Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8042368 | Method and apparatus for the production of a longitudinal seam welded hollow profile To produce hollow profiles from sheet-metal blanks, the invention uses at least two process steps to form said blanks into a slit profile which is subsequently welded to produce the finished welded profile. For this purpose a mandrel is used which cooperates with a ... | 10/25/2011 |
| 7966855 | Shaped composites and method of making thereof A process of forming a shaped composite material is provided which includes the steps of providing a composite strip having a substantially rigid substrate with a major surface and a polymer overlying the major surface of the substantially rigid substrate. The proce... | 06/28/2011 |
| 7861566 | Sheet-bending press for making pipe A bending press for making tubing from a substantially planar and longitudinally extending metal sheet has a support extending transversely generally parallel to the sheet vertically offset from the sheet, and a bender at one of the edges of the sheet and slidable t... | 01/04/2011 |
| 7669448 | Lockseaming process and apparatus for same An apparatus for forming a thin wall sheet with first and second edge portions into a shell with a predetermined body configuration and a lockseam in which the edge portions are folded over each other. The apparatus includes a mandrel, a means for at least partially... | 03/02/2010 |
| 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 |
| 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 |
| 7320176 | Assembly device of support mat for ceramic catalyst carrier An assembly device includes: a push-in unit provided in a vertically movable tool base to push a ceramic catalyst carrier together with a support mat into a recession of a shaping die; a first and second pressing units for pressing both end portions of the mat from ... | 01/22/2008 |
| 7318455 | 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... | 01/15/2008 |
| 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 |
| 7249479 | Device for forming thin-walled material into a sleeve-shaped body Apparatus (1) for forming thin-walled material from an essentially flat piece of material (2) into a sleeve-like body (20), with two forming dies (3, 4), at least one of which is configured to be able to move into position against the oth... | 07/31/2007 |
| 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 |
| 7232053 | Seam-welded air hardenable steel constructions The present invention provides seam-welded, air hardenable steel tubes, methods of manufacturing seam-welded air hardenable steel tubes, tube mills for practicing such methods and applications for using seam-welded, air hardenable steel tubing of the present inventi... | 06/19/2007 |
| 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 |
| 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 |
| 6993838 | Collector tube for a heat transfer unit and method for producing same The invention relates to a collector tube (1) for a heat transfer unit. The tube comprises one or several slits (3d) on the periphery thereof, whereby said slits are formed by a punch press without an inner die or by high-pressure shaping for in... | 02/07/2006 |
| 6988390 | Method and installation for making a workpiece comprising at least a tubular section A method of forming a tubular workpiece which consists in pre-bending a metal plate along at least two longitudinal lines of bend (12–13) then in bending the plate along at least one of the lines of bend (12–13) using a bending member (103–104... | 01/24/2006 |
| 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 |
| 6898955 | Method for manufacturing a pontoon A pontoon including a substantially cylindrical member having a length in excess of about 14 feet and having no external circumferential welds intermediate the ends of the member and being substantially linear along its length axis. ... | 05/31/2005 |
| 6892928 | Method of manufacturing tubular body, by friction stir welding Method of manufacturing a tubular end product, wherein an aluminum plate is formed into a generally cylindrical body such that opposite end sections of the cylindrical body are flattened and butted together along a joint region extending parallel to an axis of the c... | 05/17/2005 |
| 6789318 | Method for producing longitudinally welded helically corrugated metal tubing A method for producing longitudinally welded helically corrugated metal tubing, wherein a metal strip pulled from a strip supply is formed into tubing with a longitudinal slit, the longitudinal slit is sealed by welding and the corrugation is produced by a corrugati... | 09/14/2004 |
| 6745448 | 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 mass-producing, wherein separation-prevented engagement due to deformat... | 06/08/2004 |
| 6715418 | Apparatus for producing a sleeve-like printing form Apparatus includes a housing, a feed table outside the housing for receiving a plate-like blank, a round shaping device in the housing for shaping the blank into a sleeve-like printing form, a welding system, and a transport device for fixing, transporting and depos... | 04/06/2004 |
| 6675627 | Method and device for forming conical tube casings To form metal sheet blanks into taper tubes, a die is provided which has a conical cavity into which a conical punch plunges. The punch is led into the die along a curve. Taper tube shells can easily be fabricated by this method.... | 01/13/2004 |
| 6651338 | Method for the production of a cylindrical embossing sheet In a method and an apparatus for the production of a cylindrical embossing sheet that is to be fixed on a rotating clamping cylinder for the manufacture of continuous webs having surface structures, such as holograms, cine-grams, exelgrams, for safety and... | 11/25/2003 |
| 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 |
| 6598287 | Apparatus and method for sizing a galvanized tube A method and apparatus for sizing a galvanized tube, in which two sizing stations are used. A first sizing station having at least one sizing roll is used for sizing the tube prior to the galvanizing process. A second sizing station is then used, the stat... | 07/29/2003 |
| 6266865 | Method of punching a composite plate A novel method is provided for forming a clear hole through a composite plate. At least two plates can be joined together to form a wall of a trailer. The following steps are taken to perform the method: A punching apparatus is advanced through an extensi... | 07/31/2001 |
| 6220537 | Fishing spinning reel having smoothly shaped rail portion A fishing spinning reel includes: a reel body; a spool supported on the reel body; a rotor rotatably supported on the reel body for winding a fishing line around the spool; a fishing line guide portion connected to the rotor and movable between a fishing ... | 04/24/2001 |
| 6098869 | Seam welding method and apparatus To weld a workpiece rounded from plane metal sheet on a seam welding machine, the workpiece is introduced into a preform (7) whose internal shape is approximately the same as the workpiece. Stops (11, 12, 14) are used to fix the workpiece in place in the ... | 08/08/2000 |
| 6012315 | Method of manufacturing pipe In order to manufacture a pipe having a plurality of flow channels, by minimizing die jigs and steps, and thus to permit facilitation of manufacture, reduction of cost, and improvement of accuracy, the method of manufacturing a pipe comprises the steps of... | 01/11/2000 |
| 5943891 | Silencer shell forming apparatus In a silencer shell forming apparatus, a mandrel is divided into an upper segment and a lower segment as well as both the segments are permitted to move in a vertical direction to dispense with a setup job when a different type of a shell is formed. Furth... | 08/31/1999 |
| 5924316 | Method of manufacturing pipes having sections with different wall thicknesses A method of manufacturing pipes having sections with different wall thicknesses from an initially plane sheet metal in which a starting sheet metal is subjected to a rolling deformation so as to intentionally produce areas of different wall thicknesses in... | 07/20/1999 |
| 5906759 | Stent forming apparatus with stent deforming blades A stent and a method for fabricating the stent are disclosed. The stent has an originally flat pattern and connection points where the sides of the flat pattern are joined. The method includes the steps of a) cutting a stent pattern into a flat piece of m... | 05/25/1999 |
| 5845526 | Method for producing pipe having polygon-shaped closed cross-section and device therefor A method for continuously producing pipes, each having a polygon-shaped closed cross-section taken perpendicularly to the feeding direction of a strip of metal, which are free from brittleness caused by metal fatigue, and have good precision. A feed-bendi... | 12/08/1998 |
| 5836189 | Method of manufacturing a pipe having sections with different cross-sectional configurations A method of manufacturing a pipe having sections with different cross-sectional configurations includes initially providing a sheet bar which has a rectangular base portion and at least one formation section integrally connected to the base portion. In th... | 11/17/1998 |
| 5825127 | Method for producing a cap band for discharge lamps The invention relates to a method for producing a cap band for discharge lamps, in which a substrate band (1) is coated with at least one material to be introduced into the discharge lamp, in particular a mercury alloy (2) and/or getter material (3). Acco... | 10/20/1998 |
| 5784915 | Machine for bending sheet metal margins On a machine for bending a sheet-metal edge (4) provided with a first sheet metal part (2) over a second sheet metal part (3) to be connected to the first (2), with at least one pair (12, 15) of form rollers, preferably driven, whose form rollers (13, 14;... | 07/28/1998 |
| 5743122 | Apparatus for making a manifold for an automotive heat exchanger There is disclosed herein an apparatus for manufacturing a manifold for a heat exchanger. The apparatus includes a mechanism for forming a generally planar sheet of material into a generally cylindrical member having a seam along the longitudinal length t... | 04/28/1998 |
| 5722149 | Method and apparatus for the fabrication of metal cylinders A method and an apparatus for the fabrication of a metal cylinder from a flat metal sheet is described. The cylinder is preferably, but not exclusively, for use in the construction of an outer casing for a hot water heater. Particularly, the method and ap... | 03/03/1998 |
