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| Number | Title | Issue Date |
| 7163388 | Method and apparatus for incorporating lumens into the wall of a tubular extrusion A polymer extrusion head for forming continuous shapes having one or more lumens therein. The head includes an extrusion mandrel and die. At least one lumen pipe is disposed radially through a port in the die to intersect the polymer flow in the annular region betwe... | 01/16/2007 |
| 7092791 | Robot system and machining method with robot system A robot system and a machining method capable of accurately and simply cutting an end of a pipe into a saddle shape and forming a hole on an outer surface thereof, and further machining a workpiece of a three-dimensional shape which does not have platelike shape. A ... | 08/15/2006 |
| 7034244 | Method and apparatus of coordinating operational feedback in a plasma cutter The present invention is directed to a system and method for improved operational feedback from a plasma torch to a plasma-cutting power source. A plasma cutter includes a plasma cutting power source, a plasma torch in communication with the plasma cutting power sou... | 04/25/2006 |
| 6537386 | Apparatus and method for surface treatment of metal articles A camera is arranged to map defects in the molten metal bath formed by scarfing using a scarfing torch on a steel slap. The camera has a field of a large area of the slab and records the defects as flashes of high intensity light the nature of which ident... | 03/25/2003 |
| 5688339 | Oxy-fuel flame impingement heating of metals Heating metal articles by direct surface impingement of an oxy-fuel flame without causing damage, or surface melting of the articles being heated. Flame contact is cycled to achieve maximum allowable rate of heat introduction thereby substantially reducin... | 11/18/1997 |
| 5157232 | Method and apparatus for inductively heating asymmetrically shaped workpieces Metal workpieces having portions of different mass are sequentially stepped through a series of induction heating units having differently contoured inductors for inductively heating the workpiece portions of different mass so as to progressively elevate ... | 10/20/1992 |
| 4925499 | Method of and an apparatus for controlling a quantity of an explosive gas mixture in a workpiece treatment chamber A method of and an apparatus for controlling a quantity of an explosive gas mixture to be used in treating workpieces with thermal and pressure shocks wherein a signal gas having a predetermined initial pressure is introduced into a workpiece treatment ch... | 05/15/1990 |
| 4773946 | Device for controlling operating gap of cutting head and method of using same There is provided a device for controlling the vertical operating gap between the lower end of a cutting head, such as a frame cutting torch, and a generally flat workpiece positioned below the cutting head as the head and workpiece are moved relative to ... | 09/27/1988 |
| 4755232 | Method and apparatus for mechanically controlling the flame cutting and/or connection welding of workpieces A method and apparatus for mechanically controlling the flame cutting and/or connection welding of workpieces. The difficulty encountered during the mechanized burning of holes in vessels, containers or tanks and the welding of connecting members into the... | 07/05/1988 |
| 4602967 | Method and apparatus for thermal longitudinal parting of rectangular metal plate bars, in particular of cut-to-length continuous-casting plate slabs The invention is directed to a method and apparatus for thermally cutting rectangular metal slabs along a longitudinal axis of the slab. A metal slab is conveyed along a predetermined path of travel while it is being cut by, for example, an oxygen-flame c... | 07/29/1986 |
| 4601762 | Methods for conditioning metal products The surface and/or subsurface defects of the surface to be treated are detected, preferably over the entire said surface. The defects are eliminated by scarfing with a torch and/or by milling, following which the treated surface is inspected and cleaned. ... | 07/22/1986 |
| 4501624 | Flame-cutter employing a discontinuous oxygen supply for billets produced in a continuous caster A flame-cutter for separating a moving billet produced by a continuous caster wherein the billet is supported by at least one billet supporting roller. The flame-cutter includes a burner having a nozzle supported for synchronous movement with the billet, ... | 02/26/1985 |
| 4439249 | Automated cutting of plate steel Method and apparatus for automated cutting of metal plates in which fuel and oxygen adjustments, as well as other parameters are controlled automatically responsive to temperature sensed at a plurality of points near where the cut is being made; for examp... | 03/27/1984 |
| 4384901 | Method and apparatus for cutting and beveling pipe A method and apparatus for cutting a pipe. A pipe is positioned on a plurality of support rollers for rotating the pipe. A cutting torch, mounted on a telescoping arm, is movable along the longitudinal axis of the pipe. The angle that the cutting torch ma... | 05/24/1983 |
| 4337099 | Method and apparatus for conditioning of steel surface A flaw detecting unit inspects the surface of a red-hot steel material, the nail marking unit drives steel nails into the flaw in response to the flaw detection signal, and a scarfing unit scarfs the flaw starting from the nails in response to the scarfin... | 06/29/1982 |
| 4328049 | Torch height sensing apparatus A torch height sensing apparatus (10) is provided for generating information representative of the spacing between a cutting torch (12) and an associated workpiece (14). The apparatus (10) drives a preselected current from the torch (12) through the torch... | 05/04/1982 |
| 4280687 | Flame cutter A cutting machine for severing a moving strand portion includes an elongated support; the strand portion normally moves near the support in one direction of elongation thereof, and a carriage may be operably moved on the support in the one direction and i... | 07/28/1981 |
| 4175729 | Method and apparatus for producing metal blanks, in particular steel slabs, which at least in a predetermined surface area have substantially no defects Method and apparatus for producing metal blanks, in particular steel slabs, which at least in a predetermined surface area have substantially no defects such as cracks, seams, bubbles, scabs, or the like, at least the surface portion to be made free of de... | 11/27/1979 |
| 4138277 | Method and apparatus for producing metal blanks, in particular steel slabs, which at least in a predetermined surface area have substantially no defects Method and apparatus for producing metal blanks, in particular steel slabs, which at least in a predetermined surface area have substantially no defects such as cracks, seams, bubbles, scabs, or the like, at least the surface portion to be made free of de... | 02/06/1979 |
| 4126491 | Method and apparatus for producing metal blanks, in particular steel slabs, which at least in a predetermined surface area have substantially no defects Method and apparatus for producing metal blanks, in particular steel slabs, which at least in a predetermined surface area have substantially no defects such as cracks, seams, bubbles, scabs, or the like, at least the surface portion to be made free of de... | 11/21/1978 |
| 4115151 | Method and apparatus for workpiece surface treatment The present invention relates to a method and an apparatus for treating the surface of a workpiece. The invention ensures correct working of the workpiece surface and renders an accurate control of the working place in question possible. The removal of wo... | 09/19/1978 |
