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.

Date of Patent:
Aug. 14, 2018

Filed:

Nov. 03, 2017
Applicant:

Ecosse Subsea Systems Limited, Aberdeenshire, GB;

Inventor:

Michael W. N. Wilson, Aberdeenshire, GB;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E02F 5/28 (2006.01); E02F 9/20 (2006.01); E02F 5/00 (2006.01); E02F 3/92 (2006.01); E21B 7/18 (2006.01);
U.S. Cl.
CPC ...
E02F 5/287 (2013.01); E02F 3/9206 (2013.01); E02F 5/006 (2013.01); E02F 9/2004 (2013.01); E02F 9/205 (2013.01); E21B 7/185 (2013.01);
Abstract

A jetting system for an undersea trencher has jetting conduits extending aftward of its trench-cutting jetting swords. Jetting conduit nozzles direct liquid radially from their jetting conduits into the trench after the trench is excavated by the jetting sword cutting nozzles. The jetting conduits direct sufficient liquid into the trench to maintain the mix of trenched soil and water in the trench along the length of the conduits at not more than a super-critical density, extending the distance in which the product being laid in the trench is able to descend in the trench and increasing the likelihood that the product will be buried at the intended trench depth.


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