Patent US2684886A successfully refreshed from Google Patents.
US2684886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-brazing cathode
Assignee: Bomac Laboratories Inc
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Filing: 1952-10-10
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Granted: 1954-07-27
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Expires: 1972-10-10
Abstract
No abstract record available.
Inventors
- 👤 Richard S Briggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:27
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/02; H01J23/04; H01J23/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A METHOD OF ASSEMBLING A SELF-BRAZING CATHODE COMPRISING THE STEPS OF DECREASING AND HYDROGEN BAKING A METALLIC RETAINING MEMBER COMPOSED OF AN EYELET SECTION AND RING SECTION, DEPOSITING A THIN LAYER OF NICKEL PLATING THEREON, ASSEMBLING AN ELECTRON EMITTER OVER SAID EYELET SECTION FOLLOWED BY SAID RING SECTION, MOUNTING SAID ASSEMBLED PARTS ON A CATHODE TUBE WITH A SUBSTANTIALLY PARTS ON A CATHODE TUBE WITH A HEATER ELEMENT THEREIN, APPLYING A SUSPENSION OF NICKEL POWDER AND A MIXING AGENT TO THE JOINTS OF THE ELECTRON EMITTER, EYELET SECTION, RING SECTION AND THE CATHODE TUBE AT THE POINT OF CONTACT, PROVIDING AN EXTERNAL CONNECTING SOURCE FOR SAID HEATER ELEMENT, VACUUM SEALING AND EVACUATING THE ASSEMBLER COMPONENTS, AND CONNECTING A VOLTAGE SOURCE TO THE HEATER ELEMENT SUFFICIENT TO HEAT THE ASSEMBLED EVACUATED AND VACUUM SEALED COMPONENT PARTS TO A TEMPERATURE SUFFICIENT TO CAUSE THE NICKEL POWDER SUSPENSION TO FLOW AND BRAZE THE ASSEMBLED COMPONENTS.
Claim 2
Independent Claim
152 words
A METHOD OF ASSEMBLING A SELF-BRAZING CATHODE COMPRISING THE STEPS OF DECREASING AND HYDROGEN BAKING A METALLIC RETAINING MEMBER COMPOSED OF AN EYELET SECTION AND RING SECTION, DEPOSITING A THIN LAYER OF NICKEL PLATING THEREON, ASSEMBLING AN ELECTRON EMITTER OVER SAID EYELET SECTION FOLLOWED BY SAID RING SECTION, MOUNTING SAID ASSEMBLED PARTS ON A CATHODE TUBE WITH A SUBSTANTIALLY PARTS ON A CATHODE TUBE WITH A HEATER ELEMENT THEREIN, APPLYING A SUSPENSION OF NICKEL POWDER AND A MIXING AGENT TO THE JOINTS OF THE ELECTRON EMITTER, EYELET SECTION, RING SECTION AND THE CATHODE TUBE AT THE POINT OF CONTACT, PROVIDING AN EXTERNAL CONNECTING SOURCE FOR SAID HEATER ELEMENT, VACUUM SEALING AND EVACUATING THE ASSEMBLER COMPONENTS, AND CONNECTING A VOLTAGE SOURCE TO THE HEATER ELEMENT SUFFICIENT TO HEAT THE ASSEMBLED EVACUATED AND VACUUM SEALED COMPONENT PARTS TO A TEMPERATURE SUFFICIENT TO CAUSE THE NICKEL POWDER SUSPENSION TO FLOW AND BRAZE THE ASSEMBLED COMPONENTS.
References Cited (Backward Citations)
US2570248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-26 | 1958-01-25 | 1958-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-26 | 1962-01-25 | 1962-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-26 | 1966-01-25 | 1966-07-27 | $7700.00 | Window Closed / Lapsed |