US4370518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Splice for lead-coated and insulated conductors
Assignee: Baker Hughes Holdings LLC
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Filing: 1981-07-27
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Granted: 1983-01-25
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Expires: 2001-07-27
Abstract
Abstract A cable splice joining insulated conductor ends wherein the conductors are coated with lead, lead-tin alloy or tin, said splice comprising a metallic sleeve member joining the conductor ends, a first layer of adhesive over the sleeve member and any exposed conductor areas, a layer of foil formed of lead or lead-tin alloy covering the first adhesive layer, a second adhesive layer covering said layer of foil and extending over the exposed insulation; a helically-wrapped insulation layer formed of a thermosetting polymer, an over-lapped layer of fabric surrounding the insulation layer, a helically-wrapped heat-shrinkable type layer surrounding the fabric layer, and a heat-shrinkable sleeve surrounding the splice area, and a method for forming said cable splice, for providing cable splices which resist depressurization failure and corrosion of conductors when employed in high pressure gassy oil wells containing corrosive well fluids.
Inventors
- 👤 Raymond L. Guzy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:15
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/70; H01R4/72; H02; H02G; H02G15/00; H02G15/08; H02G15/18; H02G15/1806
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
123 words
A cable splice comprising: a metallic sleeve member extending over conductor end portions and frictionally engaging the conductor end portions; a first layer of adhesive covering said sleeve member and extending over exposed conductor end portions; a layer of foil covering said first layer of adhesive, said foil formed of lead or lead-tin alloy; a second layer of adhesive covering said layer of foil and extending over the exposed cable insulation; a helically wrapped insulation layer of uncured thermosetting elastomeric polymer tape surrounding said second layer of adhesive; an overlapped layer of fabric; a helically-wrapped layer of heat-shrinkable polymeric material tape surrounding said layer of fabric; and a sleeve of heat shrinkable polymeric material surrounding said layer of heat shrinkable polymeric material tape.
Claim 2
Dependent Claim
123 words
A cable splice comprising: a metallic sleeve member extending over conductor end portions and frictionally engaging the conductor end portions; a first layer of adhesive covering said sleeve member and extending over exposed conductor end portions; a layer of foil covering said first layer of adhesive, said foil formed of lead or lead-tin alloy; a second layer of adhesive covering said layer of foil and extending over the exposed cable insulation; a helically wrapped insulation layer of uncured thermosetting elastomeric polymer tape surrounding said second layer of adhesive; an overlapped layer of fabric; a helically-wrapped layer of heat-shrinkable polymeric material tape surrounding said layer of fabric; and a sleeve of heat shrinkable polymeric material surrounding said layer of heat shrinkable polymeric material tape.
Claim 3
Dependent Claim
19 words
The cable splice of claim 1 wherein the fabric layer end portions and lap area are coated with adhesive.
Claim 4
Dependent Claim
13 words
The cable splice of claim 1 wherein the thermosetting elastomeric tape is thermally-cured.
Claim 5
Independent Claim
131 words
A method for forming a cable splice comprising the steps of joining the exposed conductor ends with sleeve means frictionally engaging said conductors; coating the sleeve means and the exposed conductors with a first layer of liquid adhesive; applying a foil formed of lead or lead-tin alloy over the first adhesive layer; applying a second layer of liquid adhesive over the layer of foil and extending over the exposed insulation; applying an insulation layer of uncured thermosetting elastomeric tape over the second adhesive layer in a helical wrap; applying an overlapping layer of fabric to surround said insulation layer; applying a layer of heat-shrinkable polymeric material tape in a helical wrap to surround said fabric; and positioning a sleeve of heat-shrinkable polymeric material to surround the layer of heat shrinkable tape.
Claim 6
Independent Claim
131 words
A method for forming a cable splice comprising the steps of joining the exposed conductor ends with sleeve means frictionally engaging said conductors; coating the sleeve means and the exposed conductors with a first layer of liquid adhesive; applying a foil formed of lead or lead-tin alloy over the first adhesive layer; applying a second layer of liquid adhesive over the layer of foil and extending over the exposed insulation; applying an insulation layer of uncured thermosetting elastomeric tape over the second adhesive layer in a helical wrap; applying an overlapping layer of fabric to surround said insulation layer; applying a layer of heat-shrinkable polymeric material tape in a helical wrap to surround said fabric; and positioning a sleeve of heat-shrinkable polymeric material to surround the layer of heat shrinkable tape.
Claim 7
Dependent Claim
19 words
The method of claim 4 further comprising the step of thermally-treating the splice to shrink said heat-shrinkable polymeric materials.
Claim 8
Dependent Claim
119 words
A cable splice comprising: a metallic sleeve member extending over conductor end portions and frictionally engaging the conductor end portions; a first layer of adhesive covering said sleeve member and extending over exposed conductor end portions; a helically wrapped insulation layer of uncured thermosetting elastomeric polymer tape surrounding said layer of adhesive; an overlapped layer of fabric; a helically-wrapped layer of heat-shrinkable polymeric material tape surrounding said layer of fabric; a sleeve of heat shrinkable polymeric material surrounding said layer of heat shrinkable polymeric material tape; and a layer of foil located intermediate said metallic sleeve member and said helically-wrapped layer of heat-shrinkable polymeric material tape, said layer of foil being covered with a second layer of adhesive covering.
Claim 9
Dependent Claim
119 words
A cable splice comprising: a metallic sleeve member extending over conductor end portions and frictionally engaging the conductor end portions; a first layer of adhesive covering said sleeve member and extending over exposed conductor end portions; a helically wrapped insulation layer of uncured thermosetting elastomeric polymer tape surrounding said layer of adhesive; an overlapped layer of fabric; a helically-wrapped layer of heat-shrinkable polymeric material tape surrounding said layer of fabric; a sleeve of heat shrinkable polymeric material surrounding said layer of heat shrinkable polymeric material tape; and a layer of foil located intermediate said metallic sleeve member and said helically-wrapped layer of heat-shrinkable polymeric material tape, said layer of foil being covered with a second layer of adhesive covering.
Claim 10
Dependent Claim
16 words
The cable splice of claim 6, wherein the fabric layer end portions are coated with adhesive.
Claim 11
Independent Claim
135 words
A method for forming a cable splice comprising the steps of: joining the exposed conductor ends with sleeve means frictionally engaging said conductors; coating the sleeve means and the exposed conductors with a first layer of liquid adhesive; applying an insulation layer of uncured thermosetting elastomeric polymer tape over the first layer of liquid adhesive in a helical wrap; applying an overlapping layer of fabric to surround said insulation layer; applying a layer of heat-shrinkable polymeric material tape in a helical wrap to surround said fabric; positioning a sleeve of heat-shrinkable polymeric material to surround the layer of heat shrinkable tape; and positioning a layer of foil intermediate said metallic sleeve member and said helically wrapped layer of heat-shrinkable polymeric material tape, said layer of foil being covered with a second layer of adhesive covering.
Claim 12
Independent Claim
135 words
A method for forming a cable splice comprising the steps of: joining the exposed conductor ends with sleeve means frictionally engaging said conductors; coating the sleeve means and the exposed conductors with a first layer of liquid adhesive; applying an insulation layer of uncured thermosetting elastomeric polymer tape over the first layer of liquid adhesive in a helical wrap; applying an overlapping layer of fabric to surround said insulation layer; applying a layer of heat-shrinkable polymeric material tape in a helical wrap to surround said fabric; positioning a sleeve of heat-shrinkable polymeric material to surround the layer of heat shrinkable tape; and positioning a layer of foil intermediate said metallic sleeve member and said helically wrapped layer of heat-shrinkable polymeric material tape, said layer of foil being covered with a second layer of adhesive covering.
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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) | 1986-01-24 | 1986-07-26 | 1987-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-24 | 1990-07-26 | 1991-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-24 | 1994-07-26 | 1995-01-25 | $7700.00 | Window Closed / Lapsed |