Electron gun structure for a cathode-ray tube

Details Electron gun structure for a cathode-ray tube Electron gun structure for a cathode-ray tube

2006-05-09

2006-05-09

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

Cathode ray tube

Ray generating or control

C313S451000

Reexamination Certificate

active

07042146

ABSTRACT:
The disclosure describes an electron gun having cathode support structure which comprises an eyelet that surrounds a cathode and is welded to the cathode, and a metal plate150substantially parallel to the longitudinal axis of the gun. The metal plate has a central part152folded so as to partially surround the eyelet and two side arms151extending an each side of the central part and connected thereto by a region155. The region has, in the direction of the longitudinal axis, a width which is greater than the width of the side arms in the same direction, thereby making it possible to use the same support for the side and central cathodes of a three-beam gun.

REFERENCES:
patent: 3317770 (1967-05-01), Merchant
patent: 3772558 (1973-11-01), Nagao
patent: 3857058 (1974-12-01), Nestleroth
patent: 4071803 (1978-01-01), Takanashi et al.
patent: 4151441 (1979-04-01), Puhak
patent: 4468588 (1984-08-01), Schlack et al.
patent: 5492226 (1996-02-01), Hwang et al.
patent: 2541886 (1975-09-01), None

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