Patents by Inventor Thomas John Boyd

Thomas John Boyd 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 for injection molding
    Patent number: 6604936
    Abstract: The injection molding machine has an extruder for providing molding material, a cavity for retaining the molding material prior to injection into a mold, a plunger within the cavity to move the material out of the cavity, and a check valve. The check valve has separate means to permit the material to flow from the extruder to the cavity and from the cavity to an adjacent mold. By having separate flow channels for molding and recharging, the injection molding machine may be recharged on the fly.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: August 12, 2003
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Thomas John Boyd
  • Apparatus for injection molding in alternate planes
    Patent number: 6572362
    Abstract: Discloses is an apparatus for injection molding permitting movement of the injection molding machine in multiple planes. The apparatus has a frame and an injection molding machine mounted within the frame. Located on both the frame and the injection molding machine are a plurality of interlocking rails and rail bearings. The movement of the rails in the rail bearings permits the injection molding machine to move relative to the frame. The frame is a two piece interlocking frame, the two pieces being capable of movement relative to each other.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: June 3, 2003
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Thomas John Boyd
  • Apparatus for injection molding in alternate planes
    Publication number: 20030026866
    Abstract: Discloses is an apparatus for injection molding permitting movement of the injection molding machine in multiple planes. The apparatus has a frame and an injection molding machine mounted within the frame. Located on both the frame and the injection molding machine are a plurality of interlocking rails and rail bearings. The movement of the rails in the rail bearings permits the injection molding machine to move relative to the frame. The frame is a two piece interlocking frame, the two pieces being capable of movement relative to each other.
    Type: Application
    Filed: August 1, 2001
    Publication date: February 6, 2003
    Inventor: Thomas John Boyd
  • Apparatus for injection molding
    Publication number: 20030026870
    Abstract: The injection molding machine has an extruder for providing molding material, a cavity for retaining the molding material prior to injection into a mold, a plunger within the cavity to move the material out of the cavity, and a check valve. The check valve has separate means to permit the material to flow from the extruder to the cavity and from the cavity to an adjacent mold. By having separate flow channels for molding and recharging, the injection molding machine may be recharged on the fly.
    Type: Application
    Filed: August 1, 2001
    Publication date: February 6, 2003
    Inventor: Thomas John Boyd