US4286250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser formed resistor elements
Assignee: NEW ENGLAND INSTRUMENT Co
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Filing: 1979-05-04
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Granted: 1981-08-25
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Expires: 1999-05-04
Abstract
Abstract The invention is an electrical component with a body element comprising an organic substrate portion and a laser formed, resistor portion carburized thereon. A first electrical conductor is electrically connected to one location on the resistor portion so as to form one terminal for connection to an electrical circuit and a second electrical conductor is electrically connected to the resistor portion at a different location so as to form another terminal for connection to the electrical circuit.
Inventors
- 👤 Peter J. Sacchetti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:59
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/14; H01C1/144; H01C17/00; H01C17/06; H01C17/20; H01C17/22; H01C17/26; H01C17/265; H01C17/30; Y; Y10; Y10S; Y10S148/00; Y10S148/093; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49087
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
87 words
An electrical component comprising: an insulator substrate portion of a homogeneous organic body element and a carburized conductive resistor portion means formed from said homogeneous organic body element; a first electrical conductor electrically connected to one location on said resistor portion means so as to form one terminal for connection to an electrical circuit; and a second electrical conductor electrically connected to said resistor portion means at a different location spaced from said one location so as to form another terminal for connection to an electrical circuit.
Claim 2
Dependent Claim
87 words
An electrical component comprising: an insulator substrate portion of a homogeneous organic body element and a carburized conductive resistor portion means formed from said homogeneous organic body element; a first electrical conductor electrically connected to one location on said resistor portion means so as to form one terminal for connection to an electrical circuit; and a second electrical conductor electrically connected to said resistor portion means at a different location spaced from said one location so as to form another terminal for connection to an electrical circuit.
Claim 3
Dependent Claim
20 words
An electrical component according to claim 1 including electrically conductive fastener means securing said conductors to said resistor portion means.
Claim 4
Dependent Claim
15 words
An electrical component according to claim 2 wherein said fastener means comprises electrically conductive epoxy.
Claim 5
Dependent Claim
17 words
An electrical component according to claim 2 including an electrically insulative coating over said resistor portion means.
Claim 6
Dependent Claim
14 words
An electrical component according to claim 4 wherein said coating encapsulates said body element.
Claim 7
Dependent Claim
14 words
An electrical component according to claim 5 wherein said substrate portion is a plastic.
Claim 8
Dependent Claim
14 words
An electrical component according to claim 6 wherein said substrate portion is a polyimide.
Claim 9
Dependent Claim
28 words
An electrical component according to claim 2 wherein said substrate portion is a cylinder and said resistor portion is formed as a spiral on the cylindrical surface thereof.
Claim 10
Dependent Claim
21 words
An electrical component according to claim 8 wherein said fastener means comprise conductive end caps on the ends of said cylinder.
Claim 11
Dependent Claim
57 words
An electrical component according to claim 1 wherein said resistor portion means comprises a plurality of discrete carburized resistor portions spaced apart on said substrate portion and including a plurality of said first conductors, one connected to each of said resistor portions and a plurality of said second conductors, one connected to each of said resistor portions.
Claim 12
Dependent Claim
20 words
An electrical component according to claim 10 including electrically conductive fastener means securing said conductors to said resistor portion means.
Claim 13
Dependent Claim
17 words
An electrical component according to claim 11 including an electrically insulative coating over said resistor portion means.
Claim 14
Dependent Claim
29 words
An electrical component according to claim 1 wherein said resistor portion means comprises a discrete carburized resistor portion having ends electrically connected to said first and second electrical conductors.
Claim 15
Dependent Claim
25 words
An electrical component according to claim 13 including a third electrical conductor electrically connected to said resistor portion at a position between said ends thereof.
Claim 16
Dependent Claim
20 words
An electrical component according to claim 14 including electrically conductive fastener means securing said conductors to said resistor portion means.
Claim 17
Dependent Claim
17 words
An electrical component according to claim 15 including an electrically insulative coating over said resistor portion means.
Claim 18
Independent Claim
68 words
A method of making electrical components comprising the steps of: forming a homogeneous organic substrate; applying heat so as to carburize only a predetermined conductive resistor portion of said substrate and leave an insulator substrate portion thereof; attaching a first electrical conductor to one location on said resistor portion; and attaching a second electrical conductor to said resistor portion at a different location spaced from said one location.
Claim 19
Independent Claim
68 words
A method of making electrical components comprising the steps of: forming a homogeneous organic substrate; applying heat so as to carburize only a predetermined conductive resistor portion of said substrate and leave an insulator substrate portion thereof; attaching a first electrical conductor to one location on said resistor portion; and attaching a second electrical conductor to said resistor portion at a different location spaced from said one location.
Claim 20
Dependent Claim
26 words
A method according to claim 17 wherein said applying step comprises directing a laser beam on said substrate so as to carburize said resistor portion thereof.
Claim 21
Dependent Claim
23 words
A method according to claim 17 including the step of fixing said resistor portion to said conductors with an electrically conductive fastener means.
Claim 22
Dependent Claim
16 words
A method according to claim 19 wherein said fixing step comprises applying an electrically conductive epoxy.
Claim 23
Dependent Claim
19 words
A method according to claim 19 including the step of covering said resistor portion with an electrically insulative coating.
Claim 24
Dependent Claim
26 words
A method according to claim 21 wherein said applying step comprises directing a laser beam on said substrate so as to carburize said resistor portion thereof.
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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) | 1984-08-24 | 1985-02-23 | 1985-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-24 | 1989-02-23 | 1989-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-24 | 1993-02-23 | 1993-08-25 | $7700.00 | Window Closed / Lapsed |