Patents Assigned to Shouzui Yasui
  • Patent number: 5948351
    Abstract: A melting crucible (1) comprises a collecting volume (6) for liquid material and is equipped with a bottom outlet opening (2). This bottom outlet opening (2) is closable with a movable stopper (3). The bottom outlet opening (2) comprises a specially formed transition region (7), and the front end of stopper (3) is also specially formed. This shaping leads to improved flow conditions and to optimum sealing between stopper (3) and melting crucible (1).
    Type: Grant
    Filed: December 8, 1997
    Date of Patent: September 7, 1999
    Assignee: Shouzui Yasui
    Inventor: Christian Reiter