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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 7370676 | Sleeve with insert for repairing high-pressure fluid pipes A sleeve f or repairing a fluid pipe (12), including a rigid or flexible shell (22) which forms a mold that surrounds at least one defective area (10) of the pipe. A liquid-state polymerizable material is injected into the mold, which polymerize... | 05/13/2008 |
| 7350584 | Formed tubulars A method of lining a drilled bore comprises running a tubular into a drilled bore and then corrugating the tubular in the bore. The tubular may also be expanded in the bore. In other aspects of the invention the tubular is corrugated prior to running into the bore a... | 04/01/2008 |
| 6688513 | Process for producing longitudinally welded tubes In a process for producing longitudinally welded tubes, a metal strip, which is continuously pulled from a supply, is gradually formed into a slit tube and the longitudinal slit of said slit tube is welded. The metal strip (2) is pulled through a pluralit... | 02/10/2004 |
| 6572003 | Seam welding apparatus and seam welding method To provide a seam welding apparatus and a seam welding method that may operate at a low pressure to obtain a suitable overlapped alignment amount. In the seam welding apparatus, a trailing plate clamp moving means is provided with link mechanisms for over... | 06/03/2003 |
| 6539631 | Tapered trailer with horizontal seams and support rails A process for manufacturing a sidewall for a trailer in the shape of a trapezoid having a right edge and a left edge of differing lengths and the top edge perpendicular to the right and left edges. A first rectangular sheet has lengths of a top and a bott... | 04/01/2003 |
| 6268066 | Structure and process for automatic welding stainless steel boxes A structure and a method of making a burner box by providing a U-shaped body with end members. The end members each rest on an end of the body and of the U-shape body. The ends are welded to the end members to the U-shaped body by a tungsten arc gas weldi... | 07/31/2001 |
| 6221505 | Lap joint welding arrangement and a related welding method for forming the same A first member and a second member have end portions overlapped and welded by irradiating a laser beam on an outer surface of a lap portion. A front end surface of a fused portion slants at an obtuse angle larger than 90° with respect to a naked outer su... | 04/24/2001 |
| 6060682 | Overlapping joint for laser welding of tailored blanks A joint is formed between adjacent edges of a pair of weldable components by forming an undercut on one of the edges. The other edge abuts the undercut so that a portion of the one edge overlaps the other. The edges are laser welded by impinging a beam on... | 05/09/2000 |
| 4701424 | Hermetic sealing of silicon A method of forming a hermetic seal between two silicon wafers includes forming opposing troughs in each of the two wafers. In each trough are formed an isolation layer, a diffusion barrier and a tub of polysilicon. A gold strip is put on one polysilicon ... | 10/20/1987 |
| 4026456 | Method of attaching a tube to a wall A method of attaching a tube to a wall and particularly to an automotive radiator tank wall in a fluid tight seal in which the tube is provided with inner and outer end flanges on the end that is to be attached to the wall with these flanges spaced apart ... | 05/31/1977 |
| 3994431 | Method for anchorage and splicing of wires on wire-wrapped cylindrical prestressed structures In the production of wire-wrapped pressure vessels and pipe the ends of the wire are anchored or spliced by welding the end hoop to the next adjoining hoop, while the stresses in those hoops subjected to welding are minimized by providing a greater wire d... | 11/30/1976 |
| 3968919 | Method of forging a solid head on a hollow steel tube A method of forging a solid flanged head on a hollow steel tube by positioning a cylindrical steel plug within a steel tube of the same grade, and extending said positioned cylindrical plug beyond the end of the tube, thereafter heating the end of the tub... | 07/13/1976 |
