Method of manufacturing a colour television display tube having a gas-absorbing layer;color television display tube thus manufactured, and gettering device suitable for such a method
CA 1164846 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Hofer, Franz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PHN. 9749 14, ABSTRACT:, The invention relates to a method of manufacturing a colour television display tube the envelope of which comprises a conical portion and a window portion which are sealed together in a vacuum-tight manner by means of a sealing glass. Before said portions are sealed together, a gettering device is assembled in a place inside the envelope of the tube, for example to the internal magnetic screening cap or the high-voltage contact. The gettering device comprises a source of evaporable gettering metal and at least one gas source of a material releasing gas upon heating. The gas-releasing material consists at least substantially of a nitrided pulverulent ternary alloy of …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted April 3, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 2001.
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Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.