US4952783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light transmitting flexible film electrical heater panels
Assignee: Brady Corp
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Filing: 1989-03-20
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Granted: 1990-08-28
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Expires: 2009-03-20
Abstract
Abstract Flexible heater panels comprising a light transmitting film substrate and a transparent conductive layer vacuum deposited on the substrate formed of (1) a light transmitting flexible plastic film substrate and (2) a vacuum deposited transparent conductive layer on a surface of the substrate selected from the group consisting of (i) a single lamina of tin oxide or indium tin oxide, (ii) a first lamina of indium oxide on the surface of the substrate and a second lamina of indium tin oxide over the first lamina, or (iii) a first lamina of tin oxide, indium oxide or indium tin oxide on the surface of the substrate, a second lamina of silver, platinum or palladium or alloys thereof over the first lamina, and a third lamina of tin oxide, indium oxide or indium tin oxide over the second lamina.
Inventors
- 👤 Brian E. Aufderheide
- 👤 Michael J. Robrecht
- 👤 Wayne R. Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:57
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/10; H05B3/12; H05B3/14; H05B3/141; G; G02; G02B; G02B27/00; G02B27/0006; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/133382; H05B3/20; H05B3/34; H05B2203/00; H05B2203/011; H05B2203/013; H05B2203/017
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
213 words
A flexible light transmitting heater panel comprising, in combination: (1) a flexible light transmitting plastic film substrate; (2) a vacuum deposited transparent conductive layer on a first surface of the substrate selected from the group consisting of (i) a single lamina of tin oxide or indium tin oxide, (ii) a first lamina of indium oxide on the first surface of the substrate and a second lamina of indium tin oxide over the first lamina, or (iii) a first lamina of tin oxide, indium oxide or indium tin oxide on the first surface of the substrate, a second lamina of silver, platinum or palladium or an alloy of two or more of said metals over the first lamina, and a third lamina of tin oxide, indium oxide or indium tin oxide over the second lamina, the transparent conductive layer being in the range of about 200 to 5,000 Angstroms thick; and (3) a first conductive electrode extending over a first edge portion of the transparent conductive layer, and a second conductive electrode extending over a second edge portion of the transparent conductive layer spaced from and opposite from the first edge portion thereof, the first and second electrodes each including a section for connecting the heater panel to an AC or DC power source.
Claim 2
Dependent Claim
213 words
A flexible light transmitting heater panel comprising, in combination: (1) a flexible light transmitting plastic film substrate; (2) a vacuum deposited transparent conductive layer on a first surface of the substrate selected from the group consisting of (i) a single lamina of tin oxide or indium tin oxide, (ii) a first lamina of indium oxide on the first surface of the substrate and a second lamina of indium tin oxide over the first lamina, or (iii) a first lamina of tin oxide, indium oxide or indium tin oxide on the first surface of the substrate, a second lamina of silver, platinum or palladium or an alloy of two or more of said metals over the first lamina, and a third lamina of tin oxide, indium oxide or indium tin oxide over the second lamina, the transparent conductive layer being in the range of about 200 to 5,000 Angstroms thick; and (3) a first conductive electrode extending over a first edge portion of the transparent conductive layer, and a second conductive electrode extending over a second edge portion of the transparent conductive layer spaced from and opposite from the first edge portion thereof, the first and second electrodes each including a section for connecting the heater panel to an AC or DC power source.
Claim 3
Dependent Claim
268 words
A flexible light transmitting heater panel comprising, in combination: (1) a flexible light transmitting plastic film substrate; (2) a vacuum deposited transparent conductive layer on a first surface of the substrate selected from the group consisting of (i) a single lamina of tin oxide or indium tin oxide, (ii) a first lamina of indium oxide on the first surface of the substrate and a second lamina of indium tin oxide over the first lamina, or (iii) a first lamina of tin oxide, indium oxide or indium tin oxide on the first surface of the substrate, a second lamina of silver, platinum or palladium or an alloy of two or more of said metals over the first lamina, and a third lamina of tin oxide, indium oxide or indium tin oxide over the second lamina, the transparent conductive layer being in the range of about 200 to 5,000 Angstroms thick; (3) a first conductive electrode extending over a first edge portion of the transparent conductive layer, and a second conductive electrode extending over a second edge portion of the transparent conductive layer spaced from and opposite from the first edge portion thereof, the first and second electrodes each including a section for connecting the heater panel to an AC or DC power source; and in which (4) the transparent conductive layer covers a first portion of the first surface of the substrate, a pair of conductive traces are formed on another portion of the first surface of the substrate, and a chip thermistor is connected between the conductive traces for detecting substrate temperature when the heater panel is activated.
