US3354340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cap-shaped control electrode securing cathode by thin supporting members
Assignee: US Philips Corp
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Filing: 1966-10-14
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Granted: 1967-11-21
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Expires: 1986-10-14
Abstract
No abstract record available.
Inventors
- 👤 Almer Friedrich Herman Raymund
- 👤 Schrijnemakers Gerardus Marie
- 👤 Kuiper Adrianus
- 👤 Alphonsus Petrus Van Rooy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:15
CPC Classifications
H; H01; H01J; H01J3/00; H01J3/02; H01J3/027; H01J29/00; H01J29/46; H01J29/48; H01J29/485
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
AN ELECTRON SOURCE FOR AN ELECTRON GUN, COMPRISING A PERFORATED, CAP-SHAPED CONTROL ELECTRODE IN WHICH A CYLINDRICAL CATHODE HAVING AN EMISSIVE END SURFACE IS SECURED BY MEANS OF A PLURALITY OF THIN SUPPORTING MEMBERS, A SUPPORTING CYLINDER, AN INSULATING BODY IN THE FROM OF A CYLINDRICAL RING, AND AN ANNULAR METAL BODY WHICH IS SECURED TO THE CONTROL ELECTRODE, CHARACTERIZED IN THAT THE OUTER CYLINDRICAL FACE OF THE INSULATING BODY IS CONNECTED TO THE ANNULAR METAL BODY AND ITS INNER CYLINDRICAL FACE IS SECURED TO THE SUPPORTING CYLINDER BY MEANS OF A SUBSTANCE FUSED THEREON, THE ENDS OF THE SUPPORTING MEMBERS ING FROM THE INSULATING BODY AND THE SUPPORTING CYLINDER OF THE CAHTODE BEING SECURED TO THE CATHODE SUPPORT AND TO A FLANGE PROVIDED ON THE END OF THE SUPPORTING CYLINDER ADJACENT THE EMISSIVE SURFACE OF THE CATHODE, WHILE THE ANNULAR METAL BODY BEING SECURED TO A PLURALITY OF TONGUES RECESSED IN THE CYLINDRICAL WALL OF THE CONTROL ELECTRODE.
Claim 2
Dependent Claim
159 words
AN ELECTRON SOURCE FOR AN ELECTRON GUN, COMPRISING A PERFORATED, CAP-SHAPED CONTROL ELECTRODE IN WHICH A CYLINDRICAL CATHODE HAVING AN EMISSIVE END SURFACE IS SECURED BY MEANS OF A PLURALITY OF THIN SUPPORTING MEMBERS, A SUPPORTING CYLINDER, AN INSULATING BODY IN THE FROM OF A CYLINDRICAL RING, AND AN ANNULAR METAL BODY WHICH IS SECURED TO THE CONTROL ELECTRODE, CHARACTERIZED IN THAT THE OUTER CYLINDRICAL FACE OF THE INSULATING BODY IS CONNECTED TO THE ANNULAR METAL BODY AND ITS INNER CYLINDRICAL FACE IS SECURED TO THE SUPPORTING CYLINDER BY MEANS OF A SUBSTANCE FUSED THEREON, THE ENDS OF THE SUPPORTING MEMBERS ING FROM THE INSULATING BODY AND THE SUPPORTING CYLINDER OF THE CAHTODE BEING SECURED TO THE CATHODE SUPPORT AND TO A FLANGE PROVIDED ON THE END OF THE SUPPORTING CYLINDER ADJACENT THE EMISSIVE SURFACE OF THE CATHODE, WHILE THE ANNULAR METAL BODY BEING SECURED TO A PLURALITY OF TONGUES RECESSED IN THE CYLINDRICAL WALL OF THE CONTROL ELECTRODE.
References Cited (Backward Citations)
US2833952A
Cited
US3155865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |