Patents by Inventor Herbert J. Freeman

Herbert J. Freeman 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).

  • Patent number: 4637133
    Abstract: An assembly machine is operable in a single continuous stroke to advance a radiator header plate having a plurality of tube receiving openings onto the ends of a plurality of radiator tubes and to forcibly peripherally expand the tube ends within the openings in the header into a press fit relationship with the header.
    Type: Grant
    Filed: July 30, 1985
    Date of Patent: January 20, 1987
    Assignee: Progressive Tool & Industries Company
    Inventor: Herbert J. Freeman