Patents Assigned to Sidener Engineering Company, Inc.
  • Casting mold plug
    Patent number: 6830095
    Abstract: A plug for sealing and resealing the passages for heating and cooling liquid in a casting mold. The plug includes a stainless steel socket head NPT plug which is screwed into the passage to seal it. Inboard of the plug there is mounted a resilient expandable silicone tubular element that is expanded by squeezing it to further seal the passage.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: December 14, 2004
    Assignee: Sidener Engineering Company, Inc.
    Inventors: Gregory L. Sidener, Douglas A. Webster