Patents by Inventor Eric J. Lang

Eric J. Lang 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).

  • Channel assisted resin transfer molding
    Patent number: 6919039
    Abstract: The present invention relates to methods and apparatus of molding composite parts by liquid resin infusion. The invention involves the creation of temporary resin distribution channels on the surface of a preform to aid in the distribution of resin during infusion. In general, these methods are improvements over the art because the molds are cheaper to make, the parts produced are of higher quality, minimal waste is produced and the time to infiltrate the preform is reduced. Hollow tubes with moveable portions provide Channels which Assist in Resin Transfer Molding of composites (CARTM).
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: July 19, 2005
    Inventors: Eric J. Lang, Richard W. Rydin
  • Channel assisted resin transfer molding
    Publication number: 20020146529
    Abstract: The present invention relates to methods and apparatus of molding composite parts by liquid resin infusion. The invention involves the creation of temporary resin distribution channels on the surface of a preform to aid in the distribution of resin during infusion. In general, these methods are improvements over the art because the molds are cheaper to make, the parts produced are of higher quality, minimal waste is produced and the time to infiltrate the preform is reduced. Hollow tubes with moveable portions provide Channels which Assist in Resin Transfer Molding of composites (CARTM).
    Type: Application
    Filed: June 3, 2002
    Publication date: October 10, 2002
    Inventors: Eric J. Lang, Richard W. Rydin