Patent ID: 7047616
Filing Date: 2006-05-23
Classification: F16L,Y10T

Abstract:
1. A method of manufacturing and laying a plurality of elongate elements into an umbilical having a core element, a plurality of metal conduits and at least one cable situated outside the core element, said core element being advanced along a feed line said conduits and cables being fed onto the outside of the core element and laid in a helix, said method comprising the steps of: providing a first group of single lengths of metal tubes forming said conduits, parallel one to another, so as to advance said single lengths in the direction of said feed line; providing a second group of single lengths of metal tubes, parallel one to another, so as to advance said lengths of said second group in the direction of said feed line; welding said first ends of said lengths of said second group to said second end of said lengths of said first group; providing further groups of single lengths of metal tubes and welding said further groups to the lengths of the foregoing group respectively such that the metal tubes, welded together, are laid to the outside of said core element in the form of a helix in the same working step in which they are welded together; advancing said single lengths of each group into a receptacle having a tube like form; and moving said receptacle into said feed line and taking up said core element.