Patents by Inventor John Cosman

John Cosman 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).

  • Quick coupling device for exchanging plasticizing unit of an injection molding machine
    Patent number: 5011396
    Abstract: An injection molding machine comprising a drive unit and a plasticizing unit and includes a quick disconnect coupling mechanism for connecting the feed screw of the plasticizing unit to and disconnecting it from the quill of the driving unit.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: April 30, 1991
    Assignee: Husky Injection Molding Systems, Ltd.
    Inventors: John Cosman, Victor Silaghi