- Patent Title: Buoyancy device for very deep water and production method thereof
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Application No.: US15549450Application Date: 2016-02-09
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Publication No.: US10167061B2Publication Date: 2019-01-01
- Inventor: Valerio Bregonzio , Cristian Scaini
- Applicant: Saipem S.p.A.
- Applicant Address: IT San Donato Milanese
- Assignee: Saipem S.p.A.
- Current Assignee: Saipem S.p.A.
- Current Assignee Address: IT San Donato Milanese
- Agency: Blank Rome LLP
- Priority: ITMI2015A0176 20150209
- International Application: PCT/IB2016/050661 WO 20160209
- International Announcement: WO2016/128884 WO 20160818
- Main IPC: B63B22/04
- IPC: B63B22/04 ; B63B43/14 ; C25D7/00 ; E21B17/01 ; C23C18/16 ; C23C18/22 ; C23C18/32 ; C23C18/38 ; C25D3/44 ; C25D5/18
Abstract:
A buoyancy device (1) comprises a support structure 2, which can be connected to an underwater application (3) and one or more buoyancy spheres (4) having a specific weight of less than 500 kg/m3 connected to the support structure (2) and having a light metal spherical shell (5) defining a spherical inner volume (6) 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 (5) is obtained in one piece in nano-crystalline metal with an average grain size of less than 1000 nanometers.
Public/Granted literature
- US20180022422A1 BUOYANCY DEVICE FOR VERY DEEP WATER AND PRODUCTION METHOD THEREOF Public/Granted day:2018-01-25
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