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:
May. 09, 1995
Filed:
Aug. 20, 1993
Gerhardus A Stenfert, Nootdorp, NL;
Robert P Hovinga, Naaldwijk, NL;
Eugene A Bajema, Zoetermeer, NL;
Allseas Engineering B.V., , NL;
Abstract
During laying of a pipeline on a surface located under water, on a vessel a pipe is fitted to a pipe string of the pipeline, in each case during a fitting step. Herein during the fitting step the vessel is moved substantially continuously in lengthwise direction of the pipe string while a pipe is fitted to the pipe string by means of positioning means moved relative to the vessel and by means of welding means moved relative to the vessel. According to the invention, a train of positioning means, welding means and clamping means is moved during an operational phase relative to the vessel in lengthwise direction of the pipe string in principle together with the pipe string and during a resetting phase set between two successive operational phases this train is displaced in the direction of the prow of the vessel relative to the pipe string and relative to the vessel. The pipe string is herein held fixedly on the train by means of the clamping means and the train is held fixedly on the vessel by means of coupling means.