Patents Assigned to Stein - Industrie-Anlagen Inh. Christel Stein
  • Method for feeding granular solids into metal melts
    Patent number: 6379415
    Abstract: The invention relates to a method for feeding solids into metal or steel melts whereby granular solids required during the analysis adjustment are fed in a predetermined quantity into the turbulent regions of the metal melt in a dense flow process by means of a pneumatic conveying device in order to achieve a high output while avoiding expensive and complex measures associated with lances and capital-intensive investments for injection devices and lance-moving devices.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: April 30, 2002
    Assignee: Stein - Industrie-Anlagen Inh. Christel Stein
    Inventors: Lutz Garten, Klaus Keller, Wilfried Stein, Karl Stein