| Patent Number |
Title Of Patent |
Date Issued |
| 6747241 |
Laser beam projector |
June 8, 2004 |
| A laser beam projector to be employed in an automatic welding machine, such as a robot, includes an optical head that projects a laser beam and a holding and turning mechanism that holds and turns the optical head. The spot of the laser beam can be accurately located on the portion to be |
| 6657156 |
Laser welding method and laser welding apparatus |
December 2, 2003 |
| A weld portion detector (20) and a laser beam projector (10) disposed a predetermined distance behind the weld portion detector (20) are moved together. The weld portion detector (20) detects a weld line and the laser beam projector (10) projects on the weld line detected by the weld por |
| 6633018 |
Laser welding head with associated roller |
October 14, 2003 |
| A laser-welding head is capable of applying a fixed pressure to parts to be welded of workpieces regardless of the undulation of the surfaces of the parts to be welded. The laser-welding head includes a pressing device (12) having a roller (16) which rolls along parts of workpieces near |
| 5594548 |
In-furnace inspection machine utilizing a double-walled structure |
January 14, 1997 |
| A machine for inspecting the surface conditions of structural members within a furnace, particularly within a furnace operating at a high temperature or with a highly radioactive environment, such as a melting furnace for processing radioactive wastes. The machine comprises a laser-t |
