Patents Assigned to Feist Intertec AG
  • Method of tempering carboniferous blanks in an autoclave
    Patent number: 5096635
    Abstract: Cold carbon-containing blanks which are impregnated with a carbon-containing material are introduced into a cold autoclave which is thereupon sealed and filled with inert gas prior to heating of the interior of the autoclave to tempering temperature. The tempered products are cooled in and thereupon removed from the autoclave, and the inert gas is relieved of hydrocarbons and other harmful substances which are released by the impregnating material during tempering.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: March 17, 1992
    Assignee: Feist Intertec AG
    Inventor: Horst J. Feist