Method of salvaging a color selection electrode for a CRT

Details Method of salvaging a color selection electrode for a CRT Method of salvaging a color selection electrode for a CRT

1990-11-19

1991-09-03

Seidel, Richard K.

Electric lamp or space discharge component or device manufacturi

Process

Repairing, converting or salvaging

134 1, 252 793, H01J 950

Patent

active

050450077

ABSTRACT:
A method of salvaging a color selection electrode for a CRT having a coating of a compound of a heavy metal and an alkali silicate on a surface of the electrode includes the steps of immersing the electrode in a stripping solution consisting essentially of ammonium bifluoride, a suitable detergent, and water; agitating the solution to remove the coating from the electrode; rinsing, and then drying the electrode.

REFERENCES:
patent: 3033710 (1962-05-01), Hightower et al.
patent: 3901748 (1975-08-01), Clausen
patent: 4442376 (1984-04-01), Van Der Waal et al.
patent: 4581561 (1986-04-01), Palac
patent: 4884004 (1989-11-01), Deal et al.
patent: 4897213 (1990-01-01), Brink
patent: 4952185 (1990-08-01), Lee
H. Gourley, "Removal of Optical Coatings Without Polishing," SPIE, vol. 190, LAsL Optics Conf. (1979), pp. 73-79.

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