Patent US4837448A successfully refreshed from Google Patents.
US4837448A
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Protective sheath for electrical or optical conductors hardened with respect to X-rays
Assignee: Airbus Group SAS
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Filing: 1987-04-08
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Granted: 1989-06-06
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Expires: 2007-04-08
Abstract
Abstract Protective sheath for optical or electrical conductors hardened with respect to X-rays. It comprises a flexible sheath formed from a resin matrix containing in regularly dispersed powder form at least one metal and/or at least one inorganic compound of a metal, said metal having a high atomic number of at least 47, a covering placed between the optical fibre and the X-ray protection sheath and optionally a mechanical protection sheath made from plastic directly covering the optical fibre.
Inventors
- 👤 Jean Sainte Luce Banchelin
- 👤 Jean Bourcereau
- 👤 Yves Valy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:06
CPC Classifications
H; H01; H01B; H01B11/00; H01B11/02; H01B11/06; H01B11/10; H01B11/1058; G; G02; G02B; G02B6/00; G02B6/44; G02B6/4401; G02B6/4429; G02B6/443
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
93 words
A flexible cable comprising at least one conductor from the group consisting of electrical and optical conductors and an external protection sheath hardened with respect to X-rays, said sheath comprising a flexible X-ray protection sheath externally surrounding said conductor and being formed from a resin matrix containing a regularly dispersed powder of at least one material which is either a metal or an inorganic compound of a metal, the metal having a high atomic number of at least 47, and an anti-SGEMP covering inserted between said conductor and said flexible X-ray protection sheath.
Claim 2
Dependent Claim
93 words
A flexible cable comprising at least one conductor from the group consisting of electrical and optical conductors and an external protection sheath hardened with respect to X-rays, said sheath comprising a flexible X-ray protection sheath externally surrounding said conductor and being formed from a resin matrix containing a regularly dispersed powder of at least one material which is either a metal or an inorganic compound of a metal, the metal having a high atomic number of at least 47, and an anti-SGEMP covering inserted between said conductor and said flexible X-ray protection sheath.
Claim 3
Dependent Claim
20 words
A cable according to claim 1, wherein the powder only melts at a temperature at least equal to 630° C.
Claim 4
Dependent Claim
17 words
A cable according to claim 1, wherein the flexible sheath has an elongation at break exceeding 50%.
Claim 5
Dependent Claim
20 words
A cable according to claim 1, wherein the resin is a polyether block amide, polyether block ester or silicone resin.
Claim 6
Dependent Claim
26 words
A cable according to claim 1, wherein the metal with the high atomic number is chosen from the group consisting of silver, tantalum, tungsten and uranium.
Claim 7
Dependent Claim
28 words
A cable according to claim 1, wherein said anti-SGEMP covering is formed from at least one element with a low atomic number at the most equal to 6.
Claim 8
Dependent Claim
25 words
A cable according to claim 6, wherein the element with the low atomic number is chosen from the group consisting of carbon, boron, and beryllium.
Claim 9
Dependent Claim
32 words
A cable according to claim 1, wherein said external protecting sheath comprises a mechanical protection sheath made from a plastic material directly covering the conductor, wherein said conductor is an optical conductor.
Claim 10
Dependent Claim
26 words
A cable according to claim 1, wherein said external protecting sheath comprises an electrical insulator directly covering the conductor, wherein said conductor is an electrical conductor.
Claim 11
Dependent Claim
16 words
A cable according to claim 1, wherein said flexible X-ray protection sheath is an extruded sheath.
Claim 12
Dependent Claim
27 words
A cable according to claim 1, wherein said anti-SGEMP covering has a thickness exceeding the mean free path of electrons emitted during an X-irradiation of said cable.
Claim 13
Dependent Claim
105 words
A flexible cable comprising at least one conductor from the group consisting of electrical and optical conductors and an external protection sheath hardened with respect to X-rays, said sheath comprising a flexible X-ray protection sheath externally surrounding said conductor and being formed from a resin matrix containing a regularly dispersed powder of at least one material which is either a metal or an inorganic compound of a metal, the metal having a high atomic number of at least 47, and an anti-SGEMP covering inserted between said conductor and said flexible X-ray protection sheath, wherein the powder represents 25 to 50% volume of the flexible sheath.
Claim 14
Dependent Claim
105 words
A flexible cable comprising at least one conductor from the group consisting of electrical and optical conductors and an external protection sheath hardened with respect to X-rays, said sheath comprising a flexible X-ray protection sheath externally surrounding said conductor and being formed from a resin matrix containing a regularly dispersed powder of at least one material which is either a metal or an inorganic compound of a metal, the metal having a high atomic number of at least 47, and an anti-SGEMP covering inserted between said conductor and said flexible X-ray protection sheath, wherein the powder represents 25 to 50% volume of the flexible sheath.
Claim 15
Dependent Claim
69 words
A flexible cable comprising at least one conductor from the group consisting of electrical and optical conductors and an external protecting sheath hardened with respect to X-rays, wherein said sheath comprises a flexible X-ray protection sheath externally surrounding said conductor and being formed from a resin matrix containing a regularly dispersed powder of tungsten metal, and an anti-SGEMP covering inserted between said conductor and said flexible X-ray protection sheath.
Claim 16
Dependent Claim
69 words
A flexible cable comprising at least one conductor from the group consisting of electrical and optical conductors and an external protecting sheath hardened with respect to X-rays, wherein said sheath comprises a flexible X-ray protection sheath externally surrounding said conductor and being formed from a resin matrix containing a regularly dispersed powder of tungsten metal, and an anti-SGEMP covering inserted between said conductor and said flexible X-ray protection sheath.
Claim 17
Dependent Claim
71 words
A flexible cable comprising at least one conductor from the group consisting of electrical and optical conductors and an external protecting sheath hardened with respect to X-rays, wherein said sheath comprises a flexible X-ray protection sheath externally surrounding said conductor and being formed from a resin matrix containing a regularly dispersed powder of uranium dioxide and tungsten, and an anti-SGEMP covering inserted between said conductor and said flexible X-ray protection sheath.
Claim 18
Dependent Claim
71 words
A flexible cable comprising at least one conductor from the group consisting of electrical and optical conductors and an external protecting sheath hardened with respect to X-rays, wherein said sheath comprises a flexible X-ray protection sheath externally surrounding said conductor and being formed from a resin matrix containing a regularly dispersed powder of uranium dioxide and tungsten, and an anti-SGEMP covering inserted between said conductor and said flexible X-ray protection sheath.
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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) | 1992-06-05 | 1992-12-05 | 1993-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-05 | 1996-12-05 | 1997-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-05 | 2000-12-05 | 2001-06-06 | $7700.00 | Window Closed / Lapsed |