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| Number | Title | Issue Date |
| 6880742 | Separating seam welding device Shown is a device and a process for the simultaneous separating and welding of foils or foil tubes (5) where the device comprises at least one welding terminal (2) and an opposing terminal (3), | 04/19/2005 |
| 6627840 | Method and means for processing butt welds A method and machine for deburring the burr which is formed when wires are butt welded is disclosed. The machine comprises a deburring head which has a pair of opposed deburring rollers mounted thereon. Each of the rollers has a milled surface formed ther... | 09/30/2003 |
| 5811755 | Weld repair method for aluminum lithium seam Aluminum-lithium plates are butt-welded by juxtaposing the plates and making a preliminary weld from the rear or root side of the seam. An initial weld is then made from the face side of the seam, which may cause a defect in the root portion. A full-size ... | 09/22/1998 |
| 5695663 | Plasma cutting method and NC plasma cutting apparatus The present invention relates to a plasma cutting method and an NC plasma cutting apparatus in which an improvement can be made in the quality of a bore-cut product obtained by using a transferred plasma arc, and the productive efficiency can also be enha... | 12/09/1997 |
| 5550344 | Mounting apparatus for a cutting torch having soft touch height control An apparatus for mounting a cutting torch to a shape cutting machine is adapted to detect contact between the torch and a workpiece in the vertical direction, and between the torch and an obstruction in a lateral direction. The mounting apparatus includes... | 08/27/1996 |
| 5515589 | In situ method for remotely operated, automatic contour mapping, machining and welding of piping A method for upgrading/repairing existing piping systems of a nuclear reactor without removal/replacement of the old piping. The process involves the steps of machining a counterbore of exposed corrosion-susceptible material and then depositing a corrosio... | 05/14/1996 |
| 4843213 | Welding and/or cutting machine A welding and/or cutting machine 1 is provided for use on a workpiece 2 formed by a pair of metal sheets 3 in face to face contact. The machine comprises a movable carriage 4 mounted on a pair of drive rollers 5 operable to grip the sheets 3 of the workpi... | 06/27/1989 |
| 4741471 | Method for manufacturing a rotary rock bit A method and device are shown for manufacturing rotary rock bits. The method eliminates repositioning errors in robotic welding operations by combining a cutting torch and a welding torch on a single, rotatable bracket whereby a bit can be welded at a sin... | 05/03/1988 |
| 4540870 | Machine for electric arc welding and air carbon arc gouging on vertical curved or straight walls A portable machine for electric arc welding and air carbon arc gouging on vertical wall surfaces is disclosed. A table-mounted carriage arm carrying a vertical positioning assembly for welding nozzles or a gouging torch is driven horizontally around a ver... | 09/10/1985 |
| 4288681 | Apparatus for fabricating isolated phase bus The apparatus includes a pair of rotatable headstocks which are spaced apart. A side beam extends along at least a portion of the distance between the headstocks with the side beam being substantially parallel to a line connecting the centers of rotation ... | 09/08/1981 |
| 4052039 | Automatic cutting torch assembly The invention relates to an automatic cutting torch assembly for making cuts of any predetermined shape in a metallic pipe. Rollers are provided for the pipe to be processed which permit back and forth movement of the pipe. A photoelectric tracer unit and... | 10/04/1977 |
