US3745230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal sheathed electrical wire cable
Assignee: Individual
•
Filing: 1972-01-12
•
Granted: 1973-07-10
•
Expires: 1992-01-12
Abstract
Abstract A metal sheathed electrical wire cable having a sheath formed of a metal strip. The strip is formed to define a space in which a pair of wires are positioned. The opposite edtes of the strip are joined together and urged downwardly to between the wires to define a substantially fully enclosed raceway for each of the respective wires. The edge portions may comprise flanges facially welded together at a point remote from the wires so as to avoid heat damage to the wire insulation. The sheath may be provided with a longitudinal notch to define a means for facilitating tearing of the sheath to expose desired wire portions.
Inventors
- 👤 W Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:10
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/17; H01B7/18; H01B7/20; H01B7/207; H01B13/00; H01B13/22; H01B13/26; H01B13/2613; H01B7/22; H01B7/221
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
103 words
An electrical cable comprising: a one-piece elongated metal sheath defining a longitudinal centerline in a first wall portion, a pair of raceways at opposite sides of said centerline comprising opposite side portions of said elongated sheath inturned back to adjacent said longitudinal centerline to define tubular spaced second raceway wall portions, and a longitudinally extending joint disposed between said raceways and extending from adjacent said first wall portion outwardly between said raceways comprising the distal edge portion of said sheath returned from said sheath side portions, said distal edge portions being fixedly facially joined; and insulated electrical wires extending longitudinally in said raceways.
Claim 2
Dependent Claim
103 words
An electrical cable comprising: a one-piece elongated metal sheath defining a longitudinal centerline in a first wall portion, a pair of raceways at opposite sides of said centerline comprising opposite side portions of said elongated sheath inturned back to adjacent said longitudinal centerline to define tubular spaced second raceway wall portions, and a longitudinally extending joint disposed between said raceways and extending from adjacent said first wall portion outwardly between said raceways comprising the distal edge portion of said sheath returned from said sheath side portions, said distal edge portions being fixedly facially joined; and insulated electrical wires extending longitudinally in said raceways.
Claim 3
Dependent Claim
13 words
The electrical cable of claim 1 wherein said joint comprises a welded joint.
Claim 4
Dependent Claim
14 words
The electrical cable of claim 2 wherein said joint comprises a seam welded joint.
Claim 5
Dependent Claim
19 words
The electrical cable of claim 1 wherein four substantially equal thicknesses of said sheath are disposed between said raceways.
Claim 6
Dependent Claim
20 words
The electrical cable of claim 1 wherein said joint comprises a pair of planar sheath edge portions in facial juxtaposition.
Claim 7
Dependent Claim
20 words
The electrical cable of claim 1 wherein said joint contacts said first wall portion at opposite sides of said centerline.
Claim 8
Dependent Claim
32 words
The electrical cable of claim 1 wherein said joint comprises substantially planar edge portions of the sheath and said raceways are defined by substantially cylindrical portions extending over 270* about the wires.
Claim 9
Dependent Claim
19 words
The electrical cable of claim 1 wherein said distal edge portions are fixedly facially joined by an adhesive bond.
Claim 10
Dependent Claim
21 words
The electrical cable of claim 1 wherein said distal edge portions are fixedly facially joined by a set thermosetting resin bond.
Claim 11
Dependent Claim
21 words
The electrical cable of claim 1 wherein said distal edge portions are fixedly facially joined by a set epoxy resin bond.
Claim 12
Dependent Claim
29 words
The electrical cable of claim 1 wherein said distal edge portions define a plurality of longitudinal grooves and are fixedly facially joined by bonding means provided in said grooves.
Claim 13
Dependent Claim
59 words
The electrical cable of claim 1 wherein said sheath further defines a third raceway outwardly of said second raceway, said centerline being disposed substantially one-third the width of said cable from the side thereof adjacent said first raceway to be disposed between said first and second raceways, and a third insulated wire is disposed coaxially in said third raceway.
Claim 14
Dependent Claim
97 words
The electrical cable of claim 1 wherein said sheath further defines a third raceway outwardly of said second raceway, said centerline being disposed substantially one-third the width of said cable from the side thereof adjacent said first raceway to be disposed between said first and second raceways, and a third insulated wire is disposed coaxially in said third raceway, said first wall portion being provided with an outwardly opening longitudinal groove defining a tear line for facilitating stripping of the sheath from the wires to expose selected wire portions, said groove being disposed substantially at said ceNterline.
