US2637827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkali-metal rectifier
Assignee: Westinghouse Electric Corp
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Filing: 1951-03-30
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Granted: 1953-05-05
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Expires: 1971-03-30
Abstract
No abstract record available.
Inventors
- 👤 John L Boyer
- 👤 Willard S Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:03
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/50; H01J17/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A VAPOR-ELECTRIC DEVICE COMPRISING AN EVACUATED ENCLOSURE-MEANS, AN ANODE, A CATHODE, AND A QUANTITY OF A DISCHARGE-METAL WITHIN THE DEVICE, SAID DISCHARGE-METAL BEING SELECTED FROM THE GROUP CONSISTING OF CESIUM, RUBIDIUM, AND POTASSIUM; SAID CATHODE INCLUDING A METAL TUBEPORTION CONSTITUTING SIDE-WALLS OF SAID ENCLOSUREMEANS, SAID METAL TUBE-PORTION OF SAID CATHODE CARRYING INTERIORLY EXTENDING CATHODE-FINS IN GOOD THERMAL AND ELECTRICAL CONTACT THEREWITH; SAID ANODE INCLUDING A METAL TUBE-PORTION EXTENDING INTERIORLY OF SAID ENCLOSURE-MEANS AND INSIDE OF SAID FINNED PORTION OF THE CATHODE; SAID ENCLOSURE-MEANS INCLUDING AN INSULATING SEALMEANS BETWEEN SAID CATHODE AND SAID ANODE; MEANS FOR HEATING THE OUTSIDE OF THE METAL TUBEPORTION OF SAID CATHODE; AND MEANS FOR COOLING THE INSIDE OF THE METAL TUBE-PORTION OF SAID ANODE.
Claim 2
Dependent Claim
118 words
A VAPOR-ELECTRIC DEVICE COMPRISING AN EVACUATED ENCLOSURE-MEANS, AN ANODE, A CATHODE, AND A QUANTITY OF A DISCHARGE-METAL WITHIN THE DEVICE, SAID DISCHARGE-METAL BEING SELECTED FROM THE GROUP CONSISTING OF CESIUM, RUBIDIUM, AND POTASSIUM; SAID CATHODE INCLUDING A METAL TUBEPORTION CONSTITUTING SIDE-WALLS OF SAID ENCLOSUREMEANS, SAID METAL TUBE-PORTION OF SAID CATHODE CARRYING INTERIORLY EXTENDING CATHODE-FINS IN GOOD THERMAL AND ELECTRICAL CONTACT THEREWITH; SAID ANODE INCLUDING A METAL TUBE-PORTION EXTENDING INTERIORLY OF SAID ENCLOSURE-MEANS AND INSIDE OF SAID FINNED PORTION OF THE CATHODE; SAID ENCLOSURE-MEANS INCLUDING AN INSULATING SEALMEANS BETWEEN SAID CATHODE AND SAID ANODE; MEANS FOR HEATING THE OUTSIDE OF THE METAL TUBEPORTION OF SAID CATHODE; AND MEANS FOR COOLING THE INSIDE OF THE METAL TUBE-PORTION OF SAID ANODE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |