Patents by Inventor Christian Boerge Hansen

Christian Boerge Hansen 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).

  • Method for the manufacturing of a fluid conduit, particularly a fluid conduit in a COrefrigeration system
    Patent number: 7574885
    Abstract: The invention relates to a method for producing a fluid conduit, in particular a fluid conduit for a CO2 refrigerating plant. The aim of said invention is to develop a quick and inexpensive method. For this purpose, several pipes (5-9) are simultaneously supplied by means of at least one roller (11) which is provided with peripheral grooves (14) and are helically wound in a parallel direction with respect to each other, wherein each pipe (5-9) is guided along a helical line and the helical lines of all pipes (5-9) are parallel to each other.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: August 18, 2009
    Assignee: Danfoss A/S
    Inventor: Christian Boerge Hansen