Claim 15
Dependent Claim
19 words
The electrical cable of claim 1 wherein said sheath is further inturned to define at least one additional raceway.
Claim 16
Dependent Claim
99 words
An electrical cable comprising: an elongated metal sheath defining a longitudinal centerline in a first wall portion, a pair of raceways at opposite sides of said centerline, and a longitudinally extending joint disposed between said raceways and extending from a second wall portion opposite said first wall portion to said first wall portion whereby said raceways define substantially separated raceways; and insulated electrical wires extending longitudinally in said raceways, said first wall portion being provided with an outwardly opening longitudinal groove defining a tear line for facilitating stripping of the sheath from the wires to expose selected wire portions.
Claim 17
Dependent Claim
99 words
An electrical cable comprising: an elongated metal sheath defining a longitudinal centerline in a first wall portion, a pair of raceways at opposite sides of said centerline, and a longitudinally extending joint disposed between said raceways and extending from a second wall portion opposite said first wall portion to said first wall portion whereby said raceways define substantially separated raceways; and insulated electrical wires extending longitudinally in said raceways, said first wall portion being provided with an outwardly opening longitudinal groove defining a tear line for facilitating stripping of the sheath from the wires to expose selected wire portions.
Claim 18
Dependent Claim
95 words
An electrical cable comprising: an elongated metal sheath defining a longitudinal centerline in a first wall portion, a pair of raceways at opposite sides of said centerline, and a longitudinally extending joint disposed between said raceways and extending from a second wall portion opposite said first wall portion to said first wall portion whereby said raceways define substantially separated raceways; and insulated electrical wires extending longitudinally in said raceways, the end of said sheath being partially stripped and folded back, and screw means being provided in association with the stripped end for grounding the cable.
Claim 19
Dependent Claim
95 words
An electrical cable comprising: an elongated metal sheath defining a longitudinal centerline in a first wall portion, a pair of raceways at opposite sides of said centerline, and a longitudinally extending joint disposed between said raceways and extending from a second wall portion opposite said first wall portion to said first wall portion whereby said raceways define substantially separated raceways; and insulated electrical wires extending longitudinally in said raceways, the end of said sheath being partially stripped and folded back, and screw means being provided in association with the stripped end for grounding the cable.
Claim 20
Dependent Claim
21 words
The electrical cable of claim 16 wherein said folded stripped end extends substantially perpendicularly to the longitudinal extent of the cable.
Claim 21
Dependent Claim
112 words
An electrical cable comprising: a one-piece elongated metal strip sheath defining a longitudinal centerline in a first wall portion, a pair of raceways at opposite sides of said centerline comprising opposite side portions of said elongated sheath inturned back to adjacent said longitudinal centerline to define tubular spaced second raceway wall portions, and a longitudinally extending joint disposed between said raceways and extending from adjacent said first wall portion outwardly between said raceways comprising the distal edge portion of said sheath returned from said sheath side portions; adhesive means bonding said distal edge portions together whereby said edge portions are fixedly facially joined; and insulated electrical wires extending longitudinally in said raceways.
Claim 22
Dependent Claim
112 words
An electrical cable comprising: a one-piece elongated metal strip sheath defining a longitudinal centerline in a first wall portion, a pair of raceways at opposite sides of said centerline comprising opposite side portions of said elongated sheath inturned back to adjacent said longitudinal centerline to define tubular spaced second raceway wall portions, and a longitudinally extending joint disposed between said raceways and extending from adjacent said first wall portion outwardly between said raceways comprising the distal edge portion of said sheath returned from said sheath side portions; adhesive means bonding said distal edge portions together whereby said edge portions are fixedly facially joined; and insulated electrical wires extending longitudinally in said raceways.
Claim 23
Dependent Claim
14 words
The electrical cable of claim 18 wherein said adhesive means comprises a thermoset plastic.
Claim 24
Dependent Claim
33 words
The electrical cable of claim 18 wherein at least one of said side edge portions is provided with a groove extending longitudinally of the strip and receiving a portion of said adhesive means.
Claim 25
Dependent Claim
31 words
The electrical cable of claim 18 wherein said side edge portions are provided with a plurality of grooves extending longitudinally of the strip and receiving a portion of said adhesive means.
References Cited (Backward Citations)
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Cited
US1840536A
Cited
US2043044A
Cited
US3206541A
Cited
US3430337A
Cited
US3404217A
Cited
US3422214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |