Patent FR1328613A successfully refreshed from Google Patents.
Patent US3636241A successfully refreshed from Google Patents.
US3636241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone cable splice case
Assignee: AT&T Inc
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Filing: 1970-11-23
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Granted: 1972-01-18
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Expires: 1990-11-23
Abstract
Abstract This disclosure describes a splice closure for telephone cable pairs. The closure consists of a pair of plastic covers with metal lining or coating, and end plates of differing designs to accommodate from one to six cables. Internally, the closure includes a metallic harness at each end with outer and inner metal clamps placed around the cable and linked together with insulated metal tie bars. The closure is hermetically sealed at the faceplate-cover interface by a butyl rubber sealing compound. An air escape is included in the end plate to avoid air entrapment at the interface.
Inventors
- 👤 Robert Garland Baumgartner
- 👤 Kenneth Chambers Maclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:52
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/08; H02G15/10; H02G15/113; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/971
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
156 words
A closure for composite, sheathed multipair telephone cable comprising: an outer plastic cover comprising top and bottom mating shells, each with semicylindrical interior surfaces and a pair of spaced arcuate ribs formed at said surface ends, said shells having mating flanges extending outwardly along either side and having upturned edges, said flanges having matching grooves defining a closed chamber, bonding sealant in said chamber, plural longitudinal and plural circular transverse ribs formed on the outer surface of each said shell, each said transverse rib including an end web joining said flange upturned edge; first and second circular-rimmed end plates closely fitting between the respective said spaced arcuate ribs, bonding sealant between said rim and said arcuate ribs, each said end plate comprising means for enveloping said cable jacket; first and second cable-gripping means inwardly of the respective said end plates; and tie bar means for mechanically connecting said gripping means and for mounting said end plates.
Claim 2
Dependent Claim
156 words
A closure for composite, sheathed multipair telephone cable comprising: an outer plastic cover comprising top and bottom mating shells, each with semicylindrical interior surfaces and a pair of spaced arcuate ribs formed at said surface ends, said shells having mating flanges extending outwardly along either side and having upturned edges, said flanges having matching grooves defining a closed chamber, bonding sealant in said chamber, plural longitudinal and plural circular transverse ribs formed on the outer surface of each said shell, each said transverse rib including an end web joining said flange upturned edge; first and second circular-rimmed end plates closely fitting between the respective said spaced arcuate ribs, bonding sealant between said rim and said arcuate ribs, each said end plate comprising means for enveloping said cable jacket; first and second cable-gripping means inwardly of the respective said end plates; and tie bar means for mechanically connecting said gripping means and for mounting said end plates.
Claim 3
Dependent Claim
42 words
A closure pursuant to claim 1, wherein each said end plate further comprises a pair of annular outer ribs at the edge of said outer rim said ribs mounting in respective contacting relation between said spaced arcuate ribs of said mating shell.
Claim 4
Dependent Claim
99 words
A closure pursuant to claim 2, wherein each said end plate further comprises two or more dissemblable sections, and wherein said jacket-enveloping means comprises one or more pairs of semicylindrical surfaces each said surface comprising raised end walls and plural annular spaced ribs of lesser height than said end walls, each of said surfaces terminating in two mounting flanges each with a depressed midregion, defined between a pair of spaced notches placed widthwise across each said flange, the notch interior ends being closely adjacent said rib ends, and the notch exterior ends extending to the end plate rim surface.
Claim 5
Dependent Claim
57 words
A closure pursuant to claim 2, wherein each said end plate further comprises a pair of oppositely mounted saddles for receiving said tie bar means, and wherein the latter comprises U-shaped metallic rods with full insulative cover therearound except at their end portions, and means connecting each said end portion to a respective said end plate saddle.
Claim 6
Dependent Claim
62 words
A closure pursuant to claim 2, wherein said gripping means comprises two or more metallic clamps each having at least one semicylindrical corrugated interior surface, means for effecting electrical and mechanical contact between said surfaces and said cable sheath, means for fastening said clamps together, said clamps further comprising two open U-shaped slots for snug engaging and securing to said tie bar.
Claim 7
Dependent Claim
59 words
A closure pursuant to claim 2, further comprising means for joining said shells comprising plural square holes with bossed threaded and unthreaded inserts therein, one said hole located between each said web, said inserts slightly spaced apart when said flanges are in contact, said shells being drawn together by said bosses with a controlled force until said bosses contact.
Claim 8
Dependent Claim
37 words
A closure pursuant to claim 6 further comprising a metallic foil layer disposed on said shell interior surfaces between the two inwardmost said arcuate ribs, said foil serving as a shield for telephone conductors in said cable.
Claim 9
Dependent Claim
35 words
A closure pursuant to claim 7, further comprising tab means extending upwardly adjacent each said flange hole, said tab means firmly engaging one side of each associated said insert and fixing same in said hole.
Claim 10
Dependent Claim
31 words
A closure pursuant to claim 8 further comprising separate gastight grounding means connected to each said sheath gripping means, and leading through said end plate for connection externally to a ground.
Claim 11
Dependent Claim
88 words
A closure comprising: first and second semicylindrical plastic covers each having interior metallic lining, longitudinal joining flanges, and recessed end wells, end glands chambered in said end wells and comprising oNe or more axial circular entrances for passing cable, each entrance including circular rib means for trapping sealing compound and transverse air-bleeder corridors, each gland having two or more flanged sections, sintered stainless steel boss means embedded in each said section, means for adjusting the height of each said boss, and screw means for bringing together said bosses.
Claim 12
Dependent Claim
88 words
A closure comprising: first and second semicylindrical plastic covers each having interior metallic lining, longitudinal joining flanges, and recessed end wells, end glands chambered in said end wells and comprising oNe or more axial circular entrances for passing cable, each entrance including circular rib means for trapping sealing compound and transverse air-bleeder corridors, each gland having two or more flanged sections, sintered stainless steel boss means embedded in each said section, means for adjusting the height of each said boss, and screw means for bringing together said bosses.
References Cited (Backward Citations)
US3061666A
Cited
US3337681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |