Patent US3887761A successfully refreshed from Google Patents.
US3887761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape wrapped conductor
Assignee: Gore Enterprise Holdings Inc
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Filing: 1973-02-20
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Granted: 1975-06-03
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Expires: 1993-02-20
Abstract
Abstract This invention involves products, apparatus and processes for so controlling the feed rate of a film being spirally wrapped around an electrical conductor that the elongation of the film is precisely controlled and consequently the thickness of the overlapping layers of insulation is very uniform.
Inventors
- 👤 Wilbert L Gore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:53
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/06; H01B13/08; H01B13/085
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
91 words
AN INSULATED ELECTRICAL CONDUCTOR OF CONTINUOUS LENGTH HAVING EXCEPTIONALLY UNIFORM OUTSIDE DIAMETER, SAID INSULATED CONDUCOTR COMPRISING: A. A CONDUCTOR OF CONTINUOUS LENGHT, B. A SYNTHETIC POLYMERIC TAPE SPIRALLY WRAPPED ABOUT SAID CONDUCTOR, C. SAID TAPE HAVING THE PHYSICAL PROPERTY THAT AT STRAIN ABOVE ABOUT 5% THE TAPE EXHIBTS A SMALL SLOPE IN ITS CHARACTERISTIC STRESS-STRAIN CURVE, D. SAID TAPE HAVING BEEN CONSTANTLY ELONGATED DURING THE WRAPPING PROCESS, AND E. SAID TAPE HAVING A SUBSTANTIALLY CONSTANT WIDTH ALONG THE LENGTH OF SAID CONDUCTOR F. SAID INSULATED CONDUCTOR HAVING A UNIFORM OUTSIDE DIAMETER.
Claim 2
Dependent Claim
91 words
AN INSULATED ELECTRICAL CONDUCTOR OF CONTINUOUS LENGTH HAVING EXCEPTIONALLY UNIFORM OUTSIDE DIAMETER, SAID INSULATED CONDUCOTR COMPRISING: A. A CONDUCTOR OF CONTINUOUS LENGHT, B. A SYNTHETIC POLYMERIC TAPE SPIRALLY WRAPPED ABOUT SAID CONDUCTOR, C. SAID TAPE HAVING THE PHYSICAL PROPERTY THAT AT STRAIN ABOVE ABOUT 5% THE TAPE EXHIBTS A SMALL SLOPE IN ITS CHARACTERISTIC STRESS-STRAIN CURVE, D. SAID TAPE HAVING BEEN CONSTANTLY ELONGATED DURING THE WRAPPING PROCESS, AND E. SAID TAPE HAVING A SUBSTANTIALLY CONSTANT WIDTH ALONG THE LENGTH OF SAID CONDUCTOR F. SAID INSULATED CONDUCTOR HAVING A UNIFORM OUTSIDE DIAMETER.
Claim 3
Dependent Claim
91 words
An insulated electrical conductor of continuous length having exceptionally uniform outside diameter, said insulated conductor comprising: a. a conductor of continuous length; b. a synthetic polymeric tape spirally wrapped about said conductor; c. said tape having the physical property that at strains above about 5% the tape exhibits a small slope in its characteristic stress-strain curve; d. said tape having been constantly elongated during the wrapping process; and e. said tape having a substantially constant width along the length of said conductor f. said insulated conductor having a uniform outside diameter.
Claim 4
Dependent Claim
91 words
An insulated electrical conductor of continuous length having exceptionally uniform outside diameter, said insulated conductor comprising: a. a conductor of continuous length; b. a synthetic polymeric tape spirally wrapped about said conductor; c. said tape having the physical property that at strains above about 5% the tape exhibits a small slope in its characteristic stress-strain curve; d. said tape having been constantly elongated during the wrapping process; and e. said tape having a substantially constant width along the length of said conductor f. said insulated conductor having a uniform outside diameter.
Claim 5
Dependent Claim
19 words
An insulated conductor in accordance with claim 1 in which said polymeric tape is composed of a tetrafluoroethylene polymer.
Claim 6
Dependent Claim
14 words
An insulated conductor in accordance with claim 2 in which said tape is polytetrafluoroethylene.
Claim 7
Dependent Claim
19 words
An insulated conductor in accordance with claim 2 in which said tape is a copolymer of tetrafluoroethylene and hexafluoropropylene.
Claim 8
Dependent Claim
19 words
An insulated conductor in accordance with claim 2 in which said tape is a copolymer of tetrafluoroethylene and ethylene.
Claim 9
Dependent Claim
14 words
An insulated conductor in accordance with claim 1 in which said tape is poly(chlorotrifluoroethylene).
Claim 10
Dependent Claim
14 words
An insulated conductor in accordance with claim 1 in which said tape is poly(ethyleneterephthalate).
Claim 11
Dependent Claim
16 words
An insulated electrical conductor in accordance with claim 1 in which said tape is a polyester.
Claim 12
Dependent Claim
15 words
An insulated conductor in accordance with claim 1 in which said tape is a polyimide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |