US3757029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shielded flat cable
Assignee: ABB Installation Products Inc
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Filing: 1972-08-14
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Granted: 1973-09-04
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Expires: 1992-08-14
Abstract
Abstract Two or more elongate, longitudinally aligned layers each having one or more electrically conductive elements at least partially embedded therein, and which may include a shield layer, are slidably disposed adjacent one another in overlapping relationship and tightly enclosed within an integral flexible plastic covering which may be extruded thereover to provide a multilayer flat cable assembly so arranged that upon the severance of the flexible plastic covering each of the layers is exposed and readily manipulatable for conveneint access to the individual conductive elements of the cable. The shield layer includes a plastic layer and the plastic cover may be bonded to the plastic layer.
Inventors
- 👤 J Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:09
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
157 words
Multilayer shielded flat cable comprising: a first elongate layer having a plurality of generally parallel conductors embedded in a planar sheet of flexible plastic insulating material; at least one shield layer having a width equal to the width of said first layer and having a flat contiguous sheet of electrically conductive material coated on one side only with at least one planar sheet of flexible plastic insulating material, said first and said shield layers being disposed in generally longitudinally overlapping slidable relationship one to the other with the uncoated side of said flat sheet of electrically conductive material facing said first layer; and a readily severable integral jacket of flexible plastic insulating material intimately encompassing said first and said shield layers, said jacket being bonded to said coating on said flat sheet of electrically conductive material to permit full exposure of the uncoated side of said flat sheet of electrically conductive material upon severance of said jacket.
Claim 2
Dependent Claim
157 words
Multilayer shielded flat cable comprising: a first elongate layer having a plurality of generally parallel conductors embedded in a planar sheet of flexible plastic insulating material; at least one shield layer having a width equal to the width of said first layer and having a flat contiguous sheet of electrically conductive material coated on one side only with at least one planar sheet of flexible plastic insulating material, said first and said shield layers being disposed in generally longitudinally overlapping slidable relationship one to the other with the uncoated side of said flat sheet of electrically conductive material facing said first layer; and a readily severable integral jacket of flexible plastic insulating material intimately encompassing said first and said shield layers, said jacket being bonded to said coating on said flat sheet of electrically conductive material to permit full exposure of the uncoated side of said flat sheet of electrically conductive material upon severance of said jacket.
Claim 3
Dependent Claim
26 words
Multilayer shielded flat cable as defined in claim 1 wherein said first layer planar sheet of flexible plastic insulating material is formed from flexible vinyl material.
Claim 4
Dependent Claim
115 words
Multilayer shielded flat cable as defined in claim 1 comprising two said shield layers, each having a flat contiguous sheet of electrically conductive material coated on one side only with at least one planar sheet of flexible plastic insulating material, said two shield layers being disposed on opposing sides of said first layer, the three layers being disposed in generally longitudinally overlapping slidable relationship one to another with the uncoated side of said flat sheet of electrically conductive material of each of said shield layers facing said first layer, said jacket intimately encompassing said first and said two shield layers and bonded to said coating on each of said flat sheets of electrically conductive material.
Claim 5
Dependent Claim
35 words
Multilayer shielded flat cable as defined in claim 1 wherein said coating on said flat contiguous sheet of electrically conductive material comprises a composite plastic structure formed of bonded layers of selective plastic insulating materials.
Claim 6
Dependent Claim
25 words
Multilayer flat cable as defined in claim 4 wherein at least one of said layers comprising said composite plastic structure is formed from polyester resin.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |