US4477298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable shielding method and apparatus
Assignee: AT&T Inc
•
Filing: 1982-09-24
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Granted: 1984-10-16
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Expires: 2002-09-24
Abstract
Abstract A cable shielding method and apparatus are disclosed wherein adhesive 42 is applied to a strip 40 of shielding material within a shield forming die 20 as the strip 40 is being formed about a cable core 10 with an overlapped shield seam.
Inventors
- 👤 William D. Bohannon, Jr.
- 👤 Michael D. Kinard
- 👤 Randy G. Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:09
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/22; H01B13/26; H01B13/2613; H01B13/262; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/1013; Y10T156/17; Y10T156/1798
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
130 words
A method of shielding a cable core comprising the steps of: (a) introducing the core and a strip of corrugated metallic shielding material into a shield forming die with the strip positioned at least partially about the core; (b) bringing opposed longitudinal side portions of the corrugated strip into a position of mutual adjacency with one side portion of the strip partially overlaid by the other side portion and with their corrugations substantially aligned; (c) coating the one side portion along a portion thereof which is not overlaid by the other side portion with adhesive; (d) bringing the strip into a position with the other side portion overlaying and pressed against the adhesive coated one side portion; and (e) advancing the core and strip out of the shield forming die.
Claim 2
Independent Claim
130 words
A method of shielding a cable core comprising the steps of: (a) introducing the core and a strip of corrugated metallic shielding material into a shield forming die with the strip positioned at least partially about the core; (b) bringing opposed longitudinal side portions of the corrugated strip into a position of mutual adjacency with one side portion of the strip partially overlaid by the other side portion and with their corrugations substantially aligned; (c) coating the one side portion along a portion thereof which is not overlaid by the other side portion with adhesive; (d) bringing the strip into a position with the other side portion overlaying and pressed against the adhesive coated one side portion; and (e) advancing the core and strip out of the shield forming die.
Claim 3
Dependent Claim
41 words
A method of shielding a cable core in accordance with claim 1, wherein during steps (b), (c) and (d) the other side portion of the strip of material is continually being wrapped further over the one side portion of the strip.
Claim 4
Dependent Claim
152 words
Apparatus for forming a sealed metallic shield about a cable core comprising a die having interior wall means for transforming a strip of cable shielding material passing through the die at least partially about a cable core passing through the die into a greater than full cable core encirclement shape with one longitudinal side portion of the strip covered by the opposite longitudinal side portion of the strip; and means for introducing adhesive into said die and onto the one longitudinal side portion of the strip after formed into a greater than full encirclement shape but prior to its being covered by the other side portion of the strip by said interior wall means and which includes a nozzle having an orifice located downline from that portion of said die wall means at which the strip of cable shielding material is initially transformed into the greater than full cable core encirclement shape.
Claim 5
Dependent Claim
152 words
Apparatus for forming a sealed metallic shield about a cable core comprising a die having interior wall means for transforming a strip of cable shielding material passing through the die at least partially about a cable core passing through the die into a greater than full cable core encirclement shape with one longitudinal side portion of the strip covered by the opposite longitudinal side portion of the strip; and means for introducing adhesive into said die and onto the one longitudinal side portion of the strip after formed into a greater than full encirclement shape but prior to its being covered by the other side portion of the strip by said interior wall means and which includes a nozzle having an orifice located downline from that portion of said die wall means at which the strip of cable shielding material is initially transformed into the greater than full cable core encirclement shape.
Claim 6
Dependent Claim
52 words
Cable shield forming apparatus in accordance with claim 3 wherein said die interior wall means comprises a generally conically shaped wall along a longitudinal portion of which a strip edge forming key extends, and wherein said adhesive introduction means is mounted to said die adjacent an end of said edge forming key.
References Cited (Backward Citations)
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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) | 1987-10-16 | 1988-04-16 | 1988-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-16 | 1992-04-16 | 1992-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-16 | 1996-04-16 | 1996-10-16 | $7700.00 | Window Closed / Lapsed |