Patents by Inventor Neil R. Cossey

Neil R. Cossey 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: 7287571
    Abstract: Pattern for the lost foam casting process including a pouring-basin-forming portion, a sprue-forming portion, a runner-forming portion, a gate-forming portion, and an inline-riser-forming portion. The runners formed by the pattern each have an inline riser through which melt flows between an inlet to and outlet from the riser during pouring, and in which melt is stored to feed the casting with melt during cooling/shrinkage of the casting. A sand dam surrounds the mouth of each gate and traps particulates from a liquid styrene layer that precedes the melt front in the riser.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: October 30, 2007
    Assignee: General Motors Corporation
    Inventor: Neil R. Cossey
  • Patent number: 6971437
    Abstract: Pattern for the lost foam casting process including a pouring-basin-foming portion, a sprue-forming portion, a runner-forming portion, a gate-forming portion, and a riser-forming portion. The sprue-forming portion forms an inverted conical sprue having a blade-lightener therein for quickly filling, and substantially simultaneously firing, the gates. A glue joint may be used between the pouring- basin-forming portion and the sprue-forming portion to increase the residence time of the melt in the pouring basin. The runners formed by the pattern each have an inline riser through which melt flows during pouring and in which melt is stored to feed the casting with melt during shrinkage of the casting A sand dam surrounds the mouth of each gate and traps particulates from a liquid styrene layer that precedes the melt front in the riser.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: December 6, 2005
    Assignee: General Motors Corporation
    Inventor: Neil R. Cossey