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| Number | Title | Issue Date |
| 7432470 | Surface cleaning and sterilization Methods and apparatus are provided for igniting, modulating, and sustaining a plasma for various plasma processes and treatments. Such treatments include cleaning and sterilizing parts. In some embodiments, a plasma is ignited by subjecting a gas in a multi-mode pro... | 10/07/2008 |
| 7432468 | Plasma processing apparatus and plasma processing method A microwave plasma processing apparatus 100 allows microwaves, passed through a plurality of slots 37, to be transmitted through a plurality of dielectric parts 31 supported by beams 26, raises a gas to plasma with the transmitted microwa... | 10/07/2008 |
| 7397013 | Plasma lineation electrode A plasma spray device is provided. The plasma spray device includes a plasma chamber region for having a plasma formed and a throat region coupled to the plasma chamber region. The throat region has an end surface and an axial bore. The axial bore is formed substant... | 07/08/2008 |
| 7371992 | Method for non-contact cleaning of a surface A flame torch can be used to clean the surface of a contact-sensitive object, such as a glass optic, extremely thin workpiece, or semiconductor wafer by providing a reactive precursor gas to the feed gases of the torch. Reactive atom plasma processing can be used to... | 05/13/2008 |
| 7326874 | Vented shield system for a plasma arc torch Vented shield systems for plasma arc torches are provided that comprise a shield cup body defining a distal end portion, a vented retainer secured to the distal end portion of the shield cup body, and a shield cap secured to the vented retainer. The vented retainer ... | 02/05/2008 |
| 7309842 | Shielded monolithic microplasma source for prevention of continuous thin film formation A monolithic microplasma source includes a dielectric substrate having an outer surface that is exposed to a time varying electric field. A gap layer is positioned on an inner surface of the dielectric substrate. A shield including a slit is positioned on the gap la... | 12/18/2007 |
| 7291804 | Plasma-spraying device Example embodiments relate to a plasma-spraying device for spraying a powdered material, including electrodes, which may form a plasma channel having an inlet end and an outlet end, and a unit for supplying the powdered material to the plasma channel. The powder sup... | 11/06/2007 |
| 7191930 | Electrostatic methods and apparatus for mounting and demounting particles from a surface having an array of tacky and non-tacky areas Methods and associated apparatus are disclosed for use in mounting particles on and de-mounting particles from a substrate having an array of tacky and non-tacky areas. The particles can be either electrically conducting or electrically non-conducting. Selection of ... | 03/20/2007 |
| 7186947 | Process monitor for laser and plasma materials processing of materials A method for monitoring the processing of a workpiece includes directing an incident laser beam onto the workpiece and measuring a signal emitted from the workpiece. At least two signals are generated by a detector based upon the emitted signal. A workpiece processi... | 03/06/2007 |
| 7173211 | Device for plasma incision of matter with a specifically tuned radiofrequency electromagnetic field generator A device to place an incision into matter with a harmonious plasma cloud. A radiofrequency generator system produces pulsed or continuous electromagnetic waveform which is transmitted by an active transmitter incising electrode tip. This generated electromagnetic wa... | 02/06/2007 |
| 7141755 | Accelerated weathering test method The present invention provides an accelerated weathering test method, which gives the results having a high correlation with the results of natural exposure and can significantly reduce a test duration. An accelerated weathering test method for a coating film... | 11/28/2006 |
| 7087856 | System and method for determining an operational condition of a torch A system and associated method for determining an operational condition of a gas torch are provided. The system includes a diode device that is electrically connected between the workpiece and the nozzle. A sensing circuit is configured to provide an electric potent... | 08/08/2006 |
| 7087855 | Plasma cutting apparatus and control unit thereof Cutting quality of the product, in particular, hole cutting quality, in plasma arc cutting is improved. A control unit, which controls a plasma cutting apparatus for cutting a product from a plate material by moving a plasma torch at a cutting speed along a cutting ... | 08/08/2006 |
| 7084368 | Thermal cutting machine and cutting method using same A thermal cutting machine and a cutting method using the same are described, which employ a simple, long-life torch hood for effectively shutting off spatter, the torch hood enabling easy supervision of the cut condition of a workpiece and easy replacement of the co... | 08/01/2006 |
| 7067762 | Plasma cutting process and machine A plasma cutting machine is provided in which a dross adhesion inhibitor is jetted from a plasma torch toward the cutting start position (piercing position) of the object material. A dross adhesion inhibitor supply flow path for feeding the dross adhesion inhibitor ... | 06/27/2006 |
| 7049540 | Process and apparatus for cutting or welding a workpiece A metal jet cutting system, which includes a jetting heat, a heater and a power source, is used for modifying a workpiece. The jetting head includes a crucible and an inlet for receiving a feed stock of a conductive material. The heater melts the conductive material... | 05/23/2006 |
| 7022935 | Plasma-cutting torch with integrated high frequency starter The present invention is directed to a system including a plasma cutting torch having an output electrode and a plasma cutter starting circuit configured to generate a pilot arc at the output electrode. ... | 04/04/2006 |
| 7015416 | Plasma cutting torch speed modulation A method and a system for the plasma arc cutting of a workpiece with automatic adaptation of the characteristics of the plasma jet by making various corrections, simultaneously and in real time, to several parameters, including the cut path. ... | 03/21/2006 |
| 7007737 | Slab handling apparatus A slab handling apparatus comprising a foundation structure, a plurality of longitudinally spaced buffer members positioned on the foundation structure, and a plurality of longitudinally spaced roller assemblies connected to the respective buffer members with a lost... | 03/07/2006 |
| 6979796 | Method and apparatus for proper alignment of components in a plasma arc torch A plasma arc torch includes at least one consumable component in coaxial relationship with another component of the torch. At least two compressible components are disposed between longitudinally extending coaxial surfaces of the consumable component and the second ... | 12/27/2005 |
| 6947802 | Centralized control architecture for a laser materials processing system Apparatus, systems, and methods for monitoring the processing of a workpiece that includes directing an incident laser beam onto the workpiece and using an optical detector for measuring a signal emitted from the workpiece as a result of the incident laser beam. The... | 09/20/2005 |
| 6933460 | Method and device for plasma treatment of moving metal substrates The invention relates to a method of treatment, in particular cleaning and/or heating, for a metal substrate (1) fed in a substantially continuous manner through a vacuum chamber (3), having a treatment zone in which an electric discharge (10), ... | 08/23/2005 |
| 6933463 | Main arc ignition device and main arc ignition control method of plasma cutting machine A main arc ignition method capable of extending lives of a plasma electrode and a nozzle. For this purpose, before or immediately after starting arc, a plasma torch is supplied with a plasma gas at least either at a lower flow rate or at lower gas pressure; the plas... | 08/23/2005 |
| 6914209 | Plasma arc machining method Not only damage to a nozzle caused by spatter generated during piercing is prevented but also the deterioration of the nozzle owing to a pilot arc is restrained, whereby the service life of the nozzle is significantly increased. To this end, the plasma torch is posi... | 07/05/2005 |
| 6867387 | Device for plasma incision of matter with a specifically tuned radiofrequency electromagnetic field generator A device to place an incision into matter with a harmonious plasma cloud. A radiofrequency generator system produces pulsed or continuous electromagnetic waveform which is transmitted by an active transmitter incising electrode tip. This generated electromagnetic wa... | 03/15/2005 |
| 6855907 | Metal cutting process A metal cutting process employs an apparatus including a cutting machine operable to cut two dimensional profiles in plates. The plates are transported to and from the cutting machine on carriages. The carriages are movable between a cutting, or burn position, an un... | 02/15/2005 |
| 6787731 | Method for oxyacetylene-cutting a piece of steel and device for carrying out this method The invention relates to apparatus for oxygen cutting pieces of steel. The cutter and trimmer members (5, 10) are positioned in such a manner that the cutting jet (6) is applied to the top face (1.1) of the piece (1) in a substantially ve... | 09/07/2004 |
| 6787730 | Device for plasma incision of matter with a specifically tuned radiofrequency electromagnetic field generator A device to place an incision into matter with a harmonious plasma cloud. A radiofrequency generator system produces pulsed or continuous electromagnetic waveform which is transmitted by an active transmitter incising electrode tip. This generated electromagnetic wa... | 09/07/2004 |
| 6781086 | Method for removing photoresist A method of removing photoresist from a wafer or other substrate consists of ashing the photoresist only once the wafer is spaced a predetermined distance above a wafer stage in a process chamber, so that the photoresist is removed at once from all of the surfaces o... | 08/24/2004 |
| 6772040 | Centralized control architecture for a plasma arc system The invention features a centralized control architecture for a closely-coupled plasma arc system, in which the “intelligence” of the system is integrated into a single controller. The closely-coupled plasma arc system includes a power source, an automatic proce... | 08/03/2004 |
| 6753495 | Apparatus and methods for control of a material processing device A multi-axis machine method and apparatus for the control of the motion of a material processing device is disclosed. The device has supply element and the apparatus has a supply co-ordination element. The motion of the processing device can be co-ordinated with the... | 06/22/2004 |
| 6657151 | Plasma processing device To uniformly generate plasma using microwaves in a processing vessel. To first to fourth feeding sections 141a to 141d which are evenly placed on the same plane perpendicular to an axial direction of a main coaxial line 123, four microwaves shifted in pha... | 12/02/2003 |
| 6534739 | Oxygen cutting of slabs The invention involves a process for the oxygen cutting of slabs--using one or more oxygen cutting torches--and a device for implementing the process. The process includes the steps of hanging the slab (16) using one or more electromagnets (14) separated ... | 03/18/2003 |
| 6498316 | Plasma torch and method for underwater cutting A plasma torch and method for cutting a workpiece under water directs a primary gas through a primary gas flow path in the torch to a central exit opening of the torch disposed on a longitudinal axis of the torch for exhaustion from the torch onto the wor... | 12/24/2002 |
| 6486430 | Method and apparatus for a contact start plasma cutting process An plasma cutter, including a power supply, a cutting torch (with a nozzle), a source of air and a valve, is disclosed. The cutting torch is connected to the two power source outputs (cathode and anode). Air is supplied to the nozzle through the valve fro... | 11/26/2002 |
| 6486431 | Toroidal low-field reactive gas source An apparatus for dissociating gases includes a plasma chamber that may be formed from a metallic material and a transformer having a magnetic core surrounding a portion of the plasma chamber and having a primary winding. The apparatus also includes one or... | 11/26/2002 |
| 6479785 | Device for plasma incision of mater with a specifically tuned radiofrequencty electromagnetic field generator A device to place an incision into matter with a harmonious plasma cloud. A radiofrequency generator system produces pulsed or continuous electromagnetic waveform which is transmitted by an active transmitter incising electrode tip. This generated electro... | 11/12/2002 |
| 6469274 | Oxygen arc cutting with plasma pre-heating of ferrous materials, such as structural steel workpieces An installation and a method for oxygen arc cutting of a metal workpiece containing at least a ferrous material, in particular a structural steel workpiece, which consists in: pre-heating locally a priming zone of the metal workpiece to be cut by subjecti... | 10/22/2002 |
| 6423921 | Method and apparatus for processing components in which a molten phase is produced by local energy input Apparatus and methods for processing work piece components in which a molten phase is produced by a local energy input from at least one of an electric arc, a jet of combustible gas, an electron plasma, and a laser beam. At least one transducer is include... | 07/23/2002 |
| 6414264 | Laser beam cutting method for cutting laminates for applying to the skin The invention relates to a process for cutting laminates intended for application to the skin, including the following steps. (1) a laminate having at least one film and at least one further layer is supplied, (2) the laminate is transported to a cutting ... | 07/02/2002 |
