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| Number | Title | Issue Date |
| 7045022 | Removal of adherent molten metal from surfaces The present invention provides a method and process for removing adherent molten metal from a surface by applying a non-wetting agent for the metal to the surface or to the adherent molten metal. The non-wetting agent may be a pressurized fluid or applied by a press... | 05/16/2006 |
| 6910881 | Flashback arrestor for use with head of oxy-fuel torch Flashback protection is provided in or proximate the head of a cutting torch by a fitting, which can be in the form of an adapter or a cutting tip for mounting to the head. The fitting includes a body and porous structure that is preferably carried by the body and i... | 06/28/2005 |
| 6433451 | Method and electric motor with rotational stator An electric composite rotating machine haveing two rotors, capable of developing mechanical power and of runing on two rotational direction at selfadjutable speeds, of differential type, with 40% increase of output, doubling the torque at 30% reduction of... | 08/13/2002 |
| 5470227 | Pilot igniter torch with cutoff preheat valves A cutting torch allows the preheat oxygen and fuel valves to remain in a preset position while the torch is off. The cutting torch has preheat oxygen and fuel cutoff valves mounted in line with the adjusting valves. The cutoff valves are both operated lin... | 11/28/1995 |
| 5391237 | Method of manufacturing a metal workpiece by oxygen cutting, oxygen-cutting device and metal workpiece obtained The workpiece is obtained by cutting a metal product by oxygen cutting. An oxygen cutting jet is sent onto a preheated cutting zone of the product. A peripheral sleeve of additional gas is formed around the oxygen cutting jet so as to send, into the cutti... | 02/21/1995 |
| 5385336 | Method and apparatus for torch working materials Torch apparatus (20) for working a material comprises a mixer (28) with a central body (32) placed inside the inner space (30) of the mixer, and a torch tip (22) with a combustion chamber (24) and a nozzle (26). Fuel and oxidizer components are delivered ... | 01/31/1995 |
| 5383650 | Gas flow control assembly for a gas-saving oxy/fuel cutting torch A novel gas flow control assembly for a gas fuel cutting torch is disclosed. The gas flow control assembly provides a gas-saving oxy/fuel cutting torch which may be operated in a pilot mode when the torch is not in active use. The gas flow control assembl... | 01/24/1995 |
| 5379930 | Torch specially adapted to gasoline-oxygen cutting machine and cutting machine provided with said torch A curing torch specially adapted to gasoline-oxygen cutting machine and cutting machine provided with said torch. Said torch comprises a cutting torch body; a gasoline tube, a preheating oxygen tube and a cutting oxygen tube; a gasoline adjusting valve, a... | 01/10/1995 |
| 5308042 | Oxy-cutting machine with mass flow controlled supply to the cutting burner Use of a mass flow cock with control units and pressure reducing systems results in an even output at changing exit dimensions respectively nozzle exit bores by an automatic balancing of the process volumes, reduces thereby the equipment expenditure and i... | 05/03/1994 |
| 5002261 | Cutting torch for iron and steel metallurgy The invention concerns a cutting torch for iron and steel metallurgy which is provided with two oxygen cutting ducts, ending in two housings, for receiving two cutting inserts, or a heating nozzle and a cutting insert. In this manner, there is obtained a ... | 03/26/1991 |
| 4790886 | Method and apparatus for remote under water torch cutting A method for torch cutting metal walls by burning powdered metals admixed with a gas oxidizer to establish a pre-heat flame at a cutting zone and followed by continuously adding a gas cutting agent for intensifying said flame cutting through the metal wal... | 12/13/1988 |
| 4760994 | Device for a welding torch A safety arrangement useful in burning and cutting torches and like devices wherein the torch utilizes an oxidizer medium and a fuel which is supplied to the torch at selected pressure and where the fuel and oxidizing medium are independently provided to ... | 08/02/1988 |
| 4423855 | Thermochemical drilling and separating process for Si02 containing minerals and device for carrying out the process Process and device for thermochemically drilling and separating SiO2 containing minerals by using such chemical compounds as fluxes in the combustion, which form in the melt silicates of low temperature melting range, primarily alkali metal sil... | 01/03/1984 |
| 4385941 | Method and apparatus for producing a molten puddle during scarfing A method for producing a molten puddle on the surface of a metal workpiece to be scarfed consists of igniting a mixture of fuel gas and oxygen. The resultant flame is used for heating a steel wire to a temperature of from 900° to 1450° C., whereupon the... | 05/31/1983 |
| 4366950 | Method and apparatus for cutting stainless steel Gas cutting of a plate material such as of stainless steel or stainless-clad steel is efficiently carried out by advancing a cutting torch along a mild steel bead formed on the material by melting thereon mild steel using a welding torch. When the materia... | 01/04/1983 |
| 4351676 | Method and apparatus for powder scarfing of metal A method for powder scarfing of metal resides in that combustible gas and oxygen are fed to a zone (9) of treating a metal (10) in order to form a heating flame. Then, flux is delivered by means of a flux-carrier gas, whereupon the former is separated fro... | 09/28/1982 |
| 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 |
| 4324389 | Device for scarfing the surface of a metal workpiece A scarfing device includes a powder supply apparatus having a plurality of discharge nozzles controlled by a shutoff valve and includes at least one extra scarfing nozzle associated with one of the powder discharge nozzles.... | 04/13/1982 |
| 4254942 | Scarfing torch A scarfing torch adapted for manual manipulation which includes means disposed in said torch to provide a component of force upon the torch to offset forces upon the torch generated either by the flow of oxygen gas used in the scarfing process or gravity.... | 03/10/1981 |
| 4168055 | Cutting torch for through cutting workpieces A cutting torch for through cutting workpieces includes a torch stem having its cutting tip directed toward the workpiece with a shielding arrangement attached to the stem for enveloping the cutting area with a mixture of water and compressed air; separat... | 09/18/1979 |
| 4121082 | Method and apparatus for shielding the effluent from plasma spray gun assemblies Method and apparatus for plasma flame-spraying coating material onto a substrate by means of passing a plasma-forming gas through a nozzle electrode, passing an arc-forming current between said nozzle electrode and a rear electrode to form a plasma efflue... | 10/17/1978 |
| 4093191 | Safety device for welding torch In an arrangement for use in burning and cutting torches and like devices where the torch utilizes an oxidizing medium supplied to the torch at a selected pressure and a fuel supplied to the torch at a selected pressure, where the fuel and oxidizing mediu... | 06/06/1978 |
| 4087670 | Process for suppression of noise and fumes generated by plasma-arc cutting operation Noise, fuels and potentially dangerous light emissions generated by a plasma-arc cutting operation are suppressed by carrying out the operation with a solid layer of water surrounding the space between the hot effluent discharge of the torch and the workp... | 05/02/1978 |
| 3975003 | Torch type pipe cutter A pipe cutter including a wheeled carriage which mounts a torch and rolls circumferentially about a pipe so that the torch can progressively make a cut thereabout. The carriage may be held snugly to the pipe by a chain or rope and take-up mechanism, and b... | 08/17/1976 |
