Patent application number | Description | Published |
20080268164 | Apparatuses and Methods for Cryogenic Cooling in Thermal Surface Treatment Processes - Apparatuses and methods for preventing the degradation of one or more mask materials during a thermal surface treatment process of a substrate having the steps of mounting at least one mask comprising one or more mask materials onto a substrate; thermally surface treating a surface of the substrate which increases the temperature of the substrate; and cooling the one or more mask materials with cryogenic fluid from at least one cooling means directed at the substrate. | 10-30-2008 |
20080283153 | FURNACE ATMOSPHERE ACTIVATION METHOD AND APPARATUS - A gas injector including in which a gas is passed through high-voltage/low-current electrical discharges before being discharged into the chamber of a thermal treatment furnace. The electrical activation of the gas accelerates desirable reactions between the gas, gases in the furnace chamber, and the chamber workload. Preferably, a hot electrode is electrically charged and the other parts of the gas injector and the furnace are grounded. | 11-20-2008 |
20100275620 | APPARATUS AND METHOD FOR PROVIDING CONDENSATION- AND FROST-FREE SURFACES ON CRYOGENIC COMPONENTS - Apparatus that prevents the buildup of frost or ice on plumbing in a cryogenic delivery system ( | 11-04-2010 |
20110036555 | METHOD AND APPARATUS FOR DISCHARGING A NON-LINEAR CRYOGEN SPRAY ACROSS THE WIDTH OF A MILL STAND - A method and apparatus for determining a non-linear cryogenic cooling profile ( | 02-17-2011 |
20110083447 | APPARATUS AND METHOD FOR MONITORING AND REGULATING CRYOGENIC COOLING - An apparatus and method for monitoring and/or controlling cryogenic cooling by measuring the opacity of the vapor cloud ( | 04-14-2011 |
20120055592 | Method of Metal Processing Using Cryogenic Cooling - Described herein are a method, an apparatus, and a system for metal processing that improves one or more properties of a sintered metal part by controlling the process conditions of the cooling zone of a continuous furnace using one or more cryogenic fluids. In one aspect, there is provided a method comprising: providing a furnace wherein the metal part is passed therethough on a conveyor belt and comprises a hot zone and a cooling zone wherein the cooling zone has a first temperature; and introducing a cryogenic fluid into the cooling zone where the cryogenic fluid reduces the temperature of the cooling zone to a second temperature, wherein at least a portion of the cryogenic fluid provides a vapor within the cooling zone and cools the metal parts passing therethrough at an accelerated cooling rate. | 03-08-2012 |
20120118435 | Method and Apparatus for Nitriding Metal Articles - A method and apparatus for nitriding of highly-alloyed metal article is disclosed herein. In one embodiment, the method and apparatus uses at least one nitrogen source gas such as nitrogen and/or ammonia in an oxygen-free nitriding gas atmosphere, with small additions of one or more hydrocarbons. In this or other embodiments, the method and apparatus described herein is applicable to metal articles comprising iron, nickel and cobalt based alloys and which tend to form passive oxide films on at least a portion of their surface, heated to and nitrided at a certain temperature without prior surface preparation. The apparatus includes an external gas injector comprising 50-60 Hz AC, high voltage/low-current arc discharge electrodes, activating the nitriding atmosphere stream on its way from source to nitriding furnace. | 05-17-2012 |
20120216550 | APPARATUS AND METHOD FOR CONTROLLING THE TEMPERATURE OF A CRYOGEN - A fluid spray device system ( | 08-30-2012 |
20130008565 | METHOD AND APPARATUS FOR HEAT TREATING A METAL - Described herein is a method that can be used for heat treating a metal in at least one of the following processes: carburizing, carbonitriding, nitrocarburizing, and neutral carbon potential annealing operations that are used in a 1 atmosphere pressure furnace and in an atmosphere that is oxygen free and comprises nitrogen and at least one hydrocarbon. | 01-10-2013 |
20130118186 | Method and Apparatus for Quenching of Materials in Vacuum Furnace - A method of quenching a material by injecting a cryogenic fluid into a cooling stream and simultaneously venting gas from the cooling stream, in order to maintain a desired target pressure in a chamber containing the material. In a examplary application of the method, the quenching is a step in the heat-treatment of a metal and the chamber is part of a vacuum furnace. Also disclosed is a method of supplying a cryogenic fluid to a process in which the amount of cryogenic fluid necessary to perform the process is transferred from a storage vessel to a supply vessel via a supply line, after which the supply line is closed. An elevated pressure is maintained by vaporization of a relatively small amount of the cryogenic fluid that is allowed to build in a pressure vessel that is in fluid communication with the supply vessel. | 05-16-2013 |
20130224385 | Method and Apparatus for Galvanizing an Elongated Object - A method and apparatus for galvanizing an elongated object, such as, but not limited to, a metal strip, wire, or rod, using gaseous nitrogen, a mixture of gaseous and liquid nitrogen, and combinations thereof is described herein. | 08-29-2013 |