Patents by Inventor Wevone C. Hobbs

Wevone C. Hobbs 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: 7854236
    Abstract: Method of assembling a vacuum insulated piping run for conducting a cryogenic fluid in which piping sections are produced in a first location and then assembled in a second location into a piping run. Each of the piping sections incorporates an outer cylindrical casing and an inner pipe for transport of the cryogenic fluid to form an inner annular region for containing insulation that can be radiation shield insulation and aerogel blankets. The piping sections are joined by welding the ends of the inner pipes together and then joining the outer cylindrical casing by a shell-like section. Points of connections are tested by vacuum testing techniques as each of the connections is made. Thereafter, the annular region is purged with a condensable gas such as carbon dioxide and subjected to a subatmospheric pressure.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: December 21, 2010
    Assignee: Praxair Technology, Inc.
    Inventors: Richard John Jibb, Wevone C. Hobbs, Robert W. Fix, Michael T. Marshall, Susan Renee Kelley
  • Publication number: 20080314455
    Abstract: Method of assembling a vacuum insulated piping run for conducting a cryogenic fluid in which piping sections are produced in a first location and then assembled in a second location into a piping run. Each of the piping sections incorporates an outer cylindrical casing and an inner pipe for transport of the cryogenic fluid to form an inner annular region for containing insulation that can be radiation shield insulation and aerogel blankets. The piping sections are joined by welding the ends of the inner pipes together and then joining the outer cylindrical casing by a shell-like section. Points of connections are tested by vacuum testing techniques as each of the connections is made. Thereafter, the annular region is purged with a condensable gas such as carbon dioxide and subjected to a subatmospheric pressure.
    Type: Application
    Filed: June 19, 2007
    Publication date: December 25, 2008
    Inventors: Richard John Jibb, Wevone C. Hobbs, Robert W. Fix, Michael T. Marshall, Susan Renee Kelley