Coating processes – Electrical product produced – Fluorescent or phosphorescent base coating
Patent
1978-04-04
1979-01-30
Smith, John D.
Coating processes
Electrical product produced
Fluorescent or phosphorescent base coating
65 36, 65 43, 118240, 118255, 118323, 118411, 118412, 156 89, 156107, 427279, 427284, 427 72, C03C 1700, C03C 1704
Patent
active
041373413
ABSTRACT:
A method and apparatus for coating a seal edge of a funnel portion of a television cathode ray tube with frit slurry, which method includes the steps of arranging at least one pair of nozzle bodies containing frit slurry adjacent to the seal edge, predetermining initial points and terminal points on the seal edge corresponding to the number of pairs of nozzle bodies, moving the paired nozzle bodies from one of the initial points, in opposite directions, along the seal edge while discharging the viscous material on the seal edge and having two of the nozzle bodies meeting each other at one of the terminal points. The whole seal edge is in this manner coated with a continuous uniform layer of frit slurry.
REFERENCES:
patent: 2294472 (1942-09-01), MacKenzie
patent: 2959493 (1960-11-01), Vincent
patent: 3492146 (1970-01-01), Kornaker
patent: 3701674 (1972-10-01), Kimbrough
patent: 3759771 (1973-09-01), Battersby
patent: 3947311 (1976-03-01), Jarchow et al.
patent: 4069354 (1978-01-01), Pekosh
Eslinger Lewis H.
Sinderbrand Alvin
Smith John D.
Sony Corporation
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