US4584802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective structure for the floor of a concrete enclosure having to contain a high temperature fluid
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1983-09-28
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Granted: 1986-04-29
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Expires: 2003-09-28
Abstract
Abstract The invention relates to a protective structure for a concrete enclosure able to contain a fluid, which can be raised to a high temperature. Starting from the floor of the enclosure, the structure comprises a porous layer, intersecting shaped sections and a tight metal skin formed from plates, welded edge-to-edge along the axes of the shaped sections, after being fixed to the latter e.g. by weld spots. The cavities formed between the shaped sections receive concrete blocks and flexible joints. The metal skin has a peripheral rising portion along the walls of the enclosure and extending up to the maximum fluid level in the enclosure. Application to enclosures having to receive hydrocarbons or liquid sodium, e.g. on the site of a fast neutron nuclear reactor.
Inventors
- 👤 Chantal Casselman
- 👤 Jean C. Malet
- 👤 Yvon Sophy
- 👤 Roger Pacton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:03
CPC Classifications
G; G21; G21C; G21C9/00; G21C9/016; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
130 words
A protective structure for a concrete floor and walls of a concrete enclosure which is to contain a high temperature fluid, wherein said protective structure comprises a porous layer covering the concrete floor of the enclosure, a support frame made from shaped sections intersecting in accordance with a regular lattice structure, and resting on the porous layer, a lining filling the cavities defined between the shaped sections and a tight metal skin resting on the support frame and constituted by thin plates fixed to the shaped section and assembled by welds placed along axes of the shaped sections, said metal skin having a peripheral rising portion along the walls of the enclosure, said peripheral rising portion defining an upper free edge positioned above a maximum fluid level in the enclosure.
Claim 2
Dependent Claim
130 words
A protective structure for a concrete floor and walls of a concrete enclosure which is to contain a high temperature fluid, wherein said protective structure comprises a porous layer covering the concrete floor of the enclosure, a support frame made from shaped sections intersecting in accordance with a regular lattice structure, and resting on the porous layer, a lining filling the cavities defined between the shaped sections and a tight metal skin resting on the support frame and constituted by thin plates fixed to the shaped section and assembled by welds placed along axes of the shaped sections, said metal skin having a peripheral rising portion along the walls of the enclosure, said peripheral rising portion defining an upper free edge positioned above a maximum fluid level in the enclosure.
Claim 3
Dependent Claim
26 words
A structure according to claim 1, wherein the lining comprises concrete slabs filling the cavities and flexible joints formed between the slabs and the shaped sections.
Claim 4
Dependent Claim
32 words
A structure according to claim 1, wherein the plates are fixed to the shaped sections by fixing means, which can break under action of a differential expansion between plates and shaped sections.
Claim 5
Dependent Claim
39 words
A structure according to claim 1, wherein it also comprises a metal sheet, whereof one edge is fixed to the walls of the enclosure, said sheet covering the free edge of the peripheral rising portion of the metal skin.
Claim 6
Dependent Claim
14 words
Structure according to claim 1, wherein levelling plates are positioned beneath the shaped sections.
Claim 7
Dependent Claim
17 words
A structure according to claim 1, wherein the porous layer is constituted by a dry sand bed.
Claim 8
Dependent Claim
16 words
A structure according to claim 1, wherein the concrete floor has drains on its upper face.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-28 | 1989-10-28 | 1990-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-28 | 1993-10-28 | 1994-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-28 | 1997-10-28 | 1998-04-29 | $7700.00 | Window Closed / Lapsed |