Process and devices for maintaining the gas contained in a submerged enclosure in pressure equilibrium with the outside
US4951698A · kind A · utility
4Cited by
5References
10Claims
0Family size
Inventor
Key dates
| Filing date | Jul 12, 1989 |
| Grant date | Aug 28, 1990 |
| Priority date | — |
| Expiry date | Jul 12, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2036
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
This invention relates to a device for maintaining the gas contained in a submerged enclosure in pressure equilibrium with the outside, comprising a plurality of deformable bags which are immersed at the same time as said enclosure which are filled with gas compressed to different pressures and which communicate with said enclosure via a manifold on which they are connected by automatic three-way valves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.