Matches 151 - 200 out of 448 < 1 2 3 4 5 6 7 8 9 >
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6198068 Method for plasma brazing  
A method of brazing, with the use of a plasma forming device (1) having a non-consumable electrode (2), comprises the following steps of operation. A first gas is supplied to said plasma forming...
6191381 Tapered electrode for plasma arc cutting torches  
An electrode for a plasma arc cutting torch, wherein the electrode comprises a holder having a tapered tip and emissive element concentrically disposed therein. The holder has an included angle of...
6180911 Material and geometry design to enhance the operation of a plasma arc  
A pour throat nozzle for a plasma arc centrifugal treatment system includes a substantially cylindrical throat section, with a generally arch-shaped, downwardly-facing surface at smaller radius...
6177647 Electrode for plasma arc torch and method of fabrication  
An electrode for plasma arc torches has a tip body having a tip cavity with a cavity sidewall. An emissive insert having an insert sidewall resides in the tip cavity. A noble metal foil is...
6159884 Method of annealing silicon carbide for activation of ion-implanted dopants  
A method and crucible for annealing SiC at high temperatures. The crucible s a vessel having a peripheral wall, at least two compartments separated by an inner wall within the peripheral wall and a...
6156994 Arc-plasma method for welding metals  
In a method for plasma-arc welding of metals with a direct or indirect arc, used as a plasma-producing medium is the vapor of a water-containing fluid doped with an organic solvent appearing as...
6156995 Water-injection nozzle assembly with insulated front end  
A nozzle assembly for a plasma arc torch includes inner and outer metal nozzle members and an annular insulating element press-fit between the inner and outer nozzle members so that the nozzle...
6153852 Use of a chemically reactive plasma for thermal-chemical processes  
A method for optimizing the efficiency of an inductively coupled plasma (ICP) torch by varying at least one of a plasma gas flow rate and a power level applied to energize the ICP torch, and method...
6130399 Electrode for a plasma arc torch having an improved insert configuration  
An electrode for use in a plasma arc torch has an insert designed to improve the service life of the electrode, particularly for high current processes. The electrode comprises an elongated...
6124564 Hardfacing compositions and hardfacing coatings formed by pulsed plasma-transferred arc  
A new hardfacing composition is disclosed. In addition, a pulsed plasma transferred arc method for depositing hardfacing material with a higher content of carbide and lower dilution by a substrate...
6121572 Fixture used for the heat sealing of foils using a plasma jet  
Fixture for the heat-sealing of foils along a weld joint, including a plasma nozzle (10) and a conveying device which generates a relative movement between the plasma nozzle and the foil layers...
6114650 Electrode for plasma arc torch and method of making same  
An electrode for a plasma arc torch comprises a copper holder having a lower end which mounts an emissive element serving as the cathode terminal for the arc during operation. A relatively...
6099667 Process for annealing a moving metal substrate  
A process for annealing a moving metal substrate, especially a steel sheet. The process includes providing a gas under reduced pressure facing a first side of the substrate, creating a cold plasma...
6100496 Method and apparatus for bonding using brazing material  
A method and apparatus for bonding components with a brazing material is described in which atmospheric plasma with active species is created by gas discharge generated in a gas capable of...
6096993 Safety device for a plasma torch  
Plasma torch (1) equipped with a torch head (1') including a nozzle holder (10) and a nozzle (4), the nozzle (4) being fixed to the nozzle holder (10) by the use of fixing elements (14). Safety...
6096992 Low current water injection nozzle and associated method  
A water injection plasma arc torch having a nozzle assembly positioned adjacent the discharge end of the electrode of the torch, wherein the torch is capable of operating at a current of 200...
6087616 Method for the plasmic arc-welding of metals  
6043451 Plasma spraying of nickel-titanium compound  
A process for diffusion bonding a coating of Nitinol intermetallic compound to a surface of a metallic substrate includes heating and cleaning the surface of the substrate to a metallurgically...
6037562 Arrangement and process for sterilizing containers by means of low-pressure plasma  
In order to sterilize the inner surfaces and the outer surface area located in the area of a filling opening of pressure sensitive non-electroconductive containers by means of a low-pressure...
6020571 Welding method and apparatus therefor  
An apparatus and method for welding a superalloy article. The apparatus generally entails an enclosure adapted for containing a superalloy article, a polarity-reversing plasma transferred arc...
6011238 Electrode for a plasma torch  
A plasma torch provided with an electrode (1) having an approximately cylindrical or frustocylindrical elongate shape, the electrode (1) including at least one recess (9) made in at least part of...
6002097 System and method for producing nebulized sample analyte containing solution for introduction to sample analysis systems  
The present invention is a system for nebulizing sample analyte containing solutions which allows liquid solution and gas entry, and is tyically utilized in combination or integration with an...
6001426 High velocity pulsed wire-arc spray  
Wire arc spraying using repetitively pulsed, high temperature gas jets, usually referred to as plasma jets, and generated by capillary discharges, substantially increases the velocity of atomized...
5958157 Magnetic multipole redirector of moving plasmas  
A method and apparatus for redirecting moving plasma streams using a multiple array of magnetic field generators (e.g., permanent magnets or current bearing wires). Alternate rows of the array have...
5958266 Method of plasma incision of matter with a specifically tuned radiofrequency electromagnetic field generator  
A method of incising matter with a harmonious plasma cloud. An inexpensive radiofrequency generator and power amplifier generates an electromagnetic wave which is transmitted from an incising...
5938948 Plasma arc spot welding of car body steels containing vaporizable ingredients  
Method of one side spot welding of a metallic auto body construction containing vaporizable coatings or ingredients, the construction having overlapping metal plys, comprising: impinging a plasma...
5938944 Plasma transferred wire arc thermal spray apparatus and method  
A plasma transferred wire arc thermal spray apparatus and method producing an extended-arc and supersonic plasma jet stream for applying a dense metallic coating on a substrate, such as a concave...
5935461 Pulsed high energy synthesis of fine metal powders  
Repetitively pulsed plasma jets generated by a capillary arc discharge at high stagnation pressure (>15,000 psi) and high temperature (>10,000 K) are utilized to produce 0.1-10 μm sized...
5935460 Method of performing high-efficiency machining by high-density radical reaction using a rotating electrode, device for performing the method and the rotating electrode used therefor  
There are provided a method for performing high-efficiency machining by high-density radical reaction using a rotating electrode, in which a large amount of the reaction gas is supplied to a...
5928547 High power current limiting polymer devices for circuit breaker applications  
A novel multi-layer current limiting PTC polymer device comprising at least two layers of a conductive polymer composition with electrodes attached thereto characterized by having a low contact...
5928532 Method of detecting end point of plasma processing and apparatus for the same  
When processing using a plasma is performed for an object to be processed, a photodetecting unit sequentially detects emission of two active species having specific wavelengths in a designated...
5904866 Method of sterilizing electrically, non-conductive, pressure-sensitive containers having a filling opening  
A device for sterilizing the inner surfaces of pressure sensitive containers with ionized particles has an evacuable chamber which takes up the containers. The electrodes allocated to a container...
5900169 Safety circuit for a blow forward contact start plasma arc torch  
A safety circuit is utilized in a blow forward contact start plasma arc torch to extinguish the current to the torch upon determination of an unsafe operating condition. The torch includes a torch...
5895587 Cook-in package and method of making same  
An improved food package comprises a cook-in film encasing an in situ aqueous medium cooked meat product. The film has a polymeric olefin containing inner surface in adhering relation to the cooked...
5893986 Method of controlling a plasma arc cutting torch  
A method of controlling a plasma are torch in cutting or marking a workpiece along a path of travel having a starting point and stopping point in accordance with a predetermined program and in...
5888638 Sealing element, particularly for shut-off and regulating valves, and process for its production  
A sealing element is made up of a shut-off body with a sealing surface; a bonding layer component provided on the sealing surface of the shut-off body and containing silicon and carbon; and a...
5886314 Pipe cutting apparatus  
A profiled end cut is applied to a length of stock pipe in an apparatus wherein the pipe is rotated by a drive head with a plasma cutter moved axially on a trolley in synchrony with rotation under...
5886316 Method and apparatus for treating waste and for obtaining usable by-product  
The present invention is directed to the art of treating waste using laser technology. Industrial and toxic waste materials are irradiated with a laser inside a spherical reactor chamber such that...
5874705 Method of and apparatus for microwave-plasma production  
A microwave-plasma apparatus produces a plasma substantially at or above atmospheric pressure. A vessel contains gas substantially at or above atmospheric pressure and a plasma once initiated....
5868878 Heat treatment by plasma electron heating and solid/gas jet cooling  
A workpiece is heated by first forming an ionized gas plasma around the workpiece. A positive potential is applied to the workpiece to accelerate electrons from the plasma into the workpiece. The...
5847355 Plasma-assisted microwave processing of materials  
A microwave plasma assisted method and system for heating and joining materials. The invention uses a microwave induced plasma to controllably preheat workpiece materials that are poorly microwave...
5847354 Arc transfer circuit  
A circuit for providing D.C. current from a power source having a current regulating input to a plasma system including an electrode and a nozzle with a plasma arc opening exposing the electrode to...
5844197 Arc retract circuit and method  
An arc retract circuit for use in a plasma arc system with a torch having an electrode and a nozzle, a power supply for providing a D.C. current, a power circuit for connecting the power supply...
5841111 Low resistance electrical interface for current limiting polymers by plasma processing  
A novel current limiting PTC polymer device comprising a conductive polymer composition with electrodes attached thereto characterized by having a low contact resistance and a method of producing...
5831237 Plasma arc power system and method of operating same  
A plasma system including a torch having an electrode and nozzle with a plasma arc opening exposing the electrode to a workpiece and an input transformer with a primary winding network and a...
5821493 Hybrid laser and arc process for welding workpieces  
A welding process in which laser radiation is trained on the seam area fod between two sheet-metal workpieces, one of which has an edge projecting above the other. In addition, the arc is guided...
5808270 Plasma transferred wire arc thermal spray apparatus and method  
A plasma transferred wire arc thermal spray apparatus and method producing an extended-arc and supersonic plasma jet stream for applying a dense metallic coating on a substrate, such as a concave...
5796067 Plasma arc torches and methods of operating and testing the same  
A plasma arc torch comprises relatively displaceable electrode and nozzle components having first and second positions relative to one another in which the electrode respectively contacts the...
5773787 Plasma-gun voltage generator  
The Plasma-Gun Voltage-Generator (PVG) uses a pulsed plasma-flow to displace magnetic flux, thereby inducing high voltages across multi-turn coils. Typical operating parameters are voltages of 0.5...
5773788 Gas mixtures for plasma arc torch cutting and marking systems  
A method of operating a plasma arc torch for marking a metallic workpiece spaced a stand-off distance from the torch utilizes a torch that includes a body, an electrode, and a nozzle mounted in the...
Matches 151 - 200 out of 448 < 1 2 3 4 5 6 7 8 9 >