US5600099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemically grafted electrical devices
Assignee: ABB Installation Products International LLC
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Filing: 1994-12-02
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Granted: 1997-02-04
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Expires: 2014-12-02
Abstract
Abstract An electrical device is provided having a conductive coating or layer chemically grafted to a support substrate to produce a durable, conductive surface permanently attached to the underlying substrate material. The grafted layer can be embodied in an electrical contact, and can also be embodied as electrical traces and contact areas of circuit boards and electrical and electronic devices and components. In another embodiment, the grafted layer can be provided in an RFI/EMI shield or ground plane.
Inventors
- 👤 David R. Crotzer
- 👤 Mark G. Hanrahan
- 👤 Charles S. Pickles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:38
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/02; H01R13/03; H01R13/035; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092; H05K1/095; H05K3/00; H05K3/10; H05K3/102; H05K3/30; H05K3/32; H05K3/325; H05K3/38; H01R13/648; H01R13/658; H01R13/6598; H01R13/6599; H05K2201/00; H05K2201/01; H05K2201/0104; H05K2201/0133; H05K2201/03; H05K2201/032; H05K2201/0329; H05K2203/00; H05K2203/11; H05K2203/1168
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
39 words
An electrical device comprising: a substrate having a surface; a conductive layer composed of a plurality of conductive particles each having a conductive coating; the conductive coatings of the particles being chemically bonded together and to the substrate surface.
Claim 2
Dependent Claim
39 words
An electrical device comprising: a substrate having a surface; a conductive layer composed of a plurality of conductive particles each having a conductive coating; the conductive coatings of the particles being chemically bonded together and to the substrate surface.
Claim 3
Dependent Claim
24 words
The electrical device of claim 1 wherein the conductive layer is composed of a plurality of conductive particles each having a conductive polymer coating.
Claim 4
Dependent Claim
32 words
An electrical material comprising: a substrate having a surface; a conductive coating chemically bonded to the substrate surface, the conductive coating composed of a chemically bonded conductive polymer matrix containing conductive particles.
Claim 5
Dependent Claim
32 words
An electrical material comprising: a substrate having a surface; a conductive coating chemically bonded to the substrate surface, the conductive coating composed of a chemically bonded conductive polymer matrix containing conductive particles.
Claim 6
Dependent Claim
11 words
The electrical material of claim 3 wherein the substrate is non-conductive.
Claim 7
Dependent Claim
11 words
The electrical material of claim 4 wherein the substrate is rigid.
Claim 8
Dependent Claim
11 words
The electrical material of claim 4 wherein the substrate is flexible.
Claim 9
Dependent Claim
19 words
The electrical material of claim 4 wherein the conductive coating is applied to selected areas of the substrate surface.
Claim 10
Dependent Claim
11 words
The electrical material of claim 3 wherein the substrate is conductive.
Claim 11
Dependent Claim
17 words
The electrical material of claim 3 further including an additional conductive layer disposed over the conductive layer.
Claim 12
Dependent Claim
12 words
The electrical material of claim 3 wherein the conductive particles are metal.
Claim 13
Dependent Claim
18 words
The electrical material of claim 3 wherein the substrate is flexible and wherein the conductive coating is flexible.
Claim 14
Dependent Claim
81 words
An electrical interconnect comprising: an elongated body of thermosetting material shaped to mate with a corresponding electrical contact element; a conductive layer chemically grafted to at least a portion of the surface of the thermosetting material; the thermosetting material being sized to be insertable into the mating electrical contact element and operative to expand in response to applied heat to form a permanent gas tight seal between the grafted conductive surface and a mating conductive surface of the electrical contact element.
Claim 15
Dependent Claim
81 words
An electrical interconnect comprising: an elongated body of thermosetting material shaped to mate with a corresponding electrical contact element; a conductive layer chemically grafted to at least a portion of the surface of the thermosetting material; the thermosetting material being sized to be insertable into the mating electrical contact element and operative to expand in response to applied heat to form a permanent gas tight seal between the grafted conductive surface and a mating conductive surface of the electrical contact element.
Claim 16
Dependent Claim
86 words
An electrical interconnect comprising: at least one annular ring having a resilient core and a chemically grafted conductive layer thereon; the annular ring being disposed around and in alignment with an opening in a substrate, the conductive layer of the annular ring being in electrical contact with a conductive element on the substrate; the opening through the annular ring being smaller than the dimension of an electrical terminal inserted therethrough such that a compressive force is provided between the inserted electrical terminal and the surrounding ring.
Claim 17
Dependent Claim
86 words
An electrical interconnect comprising: at least one annular ring having a resilient core and a chemically grafted conductive layer thereon; the annular ring being disposed around and in alignment with an opening in a substrate, the conductive layer of the annular ring being in electrical contact with a conductive element on the substrate; the opening through the annular ring being smaller than the dimension of an electrical terminal inserted therethrough such that a compressive force is provided between the inserted electrical terminal and the surrounding ring.
Claim 18
Dependent Claim
56 words
An electrical interconnect comprising: a substrate of rigid material having on at least a portion of one surface thereof a resilient material; and a conductive material chemically grafted to the exposed surface of the resilient material to provide a flexible conductive contact area, said conductive material composed of a chemically bonded polymer matrix containing conductive particles.
Claim 19
Dependent Claim
56 words
An electrical interconnect comprising: a substrate of rigid material having on at least a portion of one surface thereof a resilient material; and a conductive material chemically grafted to the exposed surface of the resilient material to provide a flexible conductive contact area, said conductive material composed of a chemically bonded polymer matrix containing conductive particles.
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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) | 2000-02-04 | 2000-08-05 | 2001-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-04 | 2004-08-05 | 2005-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-04 | 2008-08-05 | 2009-02-04 | $7700.00 | Window Closed / Lapsed |