Cathode ray tube having a contact spring fixed to an end of the

Details Cathode ray tube having a contact spring fixed to an end of the Cathode ray tube having a contact spring fixed to an end of the

1997-01-28

1998-05-12

Oen, William L.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

H01J 2880

Patent

active

057511012

ABSTRACT:
A cathode ray tube has a contact spring 30 which is fixed at one end to a shield cup 27 provided on an anode electrode 26 of an electron gun assembly and is pressed at the other end against an electrically conductive coating 3a applied to an inner wall of a funnel portion 3, so as to provide a reliable electrical connection between the anode electrode 26 and the electric conductive coating 3a and to hold the electron gun assembly coaxially in the neck portion 2. The contact spring 30 is made of an alloy material which is composed of 30-35 wt % nickel (Ni), 19-23 wt % chromium (Cr) and the balance of which is substantially iron (Fe), and which has a micro Vickers hardness of 250-400.

REFERENCES:
patent: 4432464 (1984-02-01), Seats et al.
patent: 4665338 (1987-05-01), Inaba et al.
patent: 5578898 (1996-11-01), Higashinakagawa et al.

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