Industrial electric heating furnaces inventions 09/09

20090238234 - Method for operating a melt-metallurgic furnace, and furnace: The invention relates to a method for operating a melt-metallurgic furnace (2), particularly an arc furnace, during the operation of which a number of operating parameters are maintained within predetermined thresholds, wherein for this purpose a control or regulating device (1) is utilized. In order to obtain greater efficiency of... Agent: K.f. Ross P.C.

20090232181 - Systems and methods for controlling the electrode position in an arc furnace: Embodiments of a system for controlling the position of an electrode in an arc furnace comprise an arc furnace comprising a molten bath and slag disposed over the molten bath, wherein the slag contacts the molten bath at an interface. The system further comprises an electrode comprising a lower tip,... Agent: Dinsmore & Shohl LLP

20090225806 - Dental furnace: The invention relates to a dental furnace with a heating chamber, with at least two heating elements acting on the heating chamber and one control apparatus, which interacts with the heating elements, for the voltage supply to the heating elements. The control apparatus (22) supplies at least two heating elements... Agent: John C. Thompson

20090219968 - Control system for an arc furnace: A control system for and method of controlling a vertical position of at least one electrode of an arc furnace, where the arc furnace comprises a furnace transformer having a primary, input side and a secondary, output side which is electrically connected to the at least one electrode, the control... Agent: Renner Otto Boisselle & Sklar, LLP