US3089972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric discharge device
Assignee: Westinghouse Electric Corp
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Filing: 1960-07-14
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Granted: 1963-05-14
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Expires: 1980-07-14
Abstract
No abstract record available.
Inventors
- 👤 Daniel A Larson
- 👤 Peter J Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:06
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/70; H01J61/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A METALLIC-VAPOR DISCHARGE DEVICE OF THE TYPE DESIGNED TO BE OPERATED UNDER SUCH CONDITIONS THAT THE METALLIC-VAPOR PRESSURE NORMALLY WOULD BE HIGHTER THAN THAT REQUIRED FOR OPTIMUM EFFECIENCY, COMPRISING A SEALED ENVELOPE CONTAINING SPACED ELECTRODES BETWEEN WHICH A GASEOUS DISCHARGE OCCURS DURING THE OPOERATION OF SAID DEVICE, A TUBULATION INTEGRAL WITH AND EXTENDING FROM ONE END OF SAID ENVELOPE, AND A BASE ATTACHED TO SAID ONE END OF SAID ENVELOPE PROTECTIVELY ENCLOSING BUT SPACED FROM SAID TUBULATION, SAID BASE HAVING AN ENVELOPE-RECEIVING PORTION AND AN INTERMEDIATE VENTED PORTION, THE OUTER END OF SAID TUBULATION BEING CLOSED AND INNER END THEREOF BEING OPEN AND COMMUNICATING WITH THE INTERIOR OF SAID ENVELOPE, SAID TUBULATION EXTENDING A CONSIDERABLE DISTANCE BEYOND THE END OF SAID ENVELOPE AND INTO THE INTERMEDIATE VENTED PORTION OF SAID BASE, THE LENGTH AND DIAMETER OF SAID TUBULATION BEING SUCH THAT AT LEAST A PART THEREOF HAS A LOWER OPERATING TEMPERATURE THAN SAID ENVELOPE AND THEREBY PROVIDES A COOL REGION WITHIN SAID DEVICE THAT REDUCES THE METALLIC-VAPOR PRESSURE AND MAINTAINS IT AT APPROXIMATELY THE DESIRED VALUE.
Claim 2
Dependent Claim
176 words
A METALLIC-VAPOR DISCHARGE DEVICE OF THE TYPE DESIGNED TO BE OPERATED UNDER SUCH CONDITIONS THAT THE METALLIC-VAPOR PRESSURE NORMALLY WOULD BE HIGHTER THAN THAT REQUIRED FOR OPTIMUM EFFECIENCY, COMPRISING A SEALED ENVELOPE CONTAINING SPACED ELECTRODES BETWEEN WHICH A GASEOUS DISCHARGE OCCURS DURING THE OPOERATION OF SAID DEVICE, A TUBULATION INTEGRAL WITH AND EXTENDING FROM ONE END OF SAID ENVELOPE, AND A BASE ATTACHED TO SAID ONE END OF SAID ENVELOPE PROTECTIVELY ENCLOSING BUT SPACED FROM SAID TUBULATION, SAID BASE HAVING AN ENVELOPE-RECEIVING PORTION AND AN INTERMEDIATE VENTED PORTION, THE OUTER END OF SAID TUBULATION BEING CLOSED AND INNER END THEREOF BEING OPEN AND COMMUNICATING WITH THE INTERIOR OF SAID ENVELOPE, SAID TUBULATION EXTENDING A CONSIDERABLE DISTANCE BEYOND THE END OF SAID ENVELOPE AND INTO THE INTERMEDIATE VENTED PORTION OF SAID BASE, THE LENGTH AND DIAMETER OF SAID TUBULATION BEING SUCH THAT AT LEAST A PART THEREOF HAS A LOWER OPERATING TEMPERATURE THAN SAID ENVELOPE AND THEREBY PROVIDES A COOL REGION WITHIN SAID DEVICE THAT REDUCES THE METALLIC-VAPOR PRESSURE AND MAINTAINS IT AT APPROXIMATELY THE DESIRED VALUE.
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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |