Method of manufacturing an electrode for a gas discharge tube
Abstract
Abstract Quench tubes are switching which are used in electronic flash devices so as to reduce the quantity of light emitted by the flash lamp of that device. The electrodes of known quench tube became unusable after a short period. According to the invention a quench tube having a long lifetime and a reliable ignition is obtained when an electrode body consisting inter alia of sintered nickel powder is manufactured by means of a method in which the nickel powder is first mixed with a given material comprising an alkali metal or alkaline earth metal, whereafter the assembly is moulded to the desired form and is then sintered at a given temperature whereafter it is secured to a current supply rod and is subsequently activated by an electrical current pulse after it has been sealed in a discharge vessel.
Inventors
- 👤 M Menzel
Bibliographic Details
Claims Analysis
Total Claims: 2References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |