Patent US3290571A successfully refreshed from Google Patents.
US3290571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitor having unitary sealed enclosure of insulation
Assignee: Cornell Dubilier Electronics Inc
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Filing: 1965-08-27
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Granted: 1966-12-06
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Expires: 1985-08-27
Abstract
No abstract record available.
Inventors
- 👤 William M Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:45
CPC Classifications
H; H01; H01G; H01G2/00; H01G2/10; H01G2/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
AN ENCASED TUBULAR CAPACITOR COMPRISING AN OUTER TUBULAR ELEMENT OF THERMOPLASTIC INSULATING MATERIAL, A WOUND CAPACITOR BODY WITHIN SAID TUBULAR ELEMENT INTERMEDIATE THE ENDS THEREOF, CONTACT SPRING PRESSURE MEANS ABUTTING THE RESPECTIVE ENDS OF SAID WOUND CAPACITOR BODY, AND COMBINED END CONTACT AND LEAD TERMINAL ASSEMBLIES IN CONTACT WITH SAID CONTACT SPRING PRESSURE ELEMENTS, EACH OF SAID TERMINAL ASSEMBLIES INCLUDING A TRANSVERSE IMPERFORATE METAL WALL HAVING AN INTEGRAL OUTWARDPROJECTING ANNULAR FORMATION, A TERMINAL PROJECTING FROM SAID METAL WALL ENCIRCLED BY SAID ANNULAR FORMATION, THE ENDS OF SAID TUBULAR ELEMENT COMPLETELY COVERING AND BEING EVERYWHERE IN INTIMATE SURFACE CONTACT WITH THE ANNULAR FORMATION OF EACH TERMINAL ASSEMBLY AND EXTENDING INTO INTIMATE SURFACE CONTACT WITH A PORTION OF THE METAL WALL ENCIRCLED BY THE ANNULAR FORMATION, SAID OUTER TUBULAR ELEMENT OF THERMOPLASTIC INSULATING MATERIAL MAINTAINING SAID CONTACT SPRING PRESSURE MEANS IN STRESSED PRESSURE CONTACT WITH SAID CAPACITOR BODY.
Claim 2
Dependent Claim
146 words
AN ENCASED TUBULAR CAPACITOR COMPRISING AN OUTER TUBULAR ELEMENT OF THERMOPLASTIC INSULATING MATERIAL, A WOUND CAPACITOR BODY WITHIN SAID TUBULAR ELEMENT INTERMEDIATE THE ENDS THEREOF, CONTACT SPRING PRESSURE MEANS ABUTTING THE RESPECTIVE ENDS OF SAID WOUND CAPACITOR BODY, AND COMBINED END CONTACT AND LEAD TERMINAL ASSEMBLIES IN CONTACT WITH SAID CONTACT SPRING PRESSURE ELEMENTS, EACH OF SAID TERMINAL ASSEMBLIES INCLUDING A TRANSVERSE IMPERFORATE METAL WALL HAVING AN INTEGRAL OUTWARDPROJECTING ANNULAR FORMATION, A TERMINAL PROJECTING FROM SAID METAL WALL ENCIRCLED BY SAID ANNULAR FORMATION, THE ENDS OF SAID TUBULAR ELEMENT COMPLETELY COVERING AND BEING EVERYWHERE IN INTIMATE SURFACE CONTACT WITH THE ANNULAR FORMATION OF EACH TERMINAL ASSEMBLY AND EXTENDING INTO INTIMATE SURFACE CONTACT WITH A PORTION OF THE METAL WALL ENCIRCLED BY THE ANNULAR FORMATION, SAID OUTER TUBULAR ELEMENT OF THERMOPLASTIC INSULATING MATERIAL MAINTAINING SAID CONTACT SPRING PRESSURE MEANS IN STRESSED PRESSURE CONTACT WITH SAID CAPACITOR BODY.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |