US3146391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generation of high voltage heavy current pulses
Assignee: Balfour Beatty PLC
•
Filing: 1959-01-08
•
Granted: 1964-08-25
•
Expires: 1979-01-08
Abstract
No abstract record available.
Inventors
- 👤 Walker Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:48
CPC Classifications
H; H01; H01G; H01G2/00; H01G4/00; H01G4/002; H01G4/018; H01G4/20; H01G4/22; H03; H03K; H03K3/00; H03K3/02; H03K3/53; H03K3/55
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
AN IMPULSE GENERATOR COMPRISING AN ELECTRIC CAPACITOR OF WHICH THE CONDUCTIVE ELEMENTS ARE INSULATED WITH KRAFT PAPER IMPREGNATED WITH CASTOR OIL, MEANS FOR REGULARLY AND REPEATEDLY FEEDING DIRECT CURRENT FROM A HIGH VOLTAGE SOURCE TO CHARGE THE CAPACITOR IN A PERIOD IN THE RANGE 2 SECONDS TO 2 MINUTES TO A PEAK VOLTAGE AT WHICH THE CAPACITOR INSULATION IS SUBJECTED TO AN ELECTRICAL STRESS OF AT LEAST 85 VOLTS PER MICRON, AND MEANS FOR REGULARLY AND REPEATEDLY PERMITTING THE CAPACITOR TO DISCHARGE RAPIDLY ON BECOMING CHARGED TO THE PEAK VOLTAGE.
Claim 2
Dependent Claim
90 words
AN IMPULSE GENERATOR COMPRISING AN ELECTRIC CAPACITOR OF WHICH THE CONDUCTIVE ELEMENTS ARE INSULATED WITH KRAFT PAPER IMPREGNATED WITH CASTOR OIL, MEANS FOR REGULARLY AND REPEATEDLY FEEDING DIRECT CURRENT FROM A HIGH VOLTAGE SOURCE TO CHARGE THE CAPACITOR IN A PERIOD IN THE RANGE 2 SECONDS TO 2 MINUTES TO A PEAK VOLTAGE AT WHICH THE CAPACITOR INSULATION IS SUBJECTED TO AN ELECTRICAL STRESS OF AT LEAST 85 VOLTS PER MICRON, AND MEANS FOR REGULARLY AND REPEATEDLY PERMITTING THE CAPACITOR TO DISCHARGE RAPIDLY ON BECOMING CHARGED TO THE PEAK VOLTAGE.
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) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |