Patents Assigned to Electroschmelzwerk Kempten GmbH
  • System of converting environmentally pollutant waste gases to a useful product
    Patent number: 5571483
    Abstract: A continuous flow method and system is provided for converting environmentally pollutant by-product waste gases emitted during the manufacture of a product in a first manufacturing plant to a useful product in a second manufacturing plant such that release of the gases into the atmosphere may be prevented.
    Type: Grant
    Filed: January 26, 1990
    Date of Patent: November 5, 1996
    Assignees: Exolon-ESK Company, Electroschmelzwerk Kempten GmbH
    Inventors: Hans Pfingstl, Walter Martyniuk, Armand Ladage, Tom McNally, Robert Myers, Ludwig Eberle
  • Process for the production of oxygen-free copper casting and moldings
    Patent number: 4118256
    Abstract: A process for the production of oxygen free copper castings and moldings, which contain 0.05 to 0.2% by weight of boron as micro-alloy element, by deoxidation of oxygen containing copper melts by means of calcium hexaboride, comprising introducing 0.3-1% by weight of a CaB.sub.6 into the copper melt, the CaB.sub.6 containing at least 3% C calculated on the weight of the CaB.sub.6, subsequently subjecting the cooled melt, if desired while molding the same, to a solution annealing operation and following up with a storage for an extended time.
    Type: Grant
    Filed: November 4, 1976
    Date of Patent: October 3, 1978
    Assignee: Electroschmelzwerk Kempten GmbH
    Inventors: Karlheinz G. Schmitt-Thomas, Alfred Lipp, Karl Schwetz