The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 21, 2010
Filed:
Jun. 19, 2007
Richard John Jibb, Amherst, NY (US);
Wevone C. Hobbs, Cadiz, OH (US);
Robert W. Fix, Cortland, IL (US);
Michael T. Marshall, Dover, OH (US);
Susan Renee Kelley, Tonawanda, NY (US);
Richard John Jibb, Amherst, NY (US);
Wevone C. Hobbs, Cadiz, OH (US);
Robert W. Fix, Cortland, IL (US);
Michael T. Marshall, Dover, OH (US);
Susan Renee Kelley, Tonawanda, NY (US);
Praxair Technology, Inc., Danbury, CT (US);
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.