Patents by Inventor Hao Anh Tieu

Hao Anh Tieu 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).

  • Adjustable flow channel for an extruder head
    Patent number: 6491510
    Abstract: An extruder apparatus has an extruder flow channel 10 for an extruder head having a pair of flow passages 40, 50 and a flow dam 12 interposed between the flow passages and a flow splitter 14 that locally increases or locally decreases the flow area of the first flow passage 40 relative to the second flow passage 50. The preferred flow channel 10 adjusts the mass balance of the flows 6, 7 between passages 40, 50 automatically.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: December 10, 2002
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Hao Anh Tieu, Carl Trevor Ross Pulford, Bruce Joseph Turner, Ernest Wilford Looman, Jr., George Samuel Fielding-Russell
  • Adjustable flow channel for an extruder head
    Patent number: 6478564
    Abstract: An extruder flow channel 10 has a pair of flow passages 40, 50 and a flow dam 12 interposed between the flow passages and a flow splitter 14 that locally increases or locally decreases the flow area of the first flow passage 40 relative to the second flow passage 50. The preferred flow channel 10 adjusts the mass balance of the flows 6, 7 between passages 40, 50 automatically.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: November 12, 2002
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Hao Anh Tieu, Carl Trevor Ross Pulford, Bruce Joseph Turner, Ernest Wilford Looman, Jr., George Samuel Fielding-Russell