US3201618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermionic converter
Assignee: Radiation Research Corp
•
Filing: 1959-03-10
•
Granted: 1965-08-17
•
Expires: 1979-03-10
Abstract
No abstract record available.
Inventors
- 👤 John H Coleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:24
CPC Classifications
H; H01; H01J; H01J45/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A THERMIONIC ELECTRIC GENERATOR HAVING AN ELECTRON EMISSIVE CATHODE FOR EMITTING ELECTRONS IN RESPONSE TO THE APPLICATION OF HEAT, AN ANODE FOR COLLECTING ELECTRONS EMITTED BY SAID CATHODE, A SUBSTANTIALLY GAS-FREE SPACE BETWEEN SAID CATHODE AND SAID ANODE, A THERMIONIC ION SOURCE HEATED BY HEAT DERIVED FROM SAID CATHODE FOR SUPPLYING NEUTRALIZING IONS TO SAID SPACE, A HEAT CONDUCTING BODY BETWEEN SAID CATHODE AND SAID ION SOURCE FOR ESTABLISHING A TEMPERATURE GRADIENT THEREBETWEEN, AND ELECTRICAL CONNECTIONS FOR CONNECTING SAID ANODE AND SAID CATHODE TO A USEFUL LOAD.
Claim 2
Dependent Claim
87 words
A THERMIONIC ELECTRIC GENERATOR HAVING AN ELECTRON EMISSIVE CATHODE FOR EMITTING ELECTRONS IN RESPONSE TO THE APPLICATION OF HEAT, AN ANODE FOR COLLECTING ELECTRONS EMITTED BY SAID CATHODE, A SUBSTANTIALLY GAS-FREE SPACE BETWEEN SAID CATHODE AND SAID ANODE, A THERMIONIC ION SOURCE HEATED BY HEAT DERIVED FROM SAID CATHODE FOR SUPPLYING NEUTRALIZING IONS TO SAID SPACE, A HEAT CONDUCTING BODY BETWEEN SAID CATHODE AND SAID ION SOURCE FOR ESTABLISHING A TEMPERATURE GRADIENT THEREBETWEEN, AND ELECTRICAL CONNECTIONS FOR CONNECTING SAID ANODE AND SAID CATHODE TO A USEFUL LOAD.
References Cited (Backward Citations)
US2510397A
Cited
GB741058A
Cited
US2759112A
Cited
US2867729A
Cited
US2863074A
Cited
US3021472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |