US4284841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable
Assignee: Centrilift Hughes Inc
•
Filing: 1979-09-07
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Granted: 1981-08-18
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Expires: 1999-09-07
Abstract
Abstract Electrical conductors having suitable combinations of coatings and coverings are disclosed which have the ability to inhibit low molecular weight hydrocarbon well fluids when under pressure and withstand high proportions of gassy hydrocarbons under pressure without undergoing rupture failure.
Inventors
- 👤 Donatas Tijunelis
- 👤 Clinton A. Boyd
- 👤 Joseph E. Vandevier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:03
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/04; H01B7/046; H01B7/08; H01B7/0869; H01B7/17; H01B7/18; H01B7/182
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
80 words
In a multiple conductor cable especially suitable for high temperature use, the combination of each conductor comprising: a plurality of strands comprising copper; a resilient material surrounding each conductor and filling any voids between the strands thereof; a high electric resistivity plastic covering said resilient material; a lead jacket surrounding said high electric resistivity plastic; an oil resistant insulation material surrounding said lead jacket; a braid layer tightly covering said insulation material; and an external armor surrounding said braid layer.
Claim 2
Dependent Claim
80 words
In a multiple conductor cable especially suitable for high temperature use, the combination of each conductor comprising: a plurality of strands comprising copper; a resilient material surrounding each conductor and filling any voids between the strands thereof; a high electric resistivity plastic covering said resilient material; a lead jacket surrounding said high electric resistivity plastic; an oil resistant insulation material surrounding said lead jacket; a braid layer tightly covering said insulation material; and an external armor surrounding said braid layer.
Claim 3
Dependent Claim
30 words
In a multiple conductor cable as recited in claim 1 where said conductor is covered by an inert metal selected from the group comprising lead, a lead-tin alloy and aluminum.
Claim 4
Dependent Claim
19 words
In a multiple conductor cable as recited in claim 1 where said resilient material comprises an electrically conductive rubber.
Claim 5
Dependent Claim
24 words
In a multiple conductor cable as recited in claim 1 where said high electric resistivity plastic comprises a relatively rigid, high temperature resistant polyimide.
Claim 6
Dependent Claim
20 words
In a multiple conductor cable as recited in claim 1 where said oil resistant insulating material comprises an EPDM elastomer.
Claim 7
Dependent Claim
30 words
In a multiple conductor cable as recited in claim 1 where said braid is selected from the group comprising nylon fiber, polyethylene fiber, glass fiber, polyamide fiber and fluropolymer fiber.
Claim 8
Dependent Claim
22 words
In a multiple conductor cable as recited in claim 1 where said armor is selected from the group comprising metal and plastic.
Claim 9
Dependent Claim
21 words
In a cable as recited in claim 1 further comprising a polyvinyl fluoride tape wound around said oil resistant insulating material.
Claim 10
Dependent Claim
23 words
In a cable as recited in claim 1 further comprising a coating of an alloy containing lead on each of said copper strands.
References Cited (Backward Citations)
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Cited
US4096351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-17 | 1985-02-16 | 1985-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-17 | 1989-02-16 | 1989-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-17 | 1993-02-16 | 1993-08-18 | $7700.00 | Window Closed / Lapsed |