Patents by Inventor David Arthur Luippold

David Arthur Luippold 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).

  • Highly conductive thermoplastic elastomer (TPE) gap filler
    Patent number: 6780921
    Abstract: A highly conductive thermoplastic elastomer gap filler having superior durability and EMI shielding properties. According to the preferred embodiment, the TPE comprises graphite fiber having a nickel-copper-nickel coating formed thereabout that is suspended within an elastomer, which preferably comprises polyvinylchloride. The TPE of the present invention is particularly well-suited for reducing radio frequency electromagnetic radiation reflected by gaps formed between adjacent panels of a structure, and is particularly well-suited for the maintenance and repair of low observable aircraft. The TPE of the present invention may further be modified to include carbon black filler.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: August 24, 2004
    Assignee: Northrop Grumman Corporation
    Inventors: David Arthur Luippold, Mark David Brown, John Wilbur Tully
  • Method for reducing reflected radio frequency electromagnetic radiation
    Patent number: 6284175
    Abstract: A highly conductive thermoplastic elastomer (TPE) gap filler having superior durability and EMI shielding properties. According to the preferred embodiment, the TPE comprises graphite fiber having a nickel-copper-nickel coating formed thereabout that is suspended within an elastomer, which preferably comprises polyvinylchloride (PVC). The TPE of the present invention is particularly well-suited for reducing radio frequency electromagnetic radiation reflected by gaps formed between adjacent panels of a structure, and is particularly well-suited for the maintenance and repair of LO aircraft. The TPE of the present invention may further be modified to include carbon black filler.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: September 4, 2001
    Assignee: Northrop Grumman Corporation
    Inventors: David Arthur Luippold, Mark David Brown, John Wilbur Tully