Patents by Inventor Jan Eric Pehrsson

Jan Eric Pehrsson 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).

  • Feeder element for metal casting
    Patent number: 7500509
    Abstract: The present invention relates to a feeder element (10) for use in metal casting. The feeder element (10) (which serves the function of a breaker core) has a first end (16) for mounting on a mould plate (24), an opposite second end (18) for receiving a feeder sleeve (20) and a bore (14) between the first and second ends (16,18) defined by a sidewall (12). The feeder element (10) is compressible in use whereby to reduce the distance between said first and second ends (16,18). The invention also relates to a breaker core/feeder sleeve assembly (10,20).
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: March 10, 2009
    Assignee: Foseco International Limited
    Inventors: Colin Powell, Jan Sallstrom, Jan Eric Pehrsson