Claim 4
Dependent Claim
268 words
A flexible light transmitting heater panel comprising, in combination: (1) a flexible light transmitting plastic film substrate; (2) a vacuum deposited transparent conductive layer on a first surface of the substrate selected from the group consisting of (i) a single lamina of tin oxide or indium tin oxide, (ii) a first lamina of indium oxide on the first surface of the substrate and a second lamina of indium tin oxide over the first lamina, or (iii) a first lamina of tin oxide, indium oxide or indium tin oxide on the first surface of the substrate, a second lamina of silver, platinum or palladium or an alloy of two or more of said metals over the first lamina, and a third lamina of tin oxide, indium oxide or indium tin oxide over the second lamina, the transparent conductive layer being in the range of about 200 to 5,000 Angstroms thick; (3) a first conductive electrode extending over a first edge portion of the transparent conductive layer, and a second conductive electrode extending over a second edge portion of the transparent conductive layer spaced from and opposite from the first edge portion thereof, the first and second electrodes each including a section for connecting the heater panel to an AC or DC power source; and in which (4) the transparent conductive layer covers a first portion of the first surface of the substrate, a pair of conductive traces are formed on another portion of the first surface of the substrate, and a chip thermistor is connected between the conductive traces for detecting substrate temperature when the heater panel is activated.
Claim 5
Dependent Claim
19 words
A flexible heater panel according to claim 1, wherein: a layer of light transmitting adhesive covers the conductive layer.
Claim 6
Dependent Claim
29 words
A flexible heater panel according to claim 1, wherein: a layer of light transmitting pressure sensitive adhesive covers the transparent conductive layer, and a release liner covers said adhesive.
Claim 7
Dependent Claim
32 words
A flexible heater panel according to claim 1, wherein: the transparent conductive layer is rectangular in shape, and the first and second electrodes extend across opposed long edge portions of said layer.
Claim 8
Dependent Claim
32 words
A flexible heater panel according to claim 1, wherein: the transparent conductive layer is rectangular in shape, and the first and second electrodes extend across opposed short edge portions of said layer.
Claim 9
Dependent Claim
48 words
A flexible heater panel according to claim 1, wherein: the flexible plastic film substrate is die-cut to have a pair of spaced tails, and the connecting section of the first electrode is on one tail and the connecting section of the second electrode is on the other tail.
Claim 10
Dependent Claim
55 words
A flexible heater panel according to claim 1, wherein: the transparent conductive layer is on a first portion of the first surface of the substrate, and the connecting sections of the first and second electrodes are on a second portion of the first surface of the substrate and separated from each other by the substrate.
Claim 11
Dependent Claim
46 words
A flexible heater panel according to claim 1, wherein: a vacuum deposited transparent second conductive layer is on a second surface of the substrate opposite from the first surface, and a pair of spaced conductive electrodes extend over opposed edge portions of the second conductive layer.
Claim 12
Dependent Claim
25 words
A flexible heater panel according to claim 1, further including: a light transmitting plastic top film laminated over the conductive layer with light transmitting adhesive.
Claim 13
Dependent Claim
21 words
A flexible heater panel according to claim 10, further including: a first layer of light transmitting adhesive over the top film.
Claim 14
Dependent Claim
30 words
A flexible heater panel according to claim 11, further including: a second layer of light transmitting adhesive along a second surface of the substrate opposite from the first surface thereof.
Claim 15
Dependent Claim
29 words
A flexible heater panel according to claim 10, further including: a layer of light transmitting adhesive along a second surface of the substrate opposite from the first surface thereof.
Claim 16
Dependent Claim
22 words
A flexible heater panel according to any one of claims 1-13, wherein: the conductive electrodes are defined by printed silver conductive ink.
References Cited (Backward Citations)
US4320169A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-27 | 1994-02-26 | 1994-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-27 | 1998-02-26 | 1998-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-27 | 2002-02-26 | 2002-08-28 | $7700.00 | Window Closed / Lapsed |