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| Number | Title | Issue Date |
| 5021084 | Process for improving high-temperature alloys This invention is the electron beam evaporation and deposition(EBED) process which produces high purity and ultrafine grain size in high-temperature and reactive metal alloys. These properties are important in metals used in aircraft gas turbine component... | 06/04/1991 |
| 4919191 | Molten-metal forming method and apparatus which are bottom-loading, bottom-pouring and bottom-unloading The bottom of a solid metal charge melts to fill a form below the charge. During melting, usually, the metal that enters the form remains continuous with an unused solid part of the charge. After cooling, the formed metal is removed together with the unus... | 04/24/1990 |
| 4917852 | Method and apparatus for rapid solidification A novel process for rapid solidification of ceramic melts combines certain features of cooling by atomization and by contact with chilling surfaces. The material to be solidified is divided into fine liquid dropletes that are propelled by a rapid flow of ... | 04/17/1990 |
| 4912296 | Rotatable plasma torch An improved plasma torch having a rugged configuration, which is easier to start, and which eliminates the need for fragile and possibly metal contaminating insulators from the lower end of the plasma torch. To prevent double arcing from occurring and to ... | 03/27/1990 |
| 4905538 | Camshaft A camshaft of a valve operating system for an internal combustion engine, is formed of iron-based alloy casting and has cam sections, each of which is in slidable contact with a heat resistant tip of a rocker arm. The cam section is formed at its surface ... | 03/06/1990 |
| 4900894 | Method of heating a quartz glass tube A method of heating a quartz glass tube with microwaves, which method comprises supplying a gas for plasma generation in the quartz glass tube, applying microwaves to the quartz glass tube so as to generate a hot plasma in the quartz glass tube and to pre... | 02/13/1990 |
| 4822632 | Ionizing plasma lubricant method A method to reduce high breakout and sustaining forces between slidable surfaces includes applying a film of lubricant to at least one of the surfaces and subjecting the lubricant and surface to an ionizing plasma. The invention includes articles having s... | 04/18/1989 |
| 4783218 | Process for producing spherical refractory metal based powder particles A powdered material and a process for producing the material are disclosed. The powdered material consists essentially of refractory metal based spherical particles and is essentially free of elliptical shaped material and elongated particles having round... | 11/08/1988 |
| 4783216 | Process for producing spherical titanium based powder particles A powdered material and a process for producing the material are disclosed. The powdered material consists essentially of titanium based spherical particles which are essentially free of elliptical shaped material and elongated particles having rounded en... | 11/08/1988 |
| 4778515 | Process for producing iron group based and chromium based fine spherical particles A powdered material and a process for producing the material are disclosed. The powdered material consists essentially of iron group based and chromium based spherical particles. The material is essentially free of elliptical shaped material and elongated... | 10/18/1988 |
| 4674683 | Plasma flame spray gun method and apparatus with adjustable ratio of radial and tangential plasma gas flow A plasma gun has a hollow generally cylindrical anode nozzle member and coaxially disposed therein a cylindrical cathode member, the members co-acting to form an interior passage for plasma forming gas. At one end, within the body of the gun, the passage ... | 06/23/1987 |
| 4673409 | Implant with attachment surface An implant for use in a human body having an integral attachment surface adapted to permit tissue ingrowth. The attachment surface has an inner attachment surface and a multiplicity of spaced posts projecting from the inner attachment surface. The posts e... | 06/16/1987 |
| 4633055 | Plasma cutting system The plasma cutting system of the invention includes a constant height plasma arc cutter, a rolling table and a plasma cutter carrying gantry driven from opposite sides. The rolling table is rolled from a loading position where metal sheets are positioned ... | 12/30/1986 |
| 4627990 | Method of and apparatus for supplying powdery material A method of and an apparatus for supplying a powdery material to a workpiece to be processed thereby. According to the method, the powdery material is discharged from a hopper and metered, and then fed into a tube extending in the vicinity of the workpiec... | 12/09/1986 |
| 4626654 | Metallurgical plasma melting process A metallurgical plasma melting process wherein a plasma burner and a separate start-up burner disposed alongside same in the same port have their axes intersecting in the furnace at an acute angle. Only the start-up burner is operated initially to form a ... | 12/02/1986 |
| 4595817 | Method of mechanical machining of workpieces using a plasma arc to heat the cutting zone This invention relates generally to machine engineering, and more particularly to methods of thermomechanical machining with plasma arc heating of the cutting zone. The method according to the invention can be used with advantage for rough-machining high-... | 06/17/1986 |
| 4591454 | Apparatus and method for melting and treating metal wastes An apparatus for melting and treating metal wastes including radioactive wastes, including a melting and treating vessel formed of the upper surface of a truck and split mold, wherein metal wastes are charged into the vessel in a closed system and melted ... | 05/27/1986 |
| 4567346 | Arc-striking method for a welding or cutting torch and a torch adapted to carry out said method The invention relates in particular to plasma cutting. The nozzle (5) is freely slidably mounted in the torch body so as to come into contact with the electrode if the torch is applied against the work piece (16). By disengaging the torch, an arc is struc... | 01/28/1986 |
| 4563566 | Method of manufacturing particles having high surface areas and a particle made by the method A method of manufacturing porous, irregularly-shaped particles having high surface areas and a particle made thereby is disclosed wherein small grains of a material are adhered together to form larger particles of porous, irregularly shaped form having hi... | 01/07/1986 |
| 4537745 | Method of producing copper-chromium fusion alloys as contact material for vacuum power switches A method of producing copper-chromium fusion alloys having a chromium content of at least 25% by mass and at most 60% by mass with a homogeneous macrostructure without lattice defects and without shrink holes or pipes, which can be used as contact materia... | 08/27/1985 |
| 4499643 | Process for manufacturing a piston ring A process for manufacturing a piston ring is disclosed wherein web-like first metal member which will form a base of a piston ring and web-like second metal member which will form a wear resistant layer of the piston ring are separately fed and joined tog... | 02/19/1985 |
| 4448802 | Method and apparatus for evaporating material under vacuum using both an arc discharge and electron beam A method of evaporating an evaporative substance under vacuum comprises bombarding the evaporative substance with electrons from a low voltage arc discharge established between a cathode and an anode which is located in an evaporation chamber and simultan... | 05/15/1984 |
| 4432942 | Apparatus for filling a container with radioactive solid wastes In apparatus for filling a container suitable for storage with radioactive solid wastes arising from atomic power plants or the like, a plasma arc is irradiated toward a portion of the wastes to melt the portion of the wastes; portions of the wastes are s... | 02/21/1984 |
| 4400408 | Method for forming an anticorrosive coating on a metal substrate A method for forming an anticorrosive coating on the surface of a metal substrate, which comprises, in one embodiment, (1) coating the surface of the metal substrate with an anticorrosive metal capable of forming an alloy with the substrate metal and/or a... | 08/23/1983 |
| 4339546 | Production of methanol from organic waste material by use of plasma jet Methanol is produced from an organic waste material such as sewage by a process wherein an arc heater or "plasma jet" performs novel process steps including: (1) partially vaporizing an organic sewage sludge (a semi-liquid material produced by bacterial d... | 07/13/1982 |
| 4288679 | Method of microdrilling metal workpieces using a power laser A laser microdrilling method uses a power laser beam the action of which causes solid workpiece metal to be transformed into both liquid and vapor phases. In order to improve the surface finish and dimensional accuracy of a hole formed, the workpiece is h... | 09/08/1981 |
| 4105888 | Arc heater apparatus for producing acetylene from heavy hydrocarbons Arc heater apparatus and method for producing acetylene from heavy hydrocarbons characterized by arc heater means for producing arc heated plasma gas forming a downstream reaction zone, wall means forming a plenum chamber having a substantially vertical a... | 08/08/1978 |
| 4105437 | Method and apparatus for recovering metals The disclosure relates to a method and apparatus for recycling, smelting, and refining waste metal material and low grade metal material. A magneto-plasma provides a high temperature for extracting metals. The magneto-plasma is comprised of an alternating... | 08/08/1978 |
