Patent US3909434A successfully refreshed from Google Patents.
US3909434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenoxy organosilicon compounds as dielectric fluids
Assignee: Dow Silicones Corp
•
Filing: 1974-03-07
•
Granted: 1975-09-30
•
Expires: 1994-03-07
Abstract
Abstract Organosilicon compounds of the formula where x is 1 to 30 and R is a phenyl or t-butylphenyl radical, are used as dielectric fluids in capacitors, transformers and other electrical devices. A specific compound is dimethyldiphenoxy silane which has a CIV of 3,100 volts and a CEV of 2,800 volts as measured over a gap of 1.4 mils.
Inventors
- 👤 Paul L Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:57
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/20; H01G4/22; H01G4/221; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/46; H01B3/465; H01F; H01F27/00; H01F27/28; H01F27/32; H01F27/321; C; C10; C10M; C10M2227/00; C10M2227/04; C10M2229/00; C10M2229/04; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10N; C10N2040/00; C10N2040/14; C10N2040/16; C10N2040/17
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
30 words
AN ARTICLE OF MANUFACTURE CONSISTING OF AN ELECTRICAL DEVICE HAVING AT LEAST TWO ELECTRODES HAVING BETWEEN SAID ELECTRODES A DIELECTRIC MATERIAL CONSISTING ESSENTIALLY OF AN ORGANOSILICON COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
30 words
AN ARTICLE OF MANUFACTURE CONSISTING OF AN ELECTRICAL DEVICE HAVING AT LEAST TWO ELECTRODES HAVING BETWEEN SAID ELECTRODES A DIELECTRIC MATERIAL CONSISTING ESSENTIALLY OF AN ORGANOSILICON COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
13 words
The article of claim 1 in which the electrical device is a capacitor.
Claim 4
Dependent Claim
13 words
The article of claim 1 in which the electrical device is a transformer.
Claim 5
Dependent Claim
13 words
The article of claim 1 in which the organosilicon compound is phenylmethyldiphenoxy silane.
Claim 6
Dependent Claim
24 words
THE ARTICLE OF CLAIM 1 IN WHICH THE ORGANOSILICON COMPOUND IS DIMETHYLDIPHENOXY SILANE. 8, THE ARTICLE OF CLAIM 6 IN WHICH R IS T-BUTYLPHENYL.
Claim 7
Dependent Claim
13 words
The article of claim 1 in which the organosilicon compound has the formula
Claim 8
Dependent Claim
10 words
The article of claim 6 in which R is phenyl.
References Cited (Backward Citations)
US2914548A
Cited
US3260904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |