Means and method for injecting television picture tube bases

Details Means and method for injecting television picture tube bases Means and method for injecting television picture tube bases

1980-05-27

1982-06-15

Desmond, Eugene F.

Geometrical instruments

313318, H01R 3374

Patent

active

043347312

ABSTRACT:
A television cathode ray picture tube has a narrow neck terminated by a number of electrically conductive low-voltage pins and at least one high-voltage pin extending axially from the neck terminus. The tube according to the invention is characterized by having a base for passing and isolating said pins including a port adjacent to said terminus leading to a cavity surrounding the high-voltage pin. The cavity opens onto said terminus over a substantial portion of the area of the terminus. The port has acceptance means for connection to mating injector means for injecting the cavity with a metered amount of electrically insulative adhesive. The base provides for the injection of the adhesive in the exact location desired, and in an amount effective to fill the cavity and electrically isolate the high-voltage pin and adhere the base to the neck terminus. An improved method is also disclosed for electrically isolating the high-voltage pin and adhering a tube base to the neck terminus.

REFERENCES:
patent: 4127313 (1978-11-01), Marks
patent: 4211465 (1980-07-01), Puhak et al.

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