US3602633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable-shielding material
Assignee: Texas Instruments Inc
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Filing: 1968-11-19
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Granted: 1971-08-31
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Expires: 1988-11-19
Abstract
Abstract A cable-shielding material is shown to comprise annealed, low carbon steel and aluminum layers of selected thicknesses arranged and metallurgically bonded together in selected positions relative to each other to provide novel and advantageous properties of strength, weight, volume, electrical conductivity, magnetic permeability corrosion resistance, and formability, whereby the cable-shielding material can be economically manufactured and easily formed around a cable to provide the cable with suitable electrical and electromagnetic shielding while further providing the cable with suitable protection against sharp objects, rodents and corrosion. Such a cableshielding material having a layer of copper thereon for facilitating soldering of the material is also shown.
Inventors
- 👤 Edwin A Miller
- 👤 Gregory H Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:29
CPC Classifications
H; H01; H01B; H01B9/00; H01B9/02; H01B9/022
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
107 words
A composite cable-shielding material comprising at least one layer of steel metallurgically bonded to at least one layer of metal of relatively high electrical conductivity at least one of said layers of relatively high electrical conductivity being formed of aluminum metallurgically bonded to said steel layer, each of said steel layers having a thickness in the range from about 0.002 to 0.004 inches and being in annealed condition, the total thickness of said layers of relatively high electrical conductivity being in the range from about 0.008 to 0.010 inches, and the total thickness of said composite material being in the range from about 0.010 to 0.014 inches.
Claim 2
Dependent Claim
107 words
A composite cable-shielding material comprising at least one layer of steel metallurgically bonded to at least one layer of metal of relatively high electrical conductivity at least one of said layers of relatively high electrical conductivity being formed of aluminum metallurgically bonded to said steel layer, each of said steel layers having a thickness in the range from about 0.002 to 0.004 inches and being in annealed condition, the total thickness of said layers of relatively high electrical conductivity being in the range from about 0.008 to 0.010 inches, and the total thickness of said composite material being in the range from about 0.010 to 0.014 inches.
Claim 3
Dependent Claim
19 words
A composite material as set forth in claim 1 comprising one layer of steel and one layer of aluminum.
Claim 4
Dependent Claim
68 words
A composite cable-shielding material as set forth in claim 1 comprising one layer of steel, one relatively thick layer of relatively high electrical conductivity formed of aluminum, and one relatively thin layer of relatively high electrical conductivity formed of a material selected from the group consisting of copper and aluminum, said layers of relatively high electrical conductivity being metallurgically bonded to respective opposite faces of said steel layer.
Claim 5
Dependent Claim
26 words
A composite material as set forth in claim 3 wherein said relatively thin layer has a thickness in the range from about 0.0002 to 0.0015 inches.
Claim 6
Dependent Claim
73 words
A composite cable-shielding material as set forth in claim 1 comprising a relatively thick layer of relatively high electrical conductivity formed of aluminum, said relatively thick layer being sandwiched between and metallurgically bonded to two steel layers, and a relatively thin layer of relatively high electrical conductivity formed of a material selected from the group consisting of copper and aluminum, said relatively thin layer being metallurgically bonded to one of said steel layers.
Claim 7
Dependent Claim
26 words
A composite material as set forth in claim 5 wherein said relatively thin layer has a thickness in the range from about 0.0002 to 0.0015 inches.
Claim 8
Dependent Claim
47 words
A composite material as set forth in claim 6 having an additional relatively thin layer of relatively high electrical conductivity formed of a material selected from the group consisting of copper and aluminum, said additional relatively thin layer being metallurgically to the other of said steel layers.
Claim 9
Dependent Claim
27 words
A composite material as set forth in claim 7 wherein said additional relatively thin layer has a thickness in the range from about 0.0002 to 0.0015 inches.
Claim 10
Dependent Claim
54 words
A composite material as set forth in claim 1 comprising one layer of steel sandwiched between and metallurgically bonded to two layers of relatively high electrical conductivity formed of aluminum, and two relatively thin layers of relatively high electrical conductivity formed of copper, said relatively thin layers being bonded to said aluminum layers respectively.
Claim 11
Dependent Claim
29 words
A composite material as set forth in claim 9 wherein said relatively thin layers of copper each have a thickness in the range from about 0.0002 to 0.0015 inches.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |