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| Number | Title | Issue Date |
| 4147916 | Split-flow nozzle for energy beam system A split-flow nozzle for an energy beam system including a first hollow elongated sleeve and an elongated hollow electrode mounted radially interiorly of said sleeve and radially spaced apart from the sleeve to define an air gap therebetween. The hollow el... | 04/03/1979 |
| 4146654 | Process for making linings for friction operated apparatus A friction lining according to the invention is formed of bounded solidified previously molten particles formed on its support by plasma deposition; the base planes 0001 of a major proportion of the crytals in said lining are oriented in directions substa... | 03/27/1979 |
| 4146772 | Method of and device for plasma-MIG welding Plasma-MIG welding in which a thermally ionizable inert gas is flowed past a starter non-consumable electrode through a nozzle non-consumable electrode toward a workpiece, firstly a plasma arc is established between such starter non-consumable electrode a... | 03/27/1979 |
| 4145403 | Arc heater method for producing metal oxides An arc heater method and system for producing a high energy source characterized by a housing forming a mixing compartment, a plurality of arc heaters radially mounted on the housing and communicating with the mixing compartment, a reactor communicating w... | 03/20/1979 |
| 4142089 | Pulsed coaxial thermal plasma sprayer Apparatus for thermal spraying powdered material onto a substrate. The apparatus consists of an elongated conductive tube, an electrode positioned coaxially within one end of the tube. Inert gas such as helium is mixed with a powdered material such as a c... | 02/27/1979 |
| 4125754 | Installation for surfacing using plasma-arc welding The invention relates to an installation for surfacing by plasma-arc welding including in particular a plasma torch and a control and power supply device for the formation of a transferred arc between the electrode of the torch and the workpiece to be sur... | 11/14/1978 |
| 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 |
| 4118618 | Device for welding optical fibres end to end A welding device for joining optical fibres together with a low loss joint. It comprises a microplasma blow torch with central and tubular electrodes and central and peripheral nozzles supplied with pure and hydrogenated argon. The torch is used in conjun... | 10/03/1978 |
| 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 |
| 4080550 | Method and apparatus for projecting solids-containing gaseous media into an arc discharge An improved apparatus for projecting a solids-containing gaseous media into an arc discharge utilizing a cone shaped cathode, with a passage along the conical surface thereof for insertion of gaseous media into the arc discharge, employing a plurality of ... | 03/21/1978 |
| 4060088 | Electrosurgical method and apparatus for establishing an electrical discharge in an inert gas flow An electrosurgical method and apparatus for coagulating by fulguration where the electrical discharge is established through a formation of flowing inert gas where the formation may either be a diffuse blanket of the flowing gas or a well defined column t... | 11/29/1977 |
| 4060708 | Metastable argon stabilized arc devices for spectroscopic analysis A device is disclosed for producing an electrical arc which is stabilized by a stream of metastable argon, or some other stabilizing gas. The arc may be employed to vaporize a sample material so as to produce light for spectroscopic analysis. The vaporiza... | 11/29/1977 |
| 4058698 | Method and apparatus for DC reverse polarity plasma-arc working of electrically conductive materials A method of DC reverse polarity plasma-arc machining of electrically conductive materials with the aid of a plasmatron the plasmatron having a nonconsumable electrode with an insert made from a high-melting point material, the method being in that the mat... | 11/15/1977 |
| 4057064 | Electrosurgical method and apparatus for initiating an electrical discharge in an inert gas flow A method and apparatus for initiating an electrical discharge in a formation of flowing inert gas disposed adjacent the end of an electrode by generating charged particles in the vicinity of said inert gas formation. The charged particles may be generated... | 11/08/1977 |
| 4056704 | Process and apparatus for heating gases The volumes of hot gas required for use in certain large scale chemical processes may be heated to e.g. above 2500° C by means of a distributed electrical discharge in an apparatus in which the supply of gas to a heating zone is through a plurality of ad... | 11/01/1977 |
| 4042802 | Three-phase arc heater A three-phase arc heater system characterized by two axially spaced, sustantially cylindrical electrodes forming a first intermediate gap, a third electrode forming a second intermediate gap upstream of the first gap, means for channeling gas to the first... | 08/16/1977 |
| 4039798 | Underwater welding A process for arc welding in an underwater environment wherein a welding chamber is positioned adjacent a workpiece and an arc welding torch is positioned therein. A gas under pressure is introduced into the chamber to displace the water and a gas is supp... | 08/02/1977 |
| 4035604 | Methods and apparatus for finishing articles The disclosure of this invention pertains to the method of removing burrs from an electrically conductive article by exposing the article to a plasma flame wherein the parameters of the plasma are so chosen that the plasma becomes concentrated at the burr... | 07/12/1977 |
| 3969603 | Plasma-MIG arc welding A plasma-MIG welding method and device in which a stream of oxidizing gas, such as argon plus 2% oxygen, is introduced into the plasma arc in the region of the plasma nozzle orifice. This improves the stability of the MIG arc, and higher welding currents ... | 07/13/1976 |
| 3947654 | Method of generating laser-radio beam A laser-radio frequency system for generating a high temperature beam and for directing and modulating the combined beam at a workpiece or target. The system includes a hollow circular electrode mounted within a circular nozzle and spaced apart from the n... | 03/30/1976 |
| 3947653 | Method of spray coating using laser-energy beam A laser-radio frequency system for generating a high temperature beam and for directing and modulating the combined beam at a workpiece or target. The system includes a hollow circular electrode mounted within a circular nozzle and spaced apart from the n... | 03/30/1976 |
