Heating inventions 09/07

20070212657 - Change-over apparatus for cooling gas passages in vacuum heat treating furnace: A change-over apparatus for cooling a gas passage is provided with a cooling chamber and a gas cooling and circulating system. The apparatus is further provided with a stationary partition plate and a slidable shield plate. The stationary partition plate has a suction opening and a discharge opening which are... Agent: Griffin Butler Whisenhunt & Szipl LLP Suite Ph-1

20070207432 - Method of mixing high temperature gases in mineral processing kilns: A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic energy into the kiln to reduce or eliminate stratification of kiln gases. The method can be applied to mix gases in... Agent: Barnes & Thornburg LLP

20070207433 - Oven apparatus and seasoning method therewith: An oven apparatus including wall members which constitute an oven wall defining internal and external regions of an oven and partition walls forming oven compartments within the oven by defining internal and external regions thereof, the wall members including an inner wall panel facing an internal side of the oven... Agent: Ip Group Of Dla Piper US LLP