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:
Jul. 27, 1976
Filed:
Jul. 09, 1974
Applicant:
Inventors:
Robert Porte, Le Mesnil-St. Denis, FR;
Michel Rommens, Chevreuse, FR;
Assignee:
Commissariat a l'Energie Atomique, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F / ; E02F / ;
U.S. Cl.
CPC ...
299-8 ; 37 56 ; 37 61 ; 37 72 ; 37DI / ; 37195 ; 302 14 ; 417 54 ; 417108 ;
Abstract
In a first step, a mixture of nodular sediments and sea water is collected by dredging along the sea bed and lifted into the separation compartment of an underwater control and storage station connected by tubing to a carrier ship. A volume of air corresponding to the pressure of the compartment at the immersion depth is sucked from the mixture and re-injected into the dredging tube by means of a booster compressor. In a second step, the nodules separated from the air are sucked to the surface and then collected.