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. 31, 1996
Filed:
Jun. 07, 1995
Dick R Wolbers, 's-Gravenhage, NL;
Ronkers Koerse, Twisk, NL;
All Seas Group S.A., , CH;
Abstract
The invention relates to a method for laying a pipe-line, wherein pipes are welded to each other along a ring weld and wherein the ring weld is covered with a mastic ring. In the known method of this type the mastic of asphalt bitumen is melted and cast into a mould arranged round the ring weld. Working with a hot substance (180.degree. C.) is dangerous. The vapours from melted asphalt bitumen create an unpleasant and unhealthy work climate. The quality of asphalt bitumen deteriorates the more melted it becomes. The invention has for its object to provide a method wherein the above stated and/or other drawbacks occur either at least to a lesser extent or not at all. To this end the method according to the invention has the feature that the mastic is arranged substantially in plastic condition around the ring weld.