Electronic tubes

Details Electronic tubes Electronic tubes

1978-06-15

1980-05-27

Chatmon, Jr., Saxfield

Electric lamp and discharge devices

With support and/or spacing structure for electrode and/or...

For shield

313190, 313207, 313313, 315 39, H01J 152

Patent

active

042052505

ABSTRACT:
In an electronic tube comprising a cup shaped first electrode, a cup shaped insulator bonded to the first electrode through a first joint and a second central electrode secured to the insulator through a second joint, there is provided a shielding member intercepting the equipotential magnetic planes of the leakage flux between the first and second joints for preventing thermal fracture of the insulator.

REFERENCES:
patent: 2217187 (1940-10-01), Smith
patent: 2310147 (1943-02-01), Dailey
patent: 3359446 (1967-12-01), Murakami et al.
patent: 3728573 (1973-04-01), Roeber
patent: 3761759 (1973-09-01), Brunhart et al.

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