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:
Jan. 01, 2019
Filed:
Feb. 09, 2016
Applicant:
Saipem S.p.a., San Donato Milanese, IT;
Inventors:
Valerio Bregonzio, San Donato Milanese, IT;
Cristian Scaini, San Donato Milanese, IT;
Assignee:
Saipem S.p.A., San Donato Milanese, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63B 22/04 (2006.01); B63B 43/14 (2006.01); C25D 7/00 (2006.01); E21B 17/01 (2006.01); C23C 18/16 (2006.01); C23C 18/22 (2006.01); C23C 18/32 (2006.01); C23C 18/38 (2006.01); C25D 3/44 (2006.01); C25D 5/18 (2006.01);
U.S. Cl.
CPC ...
B63B 22/04 (2013.01); B63B 43/14 (2013.01); C23C 18/1635 (2013.01); C23C 18/1653 (2013.01); C23C 18/22 (2013.01); C23C 18/32 (2013.01); C23C 18/38 (2013.01); C25D 3/44 (2013.01); C25D 7/006 (2013.01); E21B 17/012 (2013.01); C25D 5/18 (2013.01);
Abstract
A buoyancy device () comprises a support structure, which can be connected to an underwater application () and one or more buoyancy spheres () having a specific weight of less than 500 kg/mconnected to the support structure () and having a light metal spherical shell () defining a spherical inner volume () and which has an outer diameter (d) greater than 0.5 cm, and a radial thickness (t) greater than 0.08 mm, wherein the spherical shell () is obtained in one piece in nano-crystalline metal with an average grain size of less than 1000 nanometers.