US3663359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color coding of pulp insulated conductors
Assignee: Nortel Networks Ltd
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Filing: 1970-05-01
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Granted: 1972-05-16
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Expires: 1990-05-01
Abstract
Abstract A method and apparatus for the intermittent marking or color coding of an absorbent sheath on a continuous wire strand, obtained by forming pulp material as a ribbon parallel to the wire and wrapping the pulp ribbon laterally about the wire, in which lateral stripes of dye are applied at spaced intervals to that surface of the pulp ribbon opposite the wire after the ribbon is formed and before it is wrapped around the wire. The dye stripes are applied to the pulp ribbon, while wet, by a marking roller located between a pulp vat and a polisher, and the stripes extend laterally the width of the ribbon.
Inventors
- 👤 David H Braim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:53
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/34; H01B13/341; H01B13/06; H01B13/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
48 words
A method as claimed in claim 1 in which the ribbon is passed between a pair of parallel rollers and in contact with each roller, the surface of one roller having circumferentially spaced longitudinal marking ribs carrying liquid dye on the surface thereof for transfer to the ribbon.
Claim 2
Dependent Claim
24 words
A method as claimed in claim 1 in which a plurality of ribbons travelling parallel one to another in a band are marked simultaneously.
Claim 3
Dependent Claim
105 words
In an apparatus for producing a wire strand insulated with a sheath of absorbent material marked longitudinally at spaced intervals, in which the wire is passed through a pulp vat and absorbent material is formed as a wet ribbon parallel to the wire, the wet ribbon being subsequently wrapped laterally around the wire by a polisher to form the sheath, marking means located adjacent the line of travel of the ribbon between the vat and the polisher to apply stripes of dye at spaced intervals along that surface of the ribbon tape opposite the wire with each stripe extending laterally the width of the ribbon.
Claim 4
Dependent Claim
53 words
Apparatus as claimed in claim 4 in which the marking means comprises a guide roller and a marking roller with the ribbon passing therebetween, the surface of the marking roller having circumferentially spaced longitudinal ribs, and means to apply liquid dye to the ribs of the marking roller for transfer to the ribbon.
Claim 5
Dependent Claim
59 words
Apparatus as claimed in claim 5 in which the means for applying liquid dye to the ribs of the marking roller comprise a supply roller partially immersed in a pool of liquid dye, a squeeze roller in running contact with the supply roller, and a transfer roller in running contact with both the supply roller and the marking roller.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |