US3715453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryogenic connection enclosure
Assignee: Alcatel Lucent SAS
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Filing: 1972-04-20
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Granted: 1973-02-06
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Expires: 1992-04-20
Abstract
Abstract Cold enclosure having a tubular shape, surrounding the conductors of a cryogenic connection, consisting of two layers of composite material, joined together by a metallic connection, an outer cover made of an iron and nickel alloy in which the proportion of nickel comprises between thirty and forty per cent, and an inner layer of copper or aluminum, this inner layer preventing the generating of alternating induced fields in the outer cover, which is magnetic.
Inventors
- 👤 M Aupoix
- 👤 Franckhauser F Moisson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:57
CPC Classifications
H; H01; H01B; H01B12/00; H01B12/16; Y; Y02; Y02E; Y02E40/00; Y02E40/60; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/884; Y10S505/885
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
69 words
In a cold container made of a composite material, having a tubular shape, surrounding the conductors of a cryogenic connection, comprising a casing made of an iron and nickel alloy in which the concentration of nickel comprises between thirty and forty-five per cent, the improvement wherein: a metal screen made of a material having a resistivity lower than 3.10 8 ohms. meter surrounds the conductors inside the said casing.
Claim 2
Dependent Claim
69 words
In a cold container made of a composite material, having a tubular shape, surrounding the conductors of a cryogenic connection, comprising a casing made of an iron and nickel alloy in which the concentration of nickel comprises between thirty and forty-five per cent, the improvement wherein: a metal screen made of a material having a resistivity lower than 3.10 8 ohms. meter surrounds the conductors inside the said casing.
Claim 3
Dependent Claim
22 words
The cold container according to claim 1, wherein: said screen comprises a metal layer covering the inside face of the said casing.
Claim 4
Dependent Claim
36 words
The cold container according to claim 2, wherein: said casing and the said screen are made from a laminated and bent strip comprising a first layer forming said envelope and a second layer forming said screen.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |