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:
Aug. 18, 2009
Filed:
Mar. 15, 2005
Applicant:
Christian Boerge Hansen, Haderslev, DK;
Inventor:
Christian Boerge Hansen, Haderslev, DK;
Assignee:
Danfoss A/S, Nordborg, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21F 3/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for producing a fluid conduit, in particular a fluid conduit for a COrefrigerating plant. The aim of said invention is to develop a quick and inexpensive method. For this purpose, several pipes (-) are simultaneously supplied by means of at least one roller () which is provided with peripheral grooves () and are helically wound in a parallel direction with respect to each other, wherein each pipe (-) is guided along a helical line and the helical lines of all pipes (-) are parallel to each other.