US3116535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for impregnating capacitors
Assignee: Aerovox Corp
•
Filing: 1956-04-16
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Granted: 1964-01-07
•
Expires: 1976-04-16
Abstract
No abstract record available.
Inventors
- 👤 Ernest D Ganz
- 👤 Peter P Grad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:58
CPC Classifications
H; H01; H01G; H01G13/00; H01G13/04; H01B; H01B3/00; H01B3/18; H01B3/48; H01B3/485; Y; Y10; Y10T; Y10T29/00; Y10T29/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN THE METHOD OF IMPREGNATING WITH LIQUID IMPREGNANT, A CAPACITOR SECTION OF THE TYPE COMPRISING ELECTRODES AND INTERVENING SPACERS HAVING INTERSTICES THERIN, BY DRAWING THE IMPREGNANT UNDER PRESSURE VARIATION AND HEAT BETWEEN THE ELECTRODES AND INTO SUCH INTERSTICES AND THEREUPON SEALING THE CAPACITOR SECTION IN A CONTAINER; THE FURTHER STEP OF SUBJECTING THE THUS IMPREGNATED AND SEALED CAPACITOR TO A SERIES OF HEAT TREATING CYCLES, EACH OF WHICH CONSISTS OF GRADUALLY VARYNG THE TEMPERATURE OF THE CAPACTIOR AND ITS DIELECTRIC BETWEEN LOWER AND UPPER LIMITS, WHEREIN THE UPPER LIMIT OF TEMPERATURES AND THE LOWER LIMIT OF TEMPERATURES OF EACH CYCLE ARE EACH MAINTAINED FOR A SUBSTANTIAL PERIOD OF TIME.
Claim 2
Dependent Claim
109 words
IN THE METHOD OF IMPREGNATING WITH LIQUID IMPREGNANT, A CAPACITOR SECTION OF THE TYPE COMPRISING ELECTRODES AND INTERVENING SPACERS HAVING INTERSTICES THERIN, BY DRAWING THE IMPREGNANT UNDER PRESSURE VARIATION AND HEAT BETWEEN THE ELECTRODES AND INTO SUCH INTERSTICES AND THEREUPON SEALING THE CAPACITOR SECTION IN A CONTAINER; THE FURTHER STEP OF SUBJECTING THE THUS IMPREGNATED AND SEALED CAPACITOR TO A SERIES OF HEAT TREATING CYCLES, EACH OF WHICH CONSISTS OF GRADUALLY VARYNG THE TEMPERATURE OF THE CAPACTIOR AND ITS DIELECTRIC BETWEEN LOWER AND UPPER LIMITS, WHEREIN THE UPPER LIMIT OF TEMPERATURES AND THE LOWER LIMIT OF TEMPERATURES OF EACH CYCLE ARE EACH MAINTAINED FOR A SUBSTANTIAL PERIOD OF TIME.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-06 | 1967-07-08 | 1968-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-06 | 1971-07-08 | 1972-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-06 | 1975-07-08 | 1976-01-07 | $7700.00 | Window Closed / Lapsed |