US3138652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitor with an internal gas barrier
Assignee: Individual
•
Filing: 1961-04-13
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Granted: 1964-06-23
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Expires: 1981-04-13
Abstract
No abstract record available.
Inventors
- 👤 Elmer L Ford
- 👤 Ralph E Hampy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:37
CPC Classifications
H; H01; H01G; H01G2/00; H01G2/14; H01G9/00; H01G9/004; H01G9/08; H01G9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
IN A CAPACITOR DEVICE OF THE CHARACTER DESCRIBED, THE COMBINATION OF A CONTAINER, A LIQUID SUBSTANTIALLY FILLING AVAILABLE SPACE WITHIN SAID CONTAINER, AN END WALL SECURED TO SAID CONTAINER HAVING A CENTRALLY DISPOSED APERTURE THERETHROUGH, AN ANNULAR INSULATING MEMBER CARRIED BY SAID END WALL AND PENETRATING SAID APERTURE HAVING A SUPPORTING SURFACE SPACED INWARDLY OF THE CONTAINER FROM SAID END WALL, AN ANNULARLY DISPOSED RETAINING SHOULDER CARRIED BY SAID END WALL AND PROJECTING INTO THE CONTAINER ENCIRCLING SAID ANNULAR INSULATING MEMBER AND SPACED RADIALLY OUTWARDLY THEREFROM AND HAVING A RECESS THEREABOUT, A YIELDABLE FLUID PERMEABLE MEMBRANE HAVING PERIPHERAL PORTIONS OVERLAPPING SAID SHOULDER, A RETAINING MEMBER CLAMPING SAID PERIPHERAL OVERLAPPING PORTIONS IN SAID RECESS, MEANS SECURING THE YIELDABLE MEMBRANE AGAINST SAID SUPPORTING SURFACE OF THE ANNULAR INSULATING MEMBER AT A LOCATION ADJACENT AND SPACED FROM SAID ANNULARLY DISPOSED RETAINING SHOULDER, SAID YIELDABLE MEMBRANE INTERMEDIATE THE RETAINING SHOULDER AN ADJACENT
Claim 2
Dependent Claim
148 words
IN A CAPACITOR DEVICE OF THE CHARACTER DESCRIBED, THE COMBINATION OF A CONTAINER, A LIQUID SUBSTANTIALLY FILLING AVAILABLE SPACE WITHIN SAID CONTAINER, AN END WALL SECURED TO SAID CONTAINER HAVING A CENTRALLY DISPOSED APERTURE THERETHROUGH, AN ANNULAR INSULATING MEMBER CARRIED BY SAID END WALL AND PENETRATING SAID APERTURE HAVING A SUPPORTING SURFACE SPACED INWARDLY OF THE CONTAINER FROM SAID END WALL, AN ANNULARLY DISPOSED RETAINING SHOULDER CARRIED BY SAID END WALL AND PROJECTING INTO THE CONTAINER ENCIRCLING SAID ANNULAR INSULATING MEMBER AND SPACED RADIALLY OUTWARDLY THEREFROM AND HAVING A RECESS THEREABOUT, A YIELDABLE FLUID PERMEABLE MEMBRANE HAVING PERIPHERAL PORTIONS OVERLAPPING SAID SHOULDER, A RETAINING MEMBER CLAMPING SAID PERIPHERAL OVERLAPPING PORTIONS IN SAID RECESS, MEANS SECURING THE YIELDABLE MEMBRANE AGAINST SAID SUPPORTING SURFACE OF THE ANNULAR INSULATING MEMBER AT A LOCATION ADJACENT AND SPACED FROM SAID ANNULARLY DISPOSED RETAINING SHOULDER, SAID YIELDABLE MEMBRANE INTERMEDIATE THE RETAINING SHOULDER AN ADJACENT
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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |