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| Number | Title | Issue Date |
| 7432469 | Arc spraying torch head The invention provides an arc spraying torch head including: a pair of spray material guides attached to a head body so as to face forward and guiding a flexible wire-like spray material inserted therein; a main air nozzle attached to the head body, and jetting main... | 10/07/2008 |
| 7341763 | Thermal spraying device and thermal spraying method A thermal spraying device with a first blowing mechanism for lengthening a droplet formed near the tips of thermal spraying materials by arc, and a second blowing mechanism for a blowing a tip portion of the lengthened droplet to atomize it into droplets and to scat... | 03/11/2008 |
| 7329828 | Method for inert gas welding or inert gas soldering of workpieces comprising identical or different metals or metal alloys by means of an additional Zn/Al metal The invention relates to a method for inert gas welding or inert gas soldering of workpieces (A) made of steel, aluminum, magnesium, copper, or the alloys thereof with workpieces (B) made of steel, aluminum, magnesium, copper, or the alloys thereof by using an addit... | 02/12/2008 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
| 7230203 | Protective cap for a contact pipe in a welding torch in addition to a welding torch equipped with said cap The invention relates to a protective cap for at least one contact pipe of a welding torch, the pipe or pipes having a respective bore for guiding and contacting a respective welding rod that is fed through the pipe or pipes. The cap comprises a housing consisting o... | 06/12/2007 |
| 7120217 | Phase-locked loop circuit In a PLL circuit including a voltage-controlled oscillator, a phase detector and a final control element, the final control element contains two separate channels, between the phase detector and the voltage controlled oscillator, wherein one channel processes the us... | 10/10/2006 |
| 7094987 | Hollow thermal spray electrode wire having multiple layers An electrode wire for use in a thermal spray process. The electrode wire is formed with a first layer of a first material formed as tubular outer layer and a second layer of a second material, different from the first material, formed as a tubular inner layer locate... | 08/22/2006 |
| 6936118 | Process of forming a composite coating on a substrate Precursor-based methods for the production of metal-matrix composite (MMC) coatings on steel and aluminum substrates for improved wear, corrosion and oxidation resistance have been made. Wire and surface precursors are deposited on the substrate by controlled therma... | 08/30/2005 |
| 6924004 | Apparatus and method for synthesizing films and coatings by focused particle beam deposition A particle beam deposition apparatus includes a particle source for generating a plurality of particles in suspended form, an expansion chamber, and a deposition chamber connected to the expansion chamber by an aerodynamic focusing stage, and containing a substrate.... | 08/02/2005 |
| 6781083 | Weld overlay system A process for applying weld overlay material to a tube with a single pass of a weld head. A gas tungsten arc welding process with high frequency wave pulse current is preferably used to apply the overlay material. The overlay material is preferably in the form of we... | 08/24/2004 |
| 6671647 | Method and equipment for assessing the life of members put under high in-service temperature environment for long period For each component which is used at a high in-service temperature for a long period, its creep damage degree is approximated by a relational expression containing the Larson-Miller parameter. The creep damage degree is estimated by an approximation expres... | 12/30/2003 |
| 6610959 | Single-wire arc spray apparatus and methods of using same Material droplet generator systems utilizing single-wire arc spray apparatus and methods are provided. In some embodiments, the apparatus include a single consumable, first wire electrode fed through a gas nozzle and a non-consumable, second electrode out... | 08/26/2003 |
| 6414258 | Base carrier for tracklaying vehicle and hard facing method The objects of the invention are: a weld overlay having stable quality is provided; cracks which have been created on a weld overlay during engagement of a part with its mating member are prevented from extending; and adverse effects on the wear of mating... | 07/02/2002 |
| 6342688 | Method for preparing iridium crucibles for crystal growth A method of preparing an iridium crucible for crystal growth. As a form of preventive maintenance or during a repair, an iridium crucible is prepared by a method of surface conditioning by way of weld puddling the entire surface of the bottom or on the si... | 01/29/2002 |
| 6307178 | Method for welding shaped bodies made of carburized heat-resistant steel The invention relates to a method for welding shaped bodies of carburized heat-resistant austenitic steel. The inventive method is characterized in that carburized steel parts to be welded are preheated to temperatures of 700 to 900 degrees Celsius before... | 10/23/2001 |
| 6297466 | Method for repairing steel spray-formed tooling with TIG welding process A machine tool or die that is fabricated from thermally spray-formed steel is repaired on the factory floor by first cleaning the area to be repaired to removed all dirt and impurities. Next the surface is prepared by means of preheating the surface with ... | 10/02/2001 |
| 6245390 | High-velocity thermal spray apparatus and method of forming materials The high-velocity oxygen-fuel or air-fuel apparatus and method to apply low-oxidized and high-density coatings and bulk materials by spraying of non-fused particles, said apparatus comprises a catalytic member in internal burner. Metallic or ceramic catal... | 06/12/2001 |
| 6148514 | Method for butt-end electromechanical splicing A process and system for repairing electromechanical cables having an external armor wire layer using a butt welding technique and an arc vanishing machine. A short (break) in a cable having both an external and inner helically wrapped wire layer over an ... | 11/21/2000 |
| 6034344 | Method for applying material to a face of a flow directing assembly for a gas turbine engine A method for applying a material to the face 16,18 of a rotor blade 10 is disclosed. The method includes blocking the flow of molten material to adjacent structure of a rotor blade by disposing a pad against the structure.... | 03/07/2000 |
| 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 and entrained molten droplets. The quality of coatings prod... | 12/14/1999 |
| 5935458 | Wire thermal spray apparatus with dual motors A wire thermal spray gun such as a two-wire arc gun has a speed regulator for a DC pull motor in the gun. Armature current corresponds to pulling torque on the pull motor depending on load resistance of the wires. A DC push motor is between a wire supply ... | 08/10/1999 |
| 5914055 | Rotor repair system and technique A system for repairing worn, distorted, cracked, or degraded portions of high temperature rotors such as those used in high-pressure and reheat steam turbines is disclosed. The repairs are applicable to low alloy steels generally described in ASTM Specifi... | 06/22/1999 |
| 5821492 | Radiation and regeneratively cooled arc jet device for thin diamond film deposition A radiation and regeneratively cooled arc jet device includes improvements designed to provide higher gas enthalpy operation for thin diamond film deposition. A series of circumferentially and axially spaced gas injection holes are provided in the cylindr... | 10/13/1998 |
| 5796064 | Method and apparatus for dual coat thermal spraying cylindrical bores Disclosed are a method and apparatus for coating the interior surface of a cylinder wherein separate consumable electrodes are fed to an arc formed between a rotating non-consumable electrode and directing an atomizing gas through the arc formed to carry ... | 08/18/1998 |
| 5707693 | Method and apparatus for thermal spraying cylindrical bores Disclosed are a method and apparatus for coating the interior surface of a cylinder wherein a consumable electrode is fed to an arc formed between a rotating non-consumable electrode and directing an atomizing gas through the arc formed to carry the molte... | 01/13/1998 |
| 5472749 | Graphite encapsulated nanophase particles produced by a tungsten arc method A method of synthesizing encapsulated nanocrystals inside protective shells is disclosed. This method produces nanocrystals of metals, alloys, and compounds which are individually encapsulated by protective graphite shells which completely separate the na... | 12/05/1995 |
| 5408066 | Powder injection apparatus for a plasma spray gun A powder injection apparatus for a plasma spray gun includes a block having channelling therein for liquid coolant. A powder port extends through the block in proximity to the channelling so as to be cooled by coolant flowing therein. The port has a powde... | 04/18/1995 |
| 5396041 | Drill resistant hard plate and method for manufacture thereof A highly drill-resistant element, suitable for inclusion into the walls and/or doors of a security container to resist drilling to access the contents of the container is formed by welding onto a steel plate formed of REPUBLIC 100-AR (TM) steel a layer of... | 03/07/1995 |
| 5321224 | Methods of modifying surface qualities of metallic articles and apparatuses therefor A method of modifying qualities of a metallic article at a particular surface of the article comprises the step of melting the surface by imparting a flux of high density energy to the surface to form a molten metal layer and the step of adding heat resis... | 06/14/1994 |
| 5319179 | Method and apparatus for welding workpieces made of superalloys Apparatus for the deposition welding or the joint welding of a workpiece made of a superalloy by an arc welding process in which the workpiece is supported in a protective-gas container into which is placed a welding electrode and an induction coil for pr... | 06/07/1994 |
| 5308409 | Method of strengthening aluminum castings in a specified local part A method of strengthening an aluminum casting by modifying qualities of a specified part thereof comprises the steps of forming a weld overlay on the specified part using powders made of heat resisting element and remelting the specified part, now overlai... | 05/03/1994 |
| 5293026 | Hardsurfacing material for engine components and method for depositing same A method for applying a hardsurfacing material to a workpiece such as a reciprocating aircraft engine tappet in which a carbon-containing wear resistant material in powder form is applied to a surface of the workpiece in the molten state while a sharp tem... | 03/08/1994 |
| 5278391 | Unbalance correction method for rotating body A method for exactly and effectively correcting an unbalance of a rotating body such as a turbine assembly for a torque converter without worsening a quality of the rotating body. A filler metal is brazed to a welding position by TIG welding while changin... | 01/11/1994 |
| 5245153 | Depositing metal onto a surface In order to deposit metal onto a surface such as a cylindrical surface, an arc spraying method is used with a consumable electrode (16), a non-consumable electrode (18) and a jet of atomising gas (22) blown through the arc (20) in a radial direction to pr... | 09/14/1993 |
| 5114499 | Method of forming chilled layer The surface of a metal workpiece is remelted by a heat producing energy beam so as to form a molten metal layer thereon. While remelting the surface, a magnetic field is generated coaxially with the energy beam and is applied across the molten metal layer... | 05/19/1992 |
| 5109150 | Open-arc plasma wire spray method and apparatus The plasma-arc torch is of the type wherein a thermally ionizable gas is ected past a non-consumable cathode electrode and through the constricted orifice of a nozzle. An arc is established between the non-consumable electrode and the nozzle to initiate ... | 04/28/1992 |
| 4943698 | Hardfacing powders The occurrence of porosity in hardfacing deposits produced by plasma transferred arc welding is significantly reduced by blending a porosity reducing agent preferably aluminum and/or manganese, with the hardfacing powder.... | 07/24/1990 |
| 4859489 | Method of coating a metal gas-pressure bottle or tank Gas-pressure bottles are internally coated by plugging the mouth of the bottle and evacuating the bottle. The coating material is formed by striking repeatedly electric arcs between the electrode deposed within the bottle and the wall of the latter.... | 08/22/1989 |
| 4837417 | Method of hard-facing a metal surface A method of hard-facing is disclosed in which matrix metal is melted on the surface of a metal base member being hard-faced along with a portion of the metal base member by a non-consumable electrode moving over the matrix metal. The arc between the elect... | 06/06/1989 |
| 4830266 | Method of producing weld metal tubing empoying a reusable mandrel A method of producing substantially distortion-free weld metal tubing wherein a mandrel and a thin metal layer covering the mandrel are used to provide structural support for a starter tube while a weld metal is being deposited on the exterior surface of ... | 05/16/1989 |
