US4031284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated and grounded fence fabric
Assignee: NATIONAL WIRE PRODUCTS INDUSTRIES Inc
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Filing: 1975-06-02
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Granted: 1977-06-21
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Expires: 1995-06-02
Abstract
Abstract Fence fabric formed of a multiplicity of entwining electrically conductive metal wire cores each coated with a heat disintegrable electrical insulation is rendered susceptible to grounding by disposing each of said metal cores in contact with at least one electrically conductive ground element. To produce this product, one or more of the foregoing conductive elements is placed in permanent contact with each coated wire of the fence fabric and sufficient current passed through said conductive element to disintegrate the insulation coating and provide an electrically conductive path between the metal core of each of said wires and said electrical conductor.
Inventors
- 👤 Glen E. Ingraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:26
CPC Classifications
E; E04; E04H; E04H17/00; E04H17/02; E04H17/04; E04H17/05; H; H05; H05F; H05F3/00; H05F3/02; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249922
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
102 words
In a fence fabric construction formed of a plurality of individually coated wires each composed of a metal core enveloped by a heat-distintegrable electrically non-conductive coating, adjoining pairs of said coated wires being engaged at, at least, one point along their length, the improvement that comprises an elongated metal conductor element permanently interlocked by, and defining a passage through, each of said adjoining pairs of coated wires at the point of engagement thereof with each other; said conductor element being disposed in electrical connection with the metal cores of each of said adjoining coated wires at each of said points of engagement.
Claim 2
Dependent Claim
102 words
In a fence fabric construction formed of a plurality of individually coated wires each composed of a metal core enveloped by a heat-distintegrable electrically non-conductive coating, adjoining pairs of said coated wires being engaged at, at least, one point along their length, the improvement that comprises an elongated metal conductor element permanently interlocked by, and defining a passage through, each of said adjoining pairs of coated wires at the point of engagement thereof with each other; said conductor element being disposed in electrical connection with the metal cores of each of said adjoining coated wires at each of said points of engagement.
Claim 3
Dependent Claim
20 words
A fence fabric as claimed in claim 1 wherein said adjoining pairs of coated wires are disposed in helical coils.
Claim 4
Dependent Claim
24 words
A fence fabric as claimed in claim 2 wherein said helical coils form terminal barbs along at least one selvage of said fence fabric.
Claim 5
Dependent Claim
20 words
A fence fabric as claimed in claim 3 wherein said barbs are disposed along two selvages of said fence fabric.
Claim 6
Dependent Claim
18 words
A fence fabric as claimed in claim 1 wherein said elongated metal conductor element is a ground wire.
Claim 7
Dependent Claim
18 words
A fence fabric as claimed in claim 5 wherein said elongated electrical conductor is a flexible multi-strand wire.
Claim 8
Dependent Claim
18 words
A fence fabric as claimed in claim 5 wherein said elongated electrical conductor is a single strand wire.
Claim 9
Dependent Claim
20 words
A fence fabric as claimed in claim 1 wherein said elongated metal conductor is disposed substantially transversely through helical coils.
Claim 10
Dependent Claim
15 words
A fence fabric as claimed in claim 1 wherein said coating is a thermoplastic resin.
Claim 11
Dependent Claim
40 words
A fence fabric as claimed in claim 9, wherein said coating is a thermoplastic resin prepared from a vinyl halide comonomer alone or together with a vinyl ester monomer of the formula ##STR2## wherein R is a lower alkyl moiety.
Claim 12
Dependent Claim
16 words
A fence fabric as claimed in claim 9 wherein said thermoplastic resin is plasticized polyvinyl chloride.
Claim 13
Dependent Claim
19 words
A fence fabric as claimed in claim 1 wherein said conductor element is in electrical connection with the ground.
Claim 14
Dependent Claim
13 words
A fence fabric as claimed in claim 1 wherein said fabric is woven.
Claim 15
Dependent Claim
16 words
A fence fabric as claimed in claim 13 wherein said fence fabric is of chain-link construction.
References Cited (Backward Citations)
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Cited
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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) | 1980-06-20 | 1980-12-20 | 1981-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-20 | 1984-12-20 | 1985-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-20 | 1988-12-20 | 1989-06-21 | $7700.00 | Window Closed / Lapsed |