Patents by Inventor John E. Prunty, II

John E. Prunty, II has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 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