US3327156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron tube assembly
Assignee: Compagnie Francaise Thomson Houston SA
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Filing: 1964-07-09
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Granted: 1967-06-20
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Expires: 1984-07-09
Abstract
No abstract record available.
Inventors
- 👤 Gerlach Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:54
CPC Classifications
H; H01; H01J; H01J21/00; H01J21/36; H01J19/00; H01J19/28; H01J19/32; H01J19/34; H01J19/42; H01J19/50; H01J21/02; H01J21/06; H01J21/065; H01J21/34; H01J2893/00; H01J2893/0001; H01J2893/0002; H01J2893/0003; H01J2893/0005; H01J2893/0008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
AN ELECTRON TUBE ASSEMBLY HAVING ELECTRODES, SAID TUBE ASSEMBLY COMPRISING A MULTISECTION TUBE ENVELOPE FORMED, AT LEAST IN PART BY ANNULAR PARTS LOCATED AT ADJACENT ENDS OF SAID ELECTRODES, ONE OF WHICH PARTS CONNECTS WITH AN ELECTRODE, A CIRCUMFERENTIAL METALLIC SEAL JOINING EXTERNAL PERIPHERAL PORTIONS OF SAID RESPECTIVE ANNULAR PARTS IN COAXIALLY SPACED RELATION TO SEAL THE INTERIOR OF THE ENVELOPE FROM THE ATMOSPHERE AND TO HOLD SAID PARTS AND THUS SAID ELECTRODES OF SAID ELECTRON TUBE IN ASSEMBLY; WHEREIN THE IMPROVEMENT COMPRISES MEANS FORMING A LOW IMPEDANCE ELECTRICAL INTERCONNECTION BETWEEN THE OTHER OF SAID PARTS TO ONE OF SAID ELECTRODES, SAID LOW IMPEDANCE INTERCONNECTION MEANS COMPRISING A TOROIDAL CONTACT MEMBER IN THE FORM OF A RESILIENTLY HELICAL COIL OF WIRE FORMED INTO A RING, INTERPOSED BETWEEN ADJACENT END SURFACE OF SAID PARTS TO PROVIDE A LOW RESISTANCE ELECTRICAL PATH FROM SAID ONE TO SAID ADJACENT PART ELECTRICALLY IN SHUNT WITH SAID METALLIC SEAL; SAID COAXIAL PARTS BEING RETAINED BY SAID CIRCUMFERENTIAL SEAL AT A SEPARATION OF A DISTANCE LESS THAN THE DIAMETER OF THE HELIX TO CIRCUMFERENTIALLY COMPRESS THE
Claim 2
Dependent Claim
180 words
AN ELECTRON TUBE ASSEMBLY HAVING ELECTRODES, SAID TUBE ASSEMBLY COMPRISING A MULTISECTION TUBE ENVELOPE FORMED, AT LEAST IN PART BY ANNULAR PARTS LOCATED AT ADJACENT ENDS OF SAID ELECTRODES, ONE OF WHICH PARTS CONNECTS WITH AN ELECTRODE, A CIRCUMFERENTIAL METALLIC SEAL JOINING EXTERNAL PERIPHERAL PORTIONS OF SAID RESPECTIVE ANNULAR PARTS IN COAXIALLY SPACED RELATION TO SEAL THE INTERIOR OF THE ENVELOPE FROM THE ATMOSPHERE AND TO HOLD SAID PARTS AND THUS SAID ELECTRODES OF SAID ELECTRON TUBE IN ASSEMBLY; WHEREIN THE IMPROVEMENT COMPRISES MEANS FORMING A LOW IMPEDANCE ELECTRICAL INTERCONNECTION BETWEEN THE OTHER OF SAID PARTS TO ONE OF SAID ELECTRODES, SAID LOW IMPEDANCE INTERCONNECTION MEANS COMPRISING A TOROIDAL CONTACT MEMBER IN THE FORM OF A RESILIENTLY HELICAL COIL OF WIRE FORMED INTO A RING, INTERPOSED BETWEEN ADJACENT END SURFACE OF SAID PARTS TO PROVIDE A LOW RESISTANCE ELECTRICAL PATH FROM SAID ONE TO SAID ADJACENT PART ELECTRICALLY IN SHUNT WITH SAID METALLIC SEAL; SAID COAXIAL PARTS BEING RETAINED BY SAID CIRCUMFERENTIAL SEAL AT A SEPARATION OF A DISTANCE LESS THAN THE DIAMETER OF THE HELIX TO CIRCUMFERENTIALLY COMPRESS THE
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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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |