US3885380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacturing filled cable
Assignee: AT&T Inc
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Filing: 1973-08-15
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Granted: 1975-05-27
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Expires: 1993-08-15
Abstract
Abstract A filled telephone service cable which runs from a distribution cable to a subscribers'' premises or to a pay station is another link in a buried communications system having a water-resisting capability. A service cable is manufactured to include four individually insulated conductors constructed of a material having at least a predetermined yield strength twisted to form a spiralled quaded core. In order to impart water-resisting capability to the cable, the interstices between the conductors and between the conductors and a subsequently applied jacket are filled with a flame retardant water-resistant composition. The core, including the individually insulated conductors, is advanced into a bath of the waterproofing composition. The configuration of the core is changed as the conductors are advanced through the bath to permit substantially the entire periphery of the conductors to be exposed to the composition. Subsequently, the conductors are permitted to reform into the original core configuration with portions of the composition filling the interstices between the conductors. The reformation is facilitated by the changes in strain produced by the elastic recovery of the conductors. Excess composition is removed from the outwardly facing portions of the core as the core is advanced out of the bath.
Inventors
- 👤 Joseph Michael Hacker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:56
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/22; H01B11/00; H01B11/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49194
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
155 words
A method of making a stranded core having the interstices thereof filled with a composition, which includes the steps of: stranding a plurality of elongated members about a longitudinal center line to form a core, each of the elongated members having at least a predetermined yield strength; advancing the stranded core through a bath of a composition; applying forces to the core to first cause the configuration of the core to be changed to expose portions of the elongated members which in the original configuration of the core are not exposed to the composition and then to permit the elongated members because of the elastic properties associated with the yield strength thereof to be reformed into a stranded core and cause the interstices between the elongated members to be filled substantially with the composition; and removing excess composition from the reformed core to form a generally regularly shaped contour of the composition about the core.
Claim 2
Independent Claim
155 words
A method of making a stranded core having the interstices thereof filled with a composition, which includes the steps of: stranding a plurality of elongated members about a longitudinal center line to form a core, each of the elongated members having at least a predetermined yield strength; advancing the stranded core through a bath of a composition; applying forces to the core to first cause the configuration of the core to be changed to expose portions of the elongated members which in the original configuration of the core are not exposed to the composition and then to permit the elongated members because of the elastic properties associated with the yield strength thereof to be reformed into a stranded core and cause the interstices between the elongated members to be filled substantially with the composition; and removing excess composition from the reformed core to form a generally regularly shaped contour of the composition about the core.
Claim 3
Independent Claim
178 words
A method of making a cable core having the interstices thereof filled with a composition, which includes the steps of: stranding a plurality of insulated conductors about a longitudinal center line to form a core, each of the conductors having a conductive element thereof made from a material having at least a predetermined yield strength; advancing the stranded core through a bath of a composition; applying forces to the core by directing the core into and out of engagement with a plurality of prearranged surfaces within the bath to first cause the configuration of the core to be changed to expose portions of the conductors which in the original configuration of the core are not exposed to the composition and then to permit the conductors because of the elastic properties associated with the yield strength thereof to be reformed into a stranded core and cause the interstices between the conductors to be filled substantially with the composition; and removing excess composition from the reformed core to form a generally regularly shaped contour of the composition about the core.
Claim 4
Independent Claim
178 words
A method of making a cable core having the interstices thereof filled with a composition, which includes the steps of: stranding a plurality of insulated conductors about a longitudinal center line to form a core, each of the conductors having a conductive element thereof made from a material having at least a predetermined yield strength; advancing the stranded core through a bath of a composition; applying forces to the core by directing the core into and out of engagement with a plurality of prearranged surfaces within the bath to first cause the configuration of the core to be changed to expose portions of the conductors which in the original configuration of the core are not exposed to the composition and then to permit the conductors because of the elastic properties associated with the yield strength thereof to be reformed into a stranded core and cause the interstices between the conductors to be filled substantially with the composition; and removing excess composition from the reformed core to form a generally regularly shaped contour of the composition about the core.
