curved portion; the press includes first and second lower dies, and f... | 05/30/2006 |
| 7044169 | Pipe body and forming method of the same The present invention provides a pipe body of which the edge sections contact with each other stably and which can be formed only by means of only a press processing without performing a welding in mass-producing, wherein separation-prevented engagement due to defor... | 05/16/2006 |
| 6983770 | Method of manufacturing pipe body and pipe body manufactured by the method A method of manufacturing pipe body by which pipe body with precise quality and closely contacted seam can be made stably by pressing process, and pipe body manufactured by the method are provided. To manufacture a pipe body 1 made of metal with circular or p... | 01/10/2006 |
| 6929035 | Thin walled compartmented tubular structure and its manufacturing process Thin walled compartmented tubular structure and its manufacturing process. The elbow or T-shaped structure, includes an external wall (14)and continuous internal walls (22) made in one piece. This therefore materializes, between the inlet (10... | 08/16/2005 |
| 6880220 | Method of manufacturing cold worked, high strength seamless CRA PIPE A process produces a welded seamless PIPE having good yield strength and excellent corrosion and/or erosion resistance. Up to a maximum outside diameter corrosion and/or erosion resistant CRA PIPE is cold worked from a welded hollow, rather than using the traditiona... | 04/19/2005 |
| 6851172 | Method for securing a rod-shaped part in a holding member In a method of securing a rod-shaped part in a surrounding holding member, a flat holding member is fabricated with opposite side edges that are formed with elements configured for interlocking engagement. The side edges of the holding member are bent upwards, and t... | 02/08/2005 |
| 6828523 | Method and device for the formation of pipes A method for the manufacture of welded tubes is provided. The tube bodies are produced in a press or rounding apparatus and are fed to a welding machine, such as a laser or electron beam type welding machine. The tube is formed when the edges of the tube bodies are ... | 12/07/2004 |
| 6790536 | Sheet metal profile support, in particular for automotive construction, and method for producing it A sheet metal profile support (10) for automotive construction, such as a cross member, rocker panel, or frame support is disclosed, with a U-shaped, parabolic, or horseshoe-shaped profile cross section (12), in which, in at least one section (14 | 09/14/2004 |
| 6745457 | Electromagnetically operable valve and method for producing a magnet housing for a valve An electromagnetically operable valve having an electromagnetic circuit which includes at least one solenoid coil, a core used as internal pole, and an armature, as well as a magnet housing at least partially surrounding the solenoid coil. The magnet housing is prod... | 06/08/2004 |
| 6718812 | Method for making a beam from a metal sheet A method for making a beam from a metal sheet (10), includes the steps of providing a metal sheet having opposite first and second side edges (12, 14) extending longitudinally along opposing sides of the metal sheet, and a first and a second generally ... | 04/13/2004 |
| 6705143 | Method of manufacturing loading plane border frame tubes for chairs A method of manufacturing loading plane border frame tubes for chairs utilizes continuous roll-forming processes to roll a base material to form loading plane border frame tubes for use on chairs. The processes include: transport a steel sheet to a roller leveler fo... | 03/16/2004 |
| 6694616 | Method of forming T-connectors The invention provides a method of forming a T-shaped pipe (60) or tube connecting section, also referred to as a T-connector, T-junction or a T-section. The method comprises the step of cutting a form out of sheet metal, the form substantially comprising... | 02/24/2004 |
| 6601427 | Method of manufacturing pipe body and pipe body manufactured by the method A method of manufacturing pipe body by which pipe body with precise quality and closely contacted seam can be made stably by pressing process, and pipe body manufactured by the method are provided. To manufacture a pipe body 1 made of metal with circular ... | 08/05/2003 |
| 6601301 | Jewelry formed by sections of multiply colored elements and process for making the same Process for making jewels such as necklaces, bracelets or the like with different colors on at least two of their faces in sight so that a user can choose to put on the necklace or jewel so as to show one face or the other of the jewel according to the wi... | 08/05/2003 |
| 6579579 | Container made of a light metal alloy and process for its manufacture A container, in particular a container with a tube-shaped wall, made of a light metal alloy for use as a reaction chamber in a process for manufacturing wafers. The container wall is made by way of extrusion or ring-rolling, and the container wall is made... | 06/17/2003 |
| 6539628 | Formed strip and roll forming A V-shaped metal strip has a U-shaped bottom having U-shaped inside and outside surfaces. Only the U-shaped inside surface is formed with a plurality of fold lines extending in a longitudinal direction of the strip and reducing the influence of springback... | 04/01/2003 |
| 6497040 | Process for producing an angled bore in a component A process for producing an angled bore in a component, wherein a straight bore is first let into the component and, after the straight bore is let into the component, this component is deformed so that an angled bore course is produced.... | 12/24/2002 |
