Subsea fluid storage system
US10370186B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2017 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Sep 13, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D90/50
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A subsea fluid storage system comprising a soft bladder disposed within a pressure balanced reservoir, a rotatable piston, and a piston rotator which rotates and twists the rotatable piston as it travels along a predetermined axis within the pressure balanced reservoir, predictably and repeatabley collapses the soft bladder when the rotating piston cooperatively travels about the piston rotator, twisting the soft bladder as the rotating piston moves along the predetermined axis, collapsing the bladder inward and thereby emptying the bladder of fluid within the bladder. The piston's rotation pulls the soft bladder away from the pressure balanced reservoir's interior, thereby preventing the bladder's binding or pinching the pressure balanced reservoir's interior. In configurations, fluid is allowed to enter the pressure balanced reservoir via a valve until a balance is achieved between an interior and an exterior of the pressure balanced reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.