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. 21, 2018
Filed:
Jul. 10, 2014
Applicant:
Ihc Holland IE B.v., Sliedrecht, NL;
Inventor:
Pieter Abraham Lucieer, Rotterdam, NL;
Assignee:
IHC Holland IE B.V., Sliedrecht, NL;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E02F 3/90 (2006.01); E02F 3/88 (2006.01); E02F 7/06 (2006.01); E02F 7/10 (2006.01); E21C 50/00 (2006.01); E02F 3/94 (2006.01);
U.S. Cl.
CPC ...
E02F 3/907 (2013.01); E02F 3/885 (2013.01); E02F 3/905 (2013.01); E02F 3/94 (2013.01); E02F 7/065 (2013.01); E02F 7/10 (2013.01); E21C 50/00 (2013.01);
Abstract
A method for deep sea mining includes generating an upward flow of valuable matter in a riser line from the bottom of a body of water to a matter processing platform; processing the matter at the processing platform; generating a return flow in a return pipe of a mixture of seawater and a non-valuable part of the matter from the processing platform towards the bottom of the body of water; and controlling the pressure in the return pipe for avoiding collapse of the return pipe and/or cavitation of the return pipe, in particular for avoiding collapse of or cavitation in an upper part of the return pipe.