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US3127537A
Expired / Lapsed
US
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Cathode mount and alloy therefor
Assignee: RCA Corp
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Filing: 1960-02-25
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Granted: 1964-03-31
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Expires: 1980-02-25
Abstract
No abstract record available.
Inventors
- 👤 Carel W Horsting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:22
CPC Classifications
H; H01; H01J; H01J1/00; H01J1/02; H01J1/13; H01J1/20; C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/051; C22C19/057; H01J1/14; H01J1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A CATHODE COMPRISING A CORE HAVING A COATING THEREON OF EMITTING MATERIAL, SAID CORE COMPRISING AN ALLOY CONSISTING BY WEIGHT AND EXCLUSIVE OF DIFFICULTY REMOVABLE IMPURITIES, OF FROM 30 TO 60% COBALT, 0.01 TO 2.0% ALUMINUM, 2 TO 25% TUNGSTEN, 2 TO 25% MOLYBDENUM, 0.01 TO 0.25% CARBON, 0.01 TO 0.10% MAGNESIUM AND THE REMAINDER NICKEL, SAID ALLOY HAVING RELATIVELY HIGH HOT STRENGTH, POOR HEAT CONDUCTIVITY AND GOOD EFFECT ON EMISSION FROM SAID COATING, FOR IMPROVED OPERATION OF SAID CATHODE.
Claim 2
Dependent Claim
80 words
A CATHODE COMPRISING A CORE HAVING A COATING THEREON OF EMITTING MATERIAL, SAID CORE COMPRISING AN ALLOY CONSISTING BY WEIGHT AND EXCLUSIVE OF DIFFICULTY REMOVABLE IMPURITIES, OF FROM 30 TO 60% COBALT, 0.01 TO 2.0% ALUMINUM, 2 TO 25% TUNGSTEN, 2 TO 25% MOLYBDENUM, 0.01 TO 0.25% CARBON, 0.01 TO 0.10% MAGNESIUM AND THE REMAINDER NICKEL, SAID ALLOY HAVING RELATIVELY HIGH HOT STRENGTH, POOR HEAT CONDUCTIVITY AND GOOD EFFECT ON EMISSION FROM SAID COATING, FOR IMPROVED OPERATION OF SAID CATHODE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |