Patent US2997414A successfully refreshed from Google Patents.
US2997414A
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Capacitor end-seal process
Assignee: Sprague Electric Co
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Filing: 1956-01-03
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Granted: 1961-08-22
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Expires: 1976-01-03
Abstract
No abstract record available.
Inventors
- 👤 Paul H Netherwood
- 👤 Laliberte Leopold
- 👤 Floyd W Shor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:58
CPC Classifications
H; H01; H01G; H01G2/00; H01G2/10; H01G2/103; Y; Y10; Y10T; Y10T29/00; Y10T29/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A PROCESS FOR PRODUCING AN END-SEAL FOR AN OPEN END OF A CAPACITOR CASING OF THE TYPE HAVING A CAPACITOR LEAD-WIRE EXTENDING THEREFROM, SAID PROCESS COMPRISING UNIFORMLY BLENDING MINERAL FILLER AND EPOXY RESIN, PELLETING THE UNIFORM BLEND INTO A DISC HAVING AN INWARDLY EXTENDING SLOT, HEATING THE SLOTTED PELLET, POSITIONING THE HEATED PELLET AT THE OPEN END OF A CAPACITOR CASING WITH A LEAD-WIRE FROM A CAPACITOR WITHIN THE CASING BEING FITTED IN THE SLOT, PRESSING THE POSITIONED PELLET INTO THE CASING THEREBY CLOSING THE SLOT AROUND THE LEAD-WIRE AND BONDING TO THE CASING, AND CURING THE PRESSED PELLET.
Claim 2
Dependent Claim
99 words
A PROCESS FOR PRODUCING AN END-SEAL FOR AN OPEN END OF A CAPACITOR CASING OF THE TYPE HAVING A CAPACITOR LEAD-WIRE EXTENDING THEREFROM, SAID PROCESS COMPRISING UNIFORMLY BLENDING MINERAL FILLER AND EPOXY RESIN, PELLETING THE UNIFORM BLEND INTO A DISC HAVING AN INWARDLY EXTENDING SLOT, HEATING THE SLOTTED PELLET, POSITIONING THE HEATED PELLET AT THE OPEN END OF A CAPACITOR CASING WITH A LEAD-WIRE FROM A CAPACITOR WITHIN THE CASING BEING FITTED IN THE SLOT, PRESSING THE POSITIONED PELLET INTO THE CASING THEREBY CLOSING THE SLOT AROUND THE LEAD-WIRE AND BONDING TO THE CASING, AND CURING THE PRESSED PELLET.
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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) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |