Patent US3958714A successfully refreshed from Google Patents.
US3958714A
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Heat-insulating structure
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1974-02-07
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Granted: 1976-05-25
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Expires: 1994-02-07
Abstract
Abstract In a heat-insulating structure conisting of stacks of metallic modular elements placed in imbricated relation by means of overlapping edge portions, each stack is assembled by means of a single fastening member which is passed right through; and each modular element comprises a leak-tight chamber divided into two equal compartments having the shape of right-angled parallelepipeds, overlapping edge portions formed by the compartments which are relatively displaced along one diagonal, a spacer member fixed between the large bearing faces of the chamber and a filling structure within each compartment.
Inventors
- 👤 Andre Barriere
- 👤 Pierre Rough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:45
CPC Classifications
G; G21; G21C; G21C11/00; G21C11/08; G21C11/083; G21C11/085; F; F16; F16L; F16L59/00; F16L59/06; F16L59/12; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
110 words
A heat insulating apparatus comprising a plurality of metallic modular members each defining two stacked compartments, each compartment having the shape of a right-angled parallelepiped, said compartments communicating through a common internal face defining overlapping edge portions, said members being disposed in a stacked relationship with their respective edge portions extending in an imbricated relationship, a tie bolt extending through said tubular member, a pressure plate engaging the outermost member and cooperating with said tie bolt to clamp said members in said stacked relationship, and a tubular member extending perpendicular to and attached to said members and cooperating with said tie bolt for maintaining said members in a predetermined alignment.
Claim 2
Dependent Claim
110 words
A heat insulating apparatus comprising a plurality of metallic modular members each defining two stacked compartments, each compartment having the shape of a right-angled parallelepiped, said compartments communicating through a common internal face defining overlapping edge portions, said members being disposed in a stacked relationship with their respective edge portions extending in an imbricated relationship, a tie bolt extending through said tubular member, a pressure plate engaging the outermost member and cooperating with said tie bolt to clamp said members in said stacked relationship, and a tubular member extending perpendicular to and attached to said members and cooperating with said tie bolt for maintaining said members in a predetermined alignment.
Claim 3
Dependent Claim
96 words
A heat insulating apparatus comprising a plurality of metallic modular members each defining two stacked compartments, each compartment being maintained in a vacuum and each having the shape of a right-angled parallelepiped, said compartments communicating through a common internal face defining overlapping edge portions, said members being disposed in a stacked relationship with their respective edge portions extending in an imbricated relationship, fastening means for fastening said members in a stacked relationship, and means extending perpendicular to and attached to said members for cooperating with said fastening means to maintain said members in a predetermined alignment.
Claim 4
Dependent Claim
96 words
A heat insulating apparatus comprising a plurality of metallic modular members each defining two stacked compartments, each compartment being maintained in a vacuum and each having the shape of a right-angled parallelepiped, said compartments communicating through a common internal face defining overlapping edge portions, said members being disposed in a stacked relationship with their respective edge portions extending in an imbricated relationship, fastening means for fastening said members in a stacked relationship, and means extending perpendicular to and attached to said members for cooperating with said fastening means to maintain said members in a predetermined alignment.
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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) | 1979-05-25 | 1979-11-24 | 1980-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-25 | 1983-11-24 | 1984-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-25 | 1987-11-24 | 1988-05-25 | $7700.00 | Window Closed / Lapsed |