Claim 5
Independent Claim
207 words
A method of making a quaded cable having the interstices thereof filled with a composition, which includes the steps of: forming spirally a plurality of insulated conductors about a longitudinal center line, each of the conductors having a conductive element thereof made from a material having at least a predetermined yield strength; advancing the spirally quaded core through a bath of the composition; directing the core into and then out of engagement with a plurality of surfaces within the bath to cause the configuration of the quaded core to be changed to expose portions of the conductors which are inaccessible in the original configuration of the quaded cOre to the composition; further directing the core into and then out of engagement with at least one other surface such that the elasticity associated with the predetermined yield strength of the material of which the conductors are made causes the conductors to become reformed into the original configuration of the quaded core; and removing excess composition from the quaded core to form a generally regularly shaped contour of the composition about the core, the reformation of the core and the subsequent removal therefrom of excess amounts of the composition causing the interstices thereof to be filled with the composition.
Claim 6
Independent Claim
207 words
A method of making a quaded cable having the interstices thereof filled with a composition, which includes the steps of: forming spirally a plurality of insulated conductors about a longitudinal center line, each of the conductors having a conductive element thereof made from a material having at least a predetermined yield strength; advancing the spirally quaded core through a bath of the composition; directing the core into and then out of engagement with a plurality of surfaces within the bath to cause the configuration of the quaded core to be changed to expose portions of the conductors which are inaccessible in the original configuration of the quaded cOre to the composition; further directing the core into and then out of engagement with at least one other surface such that the elasticity associated with the predetermined yield strength of the material of which the conductors are made causes the conductors to become reformed into the original configuration of the quaded core; and removing excess composition from the quaded core to form a generally regularly shaped contour of the composition about the core, the reformation of the core and the subsequent removal therefrom of excess amounts of the composition causing the interstices thereof to be filled with the composition.
Claim 7
Dependent Claim
20 words
The method of claim 3, wherein the predetermined yield strength is 10,000 pounds per square inch at 0.5 percent offset.
Claim 8
Independent Claim
167 words
A method of applying a waterproofing composition to a stranded core comprised of a plurality of elongated members which includes the steps of: advancing the core through a bath of a composition, which is to fill the interstices of the core and coat the exterior thereof, in a predetermined tortuous path to first cause forces to be applied to the core to (1) change sequentially the configuration of successive sections of the core to expose substantially the entire periphery of each of the elongated members to the composition and then (2) to facilitate the reformation of the core because of the yield strength of the material from which the members is made being at least a predetermined value; and removing excess amounts of the composition from the reformed core to yield a core having a regularly shaped envelope of composition, the reformation of the core and the subsequent removal therefrom of the excess amounts of the composition causing the interstices thereof to be filled with the composition.
Claim 9
Independent Claim
167 words
A method of applying a waterproofing composition to a stranded core comprised of a plurality of elongated members which includes the steps of: advancing the core through a bath of a composition, which is to fill the interstices of the core and coat the exterior thereof, in a predetermined tortuous path to first cause forces to be applied to the core to (1) change sequentially the configuration of successive sections of the core to expose substantially the entire periphery of each of the elongated members to the composition and then (2) to facilitate the reformation of the core because of the yield strength of the material from which the members is made being at least a predetermined value; and removing excess amounts of the composition from the reformed core to yield a core having a regularly shaped envelope of composition, the reformation of the core and the subsequent removal therefrom of the excess amounts of the composition causing the interstices thereof to be filled with the composition.
Claim 10
Dependent Claim
23 words
The method of claim 5, wherein the predetermined value of the yield strength is 10,000 pounds per square inch at 0.5 percent offset.
Claim 11
Dependent Claim
65 words
The method of claim 5, wherein the core is advanced in a path into, and through the bath in the predetermined tortuous path and then in a path out of the bath of the composition, the tortuous path including a portion at some predetermined angle to the path into the composition and a portion at some predetermined angle to the path out of the bath.
Claim 12
Dependent Claim
17 words
The method of claim 7, wherein the predetermined angle lies in the range of 20* to 70*.
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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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |