Patent US6526710B1 successfully refreshed from Google Patents.
US4767893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable closing
Assignee: 3M Co
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Filing: 1984-09-17
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Granted: 1988-08-30
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Expires: 2004-09-17
Abstract
Abstract A cable closing method and the resultant cable closing constructed by enclosing the cable area to be closed with a flexible waterproof enclosure, wrapping the cable with a water-activatable urethane resin impregnated cloth to span the area enclosed by the flexible waterproof enclosure, wetting the water-activatable urethane resin impregnated cloth to activate the resin and permitting the urethane resin to cure.
Inventors
- 👤 James H. Ball
- 👤 William J. Seim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:38
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/08; H02G15/18; H02G15/196; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; H02G15/003
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
66 words
An electrical cable closing method for a cable including an outer waterproof sheath, comprising: enclosing the cable area to be closed with a flexible waterproof enclosure, wrapping the cable with a water activatable urethane resin impregnated cloth to span the area enclosed by the flexible waterproof enclosure, wetting the water activatable urethane resin impregnated cloth to activate the resin, and permitting the urethane resin to cure.
Claim 2
Dependent Claim
66 words
An electrical cable closing method for a cable including an outer waterproof sheath, comprising: enclosing the cable area to be closed with a flexible waterproof enclosure, wrapping the cable with a water activatable urethane resin impregnated cloth to span the area enclosed by the flexible waterproof enclosure, wetting the water activatable urethane resin impregnated cloth to activate the resin, and permitting the urethane resin to cure.
Claim 3
Dependent Claim
44 words
The electrical cable closing method of claim 1 wherein said flexible waterproof enclosure comprises a waterproof material that when applied is conformable at room temperature to fill the voids in the cable opening and a thin water barrier material over the conformable waterproof material.
Claim 4
Dependent Claim
43 words
The electrical cable closing method of claim 2 for creating a cable splice closure wherein said thin water barrier material is a water barrier film wrapped around the cable splice and affixed to the cable sheath at the ends of the splice area.
Claim 5
Dependent Claim
38 words
The electrical cable splice closing method of claim 3 wherein said step of enclosing the cable area to be closed includes tightly wrapping an elastic tape around said water barrier film before applying said urethane resin impregnated cloth.
Claim 6
Dependent Claim
55 words
The electrical cable closing method of claim 1 for creating a cable sheath repair wherein said flexible waterproof enclosure comprises a tape having a backing and a mastic coated on the backing, the tape being wound around the cable to span the sheath repair area with the mastic coating on the backing facing the cable.
Claim 7
Dependent Claim
36 words
The electrical cable sheath repair method of claim 5 wherein said step of enclosing the cable area to be closed includes tightly wrapping an elastic tape around said mastic tape before applying said urethane impregnated cloth.
Claim 8
Dependent Claim
19 words
The electrical cable closing method of claim 1 wherein said urethane resin impregnated cloth is a fiber glass cloth.
Claim 9
Dependent Claim
62 words
An electrical cable closing in a cable including an outer waterproof sheath, comprising: a flexible waterproof enclosure enclosing an opening in the cable, and a water activated urethane resin impregnated cloth wrapped around the cable to span the area surrounded by the waterproof enclosure, said urethane resin having been wetted and having been cured after said cloth is wrapped around the cable.
Claim 10
Dependent Claim
62 words
An electrical cable closing in a cable including an outer waterproof sheath, comprising: a flexible waterproof enclosure enclosing an opening in the cable, and a water activated urethane resin impregnated cloth wrapped around the cable to span the area surrounded by the waterproof enclosure, said urethane resin having been wetted and having been cured after said cloth is wrapped around the cable.
Claim 11
Dependent Claim
34 words
The electrical cable closing of claim 8 wherein said flexible waterproof enclosure comprises a waterproof material that fills the voids in the cable opening and a thin water barrier material over the waterproof material.
Claim 12
Dependent Claim
40 words
The electrical cable closing of claim 9 comprising a cable splice wherein said thin water barrier material is a water barrier film wrapped around the cable splice and affixed to the cable sheath at the ends of the splice area.
Claim 13
Dependent Claim
16 words
The electrical cable closing of claim 10 including an elastic tape wrapped around said barrier film.
Claim 14
Dependent Claim
57 words
The electrical cable closing of claim 9 comprising a sheath repair wherein said waterproof material and said thin water barrier material comprise a tape having a backing and a mastic coated on the backing, the tape being wound around the cable to span the sheath repair area with the mastic coating on the backing facing the cable.
Claim 15
Dependent Claim
17 words
The electrical cable sheath repair of claim 12 including an elastic tape tightly wrapped around said tape.
Claim 16
Dependent Claim
18 words
The electrical cable closing of claim 8 wherein said urethane resin impregnated cloth is a fiber glass cloth.
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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) | 1991-08-30 | 1992-02-29 | 1992-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-30 | 1996-02-29 | 1996-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-30 | 2000-02-29 | 2000-08-30 | $7700.00 | Window Closed / Lapsed |