Patents Assigned to Burnswick Industrial Supply Co.
  • Vent plug
    Patent number: 4716953
    Abstract: A vent plug used in a chamber for manufacturing sand molds by a blow-squeeze process is configured to provide turbulent swirling flow of air vented from the chamber past the vent plugs to minimize build-up of deposits on the surfaces of the vents and vent plugs.
    Type: Grant
    Filed: May 13, 1986
    Date of Patent: January 5, 1988
    Assignee: Burnswick Industrial Supply Co.
    Inventors: John E. Prunty, II, Jeffrey D. Eagens