Patents Assigned to OVF Glastechnik GmbH
  • Process and apparatus for calibrating of glass tube sections
    Patent number: 4247319
    Abstract: The invention relates to a process for calibrating sections of glass tubing, wherein a glass-tubing section is heated to a softening temperature, shaped to the calibrating dimension, and allowed to cool. The invention furthermore concerns suitable equipment for implementing this process.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: January 27, 1981
    Assignee: OVF Glastechnik GmbH
    Inventor: Herbert Hofmann