Mask spring structure for cathode ray tube

Details Mask spring structure for cathode ray tube Mask spring structure for cathode ray tube

2006-07-11

2006-07-11

Patel, Ashok (Department: 2879)

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

C313S404000

Reexamination Certificate

active

07075219

ABSTRACT:
A cathode ray tube comprises a panel having a fluorescent formed on an inner surface thereof; a funnel fastened to the panel; an electron gun housed in the funnel, emitting electron beams; a shadow mask for selecting colors of the electron beams; a mask frame for supporting the shadow mask; and a mask spring for coupling the mask frame to the panel, wherein the mask spring is comprised of an fastening portion welded to the mask frame, a attaching portion attached to the panel, and a connecting portion for connecting the fastening portion with the attaching portion, and elongated embossments are formed on a bending portion formed between the fastening portion and the connecting portion.

REFERENCES:
patent: 3999098 (1976-12-01), Dougherty
patent: 5210459 (1993-05-01), Lee
patent: 6144148 (2000-11-01), Tong et al.
patent: 6265818 (2001-07-01), Adamski et al.
patent: 2003/0057818 (2003-03-01), Ito
patent: 1161560 (1997-10-01), None

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