US3243675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitor construction and method for accomplishing same
Assignee: Illinois Tool Works Inc
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Filing: 1965-08-02
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Granted: 1966-03-29
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Expires: 1985-08-02
Abstract
No abstract record available.
Inventors
- 👤 Charles C Rayburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:23
CPC Classifications
H; H01; H01G; H01G13/00; H01G13/006; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435; Y10T29/49; Y10T29/49826; Y10T29/49908
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
90 words
A CONVOLUTELY ROLLED CAPACITOR COMPRISING ELECTRODE FOIL MEANS AND THERMOSPLASTIC DIELECTRIC MEANS WOUND IN A COIL TO PROVIDE SPACED END SURFACES, LEAD MEANS EMBEDDED IN AT LEAST ONE END SURFACE AND IN ELECTRICAL CONTACT WITH SAID ELECTRODE FOIL MEANS, SAID END SURFACE BEING CHARACTERIZED A HAVING AT LEAST ONE RIB OF FUSED DIELECTRIC MATERIAL EXTENDING SUBSTANTIALLY TRANSVERSELY TO THE AXIS OF THE COIL IN BONDED ENGAGEMENT WITH SAID LEAD WIRE AND SAID PLASTIC DIELECTRIC TO PROVIDE A STRONG MECHANICAL ATTACHMENT OF THE LEAD WIRE TO THE END OF THE CAPACITOR.
Claim 2
Dependent Claim
90 words
A CONVOLUTELY ROLLED CAPACITOR COMPRISING ELECTRODE FOIL MEANS AND THERMOSPLASTIC DIELECTRIC MEANS WOUND IN A COIL TO PROVIDE SPACED END SURFACES, LEAD MEANS EMBEDDED IN AT LEAST ONE END SURFACE AND IN ELECTRICAL CONTACT WITH SAID ELECTRODE FOIL MEANS, SAID END SURFACE BEING CHARACTERIZED A HAVING AT LEAST ONE RIB OF FUSED DIELECTRIC MATERIAL EXTENDING SUBSTANTIALLY TRANSVERSELY TO THE AXIS OF THE COIL IN BONDED ENGAGEMENT WITH SAID LEAD WIRE AND SAID PLASTIC DIELECTRIC TO PROVIDE A STRONG MECHANICAL ATTACHMENT OF THE LEAD WIRE TO THE END OF THE CAPACITOR.
Claim 3
Independent Claim
114 words
THE METHOD OF FABRICATING A CAPACITOR COMPRISING CONVOLUTE WINDING OF STRIPS OF CONDUCTIVE MATERIAL SEPARATED FROM EACH OTHER BY THERMOPLASTIC DIELECTRIC MATERIAL TO FORM A COIL, SAID STRIPS OF CONDUCTIVE MATERIAL BEING IN STAGGERED ARRANGEMENT AND THE EDGES OF AID DIELECTRIC MATERIAL BEING THE ENDS OF SAID COIL, PLACING AN ELECTRICAL LEAD MEANS AGAINST ONE END OF SAID COIL, HEATING SAID LEAD MEANS AND SAID ELECTRIC MATERIAL TO MELT A PORTION FO SAID ELECTRIC MATERIAL, EMBEDDING SAID LEAD MEANS INTO CONTACT WITH ONE OF SAID STRIPS OF CONDUCTIVE MATERIAL, DISPLACING MELTED DIELECTIC MATERIAL TO FORM A RIB OVER SAID LEAD MEANS, AND COOLING SAID ELECTRIC MATERIAL TO LOCK SAID LEAD MEANS WITHIN SAID COIL.
Claim 4
Independent Claim
114 words
THE METHOD OF FABRICATING A CAPACITOR COMPRISING CONVOLUTE WINDING OF STRIPS OF CONDUCTIVE MATERIAL SEPARATED FROM EACH OTHER BY THERMOPLASTIC DIELECTRIC MATERIAL TO FORM A COIL, SAID STRIPS OF CONDUCTIVE MATERIAL BEING IN STAGGERED ARRANGEMENT AND THE EDGES OF AID DIELECTRIC MATERIAL BEING THE ENDS OF SAID COIL, PLACING AN ELECTRICAL LEAD MEANS AGAINST ONE END OF SAID COIL, HEATING SAID LEAD MEANS AND SAID ELECTRIC MATERIAL TO MELT A PORTION FO SAID ELECTRIC MATERIAL, EMBEDDING SAID LEAD MEANS INTO CONTACT WITH ONE OF SAID STRIPS OF CONDUCTIVE MATERIAL, DISPLACING MELTED DIELECTIC MATERIAL TO FORM A RIB OVER SAID LEAD MEANS, AND COOLING SAID ELECTRIC MATERIAL TO LOCK SAID LEAD MEANS WITHIN SAID COIL.
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |