Heating inventions 05/07

20070122761 - Gas cooling type vacuum heat treating furnace and cooling gas direction switching device therefor: A gas cooling type vacuum heat-treating furnace according to the present invention, includes a gas cooling furnace comprising a cooling chamber in which an article to be heat-treated is stationarily set, and defining therein a gas passage in a vertical direction, a gas cooling and circulating device for cooling and... Agent: Griffin Butler Whisenhunt & Szipl LLP Suite Ph-1

20070122762 - Injection of waste-derived materials into pre-calcining stage of a clinker production system: A method for producing clinker in a system having a rotary kiln and a pre-calciner, waste material is introduced into the inlet end of the pre-calciner to serve as secondary fuel for pre-calcining raw mix also fed into the pre-calciner. The waste material is substantially completely combustible and exothermic. In... Agent: Maginot, Moore & Beck, LLP Chase Tower

20070117061 - Device and method for heating up extrusion dies prior to their installation in an extruder: The invention relates to a device for heating up extrusion dies prior to their installation in an extruder, whereby the dies are heated up to a prescribed temperature and kept at this temperature. The device is characterized in that it comprises a gas-tight and thermally insulated oven housing (50) that... Agent: Marshall, Gerstein & Borun LLP

20070111151 - Surface modified quartz glass crucible and its modification process: A surface modified quartz glass crucible and a process for modifying the crucible includes a layer of a metal oxide on the whole or a part of the inside and/or outside of the crucible, and baking it. At least an inside surface of the crucible is coated with a said... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.