US4296003A
Expired / Lapsed
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Atomized dielectric fluid composition with high electrical strength
Assignee: ABB Inc USA
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Filing: 1980-06-27
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Granted: 1981-10-20
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Expires: 2000-06-27
Abstract
Abstract A dielectric fluid composition with high electrical strength characterized by a first fluid selected from the group consisting of electronegative gases, such as SF6, CCl2F2, C2F6, CF3Cl, and CF4, and mixtures thereof; or from another group consisting of electropositive gases, such as N2 and CO2, and mixtures thereof; or from mixtures of the two groups; and a second fluid from a group of atomized liquids, which may be chlorinated liquid, such as, C2Cl4 (tetrachloroethylene); and fluorocarbon liquids, such as, C8F16O (perfluorodibutyl ether), and mixtures thereof.
Inventors
- 👤 Ronald T. Harrold
- 👤 Lawrence E. Ottenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:37
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/02; H01B3/16; H01B3/18; H01B3/20; H01B3/24; H01B3/56; H01F; H01F27/00; H01F27/08; H01F27/10; H01F27/18; H01F27/28; H01F27/32; H01F27/321
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
78 words
A dielectric fluid composition consisting of a mixture of (a) a first fluid selected from the group consisting of electronegative gases, electropositive gases, and mixtures thereof, and (b) a second fluid including an atomized liquid selected from the group consisting of chlorinated liquids, fluorocarbon liquids, and mixtures thereof and having a droplet size of from about 0.1μ to about 25μ in diameter, and wherein the mixture has a pressure of from about 40 Torr to about 730 Torr.
Claim 2
Dependent Claim
78 words
A dielectric fluid composition consisting of a mixture of (a) a first fluid selected from the group consisting of electronegative gases, electropositive gases, and mixtures thereof, and (b) a second fluid including an atomized liquid selected from the group consisting of chlorinated liquids, fluorocarbon liquids, and mixtures thereof and having a droplet size of from about 0.1μ to about 25μ in diameter, and wherein the mixture has a pressure of from about 40 Torr to about 730 Torr.
Claim 3
Dependent Claim
13 words
The composition of claim 1 wherein the first fluid is SF 6 .
Claim 4
Dependent Claim
15 words
The composition of claim 1 wherein the first fluid is CCl 2 F 2 .
Claim 5
Dependent Claim
15 words
The composition of claim 1 wherein the first fluid is C 2 F 6 .
Claim 6
Dependent Claim
13 words
The composition of claim 1 wherein the first fluid is CF 3 Cl.
Claim 7
Dependent Claim
13 words
The composition of claim 1 wherein the first fluid is CF 4 .
Claim 8
Dependent Claim
13 words
The composition of claim 1 wherein the first fluid is N 2 .
Claim 9
Dependent Claim
13 words
The composition of claim 1 wherein the first fluid is CO 2 .
Claim 10
Dependent Claim
16 words
The composition of claim 1 wherein the droplet size is from about 1μ to about 10μ.
Claim 11
Dependent Claim
24 words
The composition of claim 1 wherein the second fluid has a density factor of from about 2×10 3 about 2×10 5 droplets per cc.
Claim 12
Dependent Claim
12 words
The composition of claim 1 wherein the second fluid is a fluorocarbon.
Claim 13
Dependent Claim
15 words
The composition of claim 11 wherein the second fluid is C 8 F 16 O.
Claim 14
Dependent Claim
13 words
The composition of claim 1 wherein the second fluid is a chlorinated liquid.
Claim 15
Dependent Claim
15 words
The composition of claim 13 wherein the second fluid is C 2 Cl 4 .
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) | 1984-10-19 | 1985-04-20 | 1985-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-19 | 1989-04-20 | 1989-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-19 | 1993-04-20 | 1993-10-20 | $7700.00 | Window Closed / Lapsed |