Color picture tube with support arrangement for a rectangular sh

Details Color picture tube with support arrangement for a rectangular sh Color picture tube with support arrangement for a rectangular sh

1986-06-26

1988-03-01

DeMeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313407, H01J 2907

Patent

active

047288531

ABSTRACT:
In a color picture tube in which a shadow mask is placed close to a phosphor screen inside an envelope which has an oblong-shaped panel, the shadow mask is supported at the four corners of the panel by plate spring members. The spring members are each constructed from a 1st member which is fixed so that it is easily mounted on and dismounted from the stud pins on the panel and a 2nd member which is welded to the mask frame of the shadow mask. These members are incorporated as one by face-welding together at their ends. In this type of spring member structure, the members work together to alleviate the bending deformation which is applied to the members through the repeated mounting of the shadow mask panel which accompanies production.

REFERENCES:
patent: 3529199 (1970-09-01), Duistermaat et al.
patent: 3832592 (1974-08-01), Yamazaki et al.
patent: 4300071 (1981-11-01), Dougherty et al.

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