Patents by Inventor Patrick J. Van Ryckeghem

Patrick J. Van Ryckeghem 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).

  • Dimensionally accurate expanded foam casting pattern
    Patent number: 5385698
    Abstract: A method is disclosed for heating pre-expanded foundry pattern molding beads of polystyrene or the like in a stream of hot air to reduce the vapor-forming expansion agent content for the purpose of producing more dimensionally accurate, molded foam bead casting patterns.
    Type: Grant
    Filed: April 23, 1992
    Date of Patent: January 31, 1995
    Assignee: Saturn Corporation
    Inventors: Gary E. Bishop, Patrick J. Van Ryckeghem