Patents by Inventor Mark J. Doyle

Mark J. Doyle 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).

  • Apparatus and method for purging injection molding system
    Patent number: 6514440
    Abstract: An injection molding apparatus, system and method are provided in which the rate of material flow during the injection cycle is controlled. According to one preferred embodiment, a method of open-mold purging is provided in an injection molding system including a manifold to receive material injected from an injection molding machine. The method includes the steps of selecting a target purge pressure; injecting material from the injection molding machine into the manifold; and controlling the purge pressure to substantially track the target purge pressure, wherein the purge pressure is controllable independently from the injection molding machine pressure.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: February 4, 2003
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: David O. Kazmer, Mark D. Moss, Brian Bassett, Mark J. Doyle