Strengthening means for a deep-drawn in-line electron gun electr

Details Strengthening means for a deep-drawn in-line electron gun electr Strengthening means for a deep-drawn in-line electron gun electr

1982-03-02

1984-11-20

Demeo, Palmer

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313456, H01J 2950, H01J 2946

Patent

active

044841027

ABSTRACT:
An electron gun assembly includes a plurality of cathode assemblies and a plurality of spaced successive electrodes mounted on at least two electrically-insulating support rods. At least one of the electrodes comprises a deep-drawn substantially rectangular cup-shaped member having a base portion, a supporting flange portion, including a plurality of attachment tabs, and a sidewall extending between said base portion and said supporting flange. The sidewall includes a substantially wedge-shaped shoulder on each of the opposed side thereof that projects outwardly at an acute angle of about 45 degrees from the sidewall. The shoulders extend into the supporting flange adjacent to the attachment tabs. The shoulders form a gusset on each of the opposed sides of the cup-shaped member thereby increasing the structural rigidity of the member.

REFERENCES:
patent: 2942128 (1960-06-01), Johnson
patent: 3659133 (1972-04-01), Tsuneta et al.
patent: 3873879 (1975-03-01), Hughes
patent: 4049990 (1977-09-01), Collins
patent: 4049991 (1977-09-01), Collins
patent: 4119884 (1978-10-01), Blumenberg et al.
Soviet Inventor's Certificate No. 924302, Sep. 5, 1980-Cited in Russia.

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