Patents by Inventor Robert Arthur Nelson

Robert Arthur Nelson 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: 5992328
    Abstract: A separation system for separating a first section from a second section is disclosed. In one embodiment, the separation system includes first and second doublers for initially interconnecting the first and second sections, an expandable explosive system contained in a cavity defined by the first and second doublers and first and second sections, and first and second staggered grooves positioned on the first and second doublers, the first and second doublers severable along break planes defined by the first and second staggered grooves to facilitate a substantially collision-free separation and ejection of the first section relative to the second section.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: November 30, 1999
    Assignee: Lockheed Martin Corporation
    Inventors: Jim W. Blain, Robert Arthur Nelson, Duane D. Grosskrueger, John J. Smith, Michael D. Krohn
  • Patent number: 5983802
    Abstract: A separation system for separating a first section from a second section is disclosed. In one embodiment, the separation system includes first and second doublers for initially interconnecting the first and second sections, an expandable explosive system contained in a cavity defined by the first and second doublers and first and second sections, and a slide plane including first and second slide members, the first and second slide members slidably engagable with each other for at least initially guiding the first section away from and relative to the second section upon severance of the first and second doublers.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: November 16, 1999
    Assignee: Lockheed Martin Corporation
    Inventors: Jim W. Blain, Robert Arthur Nelson, Duane D. Grosskrueger, John J. Smith, Michael D. Krohn
  • Patent number: 5969287
    Abstract: A separation system for separating a first section from a second section is disclosed. In one embodiment, the separation system includes first and second doublers for initially interconnecting the first and second sections, an expandable explosive system contained in a cavity defined by the first and second doublers and first and second sections, first and second grooves positioned on the first and second doublers, the first and second doublers severable along break planes defined by the first and second grooves, and bend augmenters associated with at least one of the first and second doublers to facilitate hinging of the doubler upon firing of the explosive, which thereby reduces separation shock.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: October 19, 1999
    Assignee: Lockheed Martin Corporation
    Inventors: Jim W. Blain, Robert Arthur Nelson, Duane D. Grosskrueger, John J. Smith, Michael D. Krohn