Patent US3897187A successfully refreshed from Google Patents.
US3897187A
Expired / Lapsed
US
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Apparatus for the continuous production of laminated electric conductors
Assignee: STERLING GREENGATE CABLE Co Ltd
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Filing: 1973-08-13
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Granted: 1975-07-29
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Expires: 1993-08-13
Abstract
Abstract Apparatus for the continuous production of laminated conductors comprises drawing a plurality of conductors in strip form one above the other from pads or drums by a pair of catapillar tractors, passing the assembled strips through an extruder and to apply a coating of a plastics or elastomeric material to surround the conductors, drawing the coated conductors through a cooler or through a vulcanising unit by a second pair of catapillar tractors and finally winding the coated conductors onto a take up drum.
Inventors
- 👤 Leon Mole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:26
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/15; B29C48/154; B29C48/03; B29C48/07; B29C48/08
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
110 words
Apparatus for the continuous production of an insulation coated laminated metal electrical conductor assembly comprising means for continuously drawing flat metal conductor strips from a series of supply packages and assembling the strips one above the other with coextensive surfaces in electrically conductive contact, means for applying an electrically conductive lubricant to said surfaces between said strips for allowing relative movement between said strips in the assembly, means for coating the moving strip assembly by continuously extruding thereabout and therealong a surrounding continuous covering of electrically insulating material, means for setting said covering on the moving strip assembly, and means for winding the coated laminated conductor assembly into coil form.
Claim 2
Dependent Claim
110 words
Apparatus for the continuous production of an insulation coated laminated metal electrical conductor assembly comprising means for continuously drawing flat metal conductor strips from a series of supply packages and assembling the strips one above the other with coextensive surfaces in electrically conductive contact, means for applying an electrically conductive lubricant to said surfaces between said strips for allowing relative movement between said strips in the assembly, means for coating the moving strip assembly by continuously extruding thereabout and therealong a surrounding continuous covering of electrically insulating material, means for setting said covering on the moving strip assembly, and means for winding the coated laminated conductor assembly into coil form.
Claim 3
Dependent Claim
24 words
The apparatus defined in claim 1, wherein said setting means is means defining a cooling zone through which the coated strip assembly is drawn.
Claim 4
Dependent Claim
21 words
The apparatus defined in claim 1, wherein said setting means is a vulcanizing unit through which the coated strip is drawn.
Claim 5
Dependent Claim
30 words
The apparatus as defined in claim 1, wherein said lubricant applying means applies lubricant to all flat surfaces of said conductor strips prior to said coating of the laminated assembly.
References Cited (Backward Citations)
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US2682292A
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US3247020A
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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) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |