Patent US3863116A successfully refreshed from Google Patents.
US3863116A
Expired / Lapsed
US
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New capacitor construction
Assignee: Acheson Industries Inc
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Filing: 1973-05-29
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Granted: 1975-01-28
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Expires: 1993-05-29
Abstract
Abstract A new capacitor construction such as a tantalum capacitor which is capable of sustained operation at high temperatures and which possesses significantly improved electrical properties.
Inventors
- 👤 James John Coniglio
- 👤 Robert Emerson Wiley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:30
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/15
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
141 words
In a solid capacitor for providing electrical capacitance due to a dielectric component in the capacitor, the improved construction including an anode lead, a cathode lead, and at least one coating composition applied in said construction comprised of: about 5 percent to about 20 percent by weight of fluoroelastomer for providing the coating with thermal stability to temperatures of 400*-700* F., about 80 percent to about 95 percent by weight of conductive pigment for providing conductivity to the coating, wherein said conductive pigment is a finely particulated material selected from at least one of the group consisting of noble metals and alloys thereof, silver, and copper particles, and zero to about 10 percent by weight of flow control agent facilitating application usage of the coating, and said coating being substantially free of flux residue and substantially free of amine curing agent.
Claim 2
Dependent Claim
141 words
In a solid capacitor for providing electrical capacitance due to a dielectric component in the capacitor, the improved construction including an anode lead, a cathode lead, and at least one coating composition applied in said construction comprised of: about 5 percent to about 20 percent by weight of fluoroelastomer for providing the coating with thermal stability to temperatures of 400*-700* F., about 80 percent to about 95 percent by weight of conductive pigment for providing conductivity to the coating, wherein said conductive pigment is a finely particulated material selected from at least one of the group consisting of noble metals and alloys thereof, silver, and copper particles, and zero to about 10 percent by weight of flow control agent facilitating application usage of the coating, and said coating being substantially free of flux residue and substantially free of amine curing agent.
Claim 3
Dependent Claim
19 words
The invention of claim 1 wherein, said coating composition enables operation at temperatures in the range of 400700* F.
Claim 4
Dependent Claim
12 words
The invention of claim 1 wherein, said capacitor is a tantalum capacitor.
Claim 5
Dependent Claim
27 words
The invention of claim 1 wherein, said fluoroelastomer is an elastomeric material selected from at least one of the group consisting of fluorinated and fluoro-chlorinated olefin polymers.
Claim 6
Dependent Claim
30 words
The invention of claim 1 wherein, said flow control agent means is a finely divided material selected from at least one of the group consisting of the silicas and silicates.
Claim 7
Dependent Claim
26 words
The invention of claim 1 wherein, said flow control agent means is present from about 0.05 percent to about 10 percent by weight of total solids.
Claim 8
Dependent Claim
35 words
The invention of claim 1 wherein, said fluoroelastomer is present from about 5 percent to about 10 percent by weight, said conductive pigment is present from about 90 percent to about 95 percent by weight.
Claim 9
Dependent Claim
124 words
AN IMPROVED SOLID TANTALUM CAPACITOR CONSTRUCTION INCLUDING A COATING COMPRISED OF, ABOUT 5 PERCENT TO ABOUT 20 PERCENT BY WEIGHT OF FLUOROELASTOMER FOR PROVIDING THE COATING WITH RESISTANCE TO TEMPERATURES OF 400*-700*F., ABOUT 80 PERCENT TO ABOUT 95 PERCENT BY WEIGHT OF CONDUCTIVE PIGMENT FOR PROVIDING CONDUCTIVITY TO THE COATING, WHEREIN SAIID CONDUCTIVE PIGMENT IS A FINELY PARTICULATED MATERIAL SELECTED FROM AT LEAST ONE OF THE GROUP CONSISTING OF NOBLE METALS AND ALLOYS THEREOF, SILVER, AND COPPER PARTICLES, AND ZERO TO ABOUT 10 PERCENT BY WEIGHT OF FLOW CONTROL AGENT FOR FACILITATING APPLICATION USAGE OF THE COATING, AND SAID COATING ENABLES OPERATION IN A TEMPERATURE RANGE OF 400*-700*F., AND SAID COATING BEING SUBSTANTIALLY FREE OF FLUX RESIDUE AND SUBSTANTIALLY FREE OF AMINE CURING AGENT.
Claim 10
Dependent Claim
124 words
AN IMPROVED SOLID TANTALUM CAPACITOR CONSTRUCTION INCLUDING A COATING COMPRISED OF, ABOUT 5 PERCENT TO ABOUT 20 PERCENT BY WEIGHT OF FLUOROELASTOMER FOR PROVIDING THE COATING WITH RESISTANCE TO TEMPERATURES OF 400*-700*F., ABOUT 80 PERCENT TO ABOUT 95 PERCENT BY WEIGHT OF CONDUCTIVE PIGMENT FOR PROVIDING CONDUCTIVITY TO THE COATING, WHEREIN SAIID CONDUCTIVE PIGMENT IS A FINELY PARTICULATED MATERIAL SELECTED FROM AT LEAST ONE OF THE GROUP CONSISTING OF NOBLE METALS AND ALLOYS THEREOF, SILVER, AND COPPER PARTICLES, AND ZERO TO ABOUT 10 PERCENT BY WEIGHT OF FLOW CONTROL AGENT FOR FACILITATING APPLICATION USAGE OF THE COATING, AND SAID COATING ENABLES OPERATION IN A TEMPERATURE RANGE OF 400*-700*F., AND SAID COATING BEING SUBSTANTIALLY FREE OF FLUX RESIDUE AND SUBSTANTIALLY FREE OF AMINE CURING AGENT.
Claim 11
Dependent Claim
13 words
The invention of claim 1 wherein, said conductive pigment is substantially of silver.
Claim 12
Dependent Claim
14 words
The invention of claim 1 wherein, said fluoroelastomer is a vinylidene fluoride/hexafluoropropylene copolymer material.
Claim 13
Dependent Claim
14 words
The invention of claim 9 wherein, said fluoroelastic is a vinylidene fluoride/hexafluoropropylene copolymer material.
Claim 14
Dependent Claim
13 words
The invention of claim 11 wherein, said conductive pigment is substantially of silver.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-27 | 1978-07-29 | 1979-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-27 | 1982-07-29 | 1983-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-27 | 1986-07-29 | 1987-01-28 | $7700.00 | Window Closed / Lapsed |