Electron display tubes with pressure-bonded faceplate seal

Details Electron display tubes with pressure-bonded faceplate seal Electron display tubes with pressure-bonded faceplate seal

H - Electricity

01

J

313/35.6

H01J 29/86 (2006.01) H01J 29/87 (2006.01) H01J 29/92 (2006.01)

Patent

CA 1135777

1 PHN. 32,523. ABSTRACT; Electron display tube, for example a television display tube having an envelope comprising a flat, glass face-plate sealed in a vacuum-tight manner to a flange of a metal cone portion by means of a pressure bonded seal consisting of a pressure-deformable material. The pressure-deformable material consists of copper, silver or gold, or has a melting-point of more than 300°C. The pressure-deformable material is maintained in compression by means of at least two strips of substantially U shaped cross-section situated on the periphery of flange and face- plate, of which the two limbs embrace the face-plate and the flange in such manner that a first limb extends along the outer surface of the face-plate and the second limb presses against the flange at a diverging angle with the first limb. The strips are tightly embraced by a metal rimband.

328301

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