Sealed and thermally insulating tank
US11821587B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2019 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Jun 23, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2270/0107
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A tank includes a secondary insulation barrier, a secondary sealing membrane resting on the secondary insulation barrier, a primary insulation barrier resting on the secondary sealing membrane, a primary sealing membrane resting on the primary insulation barrier, and a primary reinforcing member. The primary sealing membrane includes primary corrugations and the secondary sealing membrane includes secondary corrugations projecting toward the interior of the tank. The primary and secondary corrugations are superimposed along a thickness direction. The primary insulation barrier has passages, and the secondary corrugations are accommodated in the passages. A dimension of the primary insulation barrier is less than a dimension of the secondary corrugations along the thickness direction, so the secondary corrugations extend through the passages and are partially accommodated in the primary corrugations. The primary reinforcing member is interposed along the thickness direction between superimposed primary and secondary corrugations so as to reinforce the primary corrugation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.